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Tytuł:
Large prospective validation and cultural adaptation of the Polish version of the Swiss Spinal Stenosis Questionnaire for patients with lumbar spinal stenosis
Autorzy:
Tomaszewski, Krzysztof Andrzej
Kłosiński, Michał
Henry, Brandon Michael
Skinningsrud, Bendik
Kucharska, Ewa
Dudkiewicz, Zbigniew
Chrzanowski, Robert
Mikos, Marcin
Głowacki, Roman
Pąchalska, Maria
Powiązania:
https://bibliotekanauki.pl/articles/986690.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
quality of life
lumbar spinal stenosis
swiss spinal stenosis questionnaire
polish validation study
Opis:
Objective. The aim of this prospective cohort study was to translate, validate and perform a cultural adaptation of the Polish version of the Swiss Spinal Stenosis Questionnaire (P-SSSQ), a disease-specific questionnaire for assessing symptom severity, physical function and satisfaction with treatment in patients with lumbar spinal stenosis (LSS). Materials and method. Patients were prospectively recruited at two orthopedic centres in Krakow, Poland, between January 2011 – October 2016. During the interview, each patient completed the P-SSSQ, SF-36 Health Survey, and a demographic data questionnaire. After translation, cross-cultural adaptation, and pilot testing, assessment was made of the internal consistency, test–retest reliability, construct validity, and responsiveness of the P-SSSQ subscales. Results. Finally, 171 consecutive patients were included in the study. Cronbach’s alpha and ICC values were above 0.8 for all three subscales of the P-SSSQ. The symptom severity domain was highly negatively correlated with physical functioning and bodily pain of SF-36, with Pearson correlation coefficients of -0.68 and -0.63, respectively. The physical function domain was highly negatively correlated with physical functioning (r = -0.62). The satisfaction subscale was also highly negatively correlated with the change in the symptom severity (r = −0.61) and physical function scale (r = −0.65). Conclusions. The proposed version of the P-SSSQ showed excellent measurement properties and can be considered validated for use in Polish. It is easy to understand, quick to complete, and the psychometric properties of the original version are maintained.
Źródło:
Annals of Agricultural and Environmental Medicine; 2017, 24, 4
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endovascular technologies and reconstructive interventions on profound femoral artery at revascularization of multilevel stenotic-occlusive process of infrainguinal arterial channel
Autorzy:
Herasymiuk, Nazar I.
Husak, Mykhailo O.
Venher, Ihor K.
Kovalskyy, Dmytro V.
Loyko, Ihor I.
Selskyy, Boryslav P.
Powiązania:
https://bibliotekanauki.pl/articles/1580660.pdf
Data publikacji:
2020-01-27
Wydawca:
Uniwersytet Mikołaja Kopernika w Toruniu. Wydział Nauk o Ziemi i Gospodarki Przestrzennej. Katedra Kultury Fizycznej
Tematy:
arterial stenosis
revascularization
shunting interventions
Opis:
Introduction. Number of patients with obliterating lesions of the aorta and main arteries of the lower extermities has been steadily increasing every year. When choosing the scope of surgical treatment all the features of the multilevel stenotic-occlusive process of the infrainguinal arterial bed should be taken into account. Purpose. To improve the results of revascularization of the infrainguinal arterial bed by applying surgical intervention on profound femoral artery and endovascular methods to restore permeability of the outflow arteries. Materials and methods. The work is based on the results of examination and surgical treatment of 264 patients with stenotic-occlusive process of the infrainguinal arterial bed. There were four groups of patients. The basis of revascularization interventions on the infranguinal artery was shunt surgery. Bypass surgery was performed using a reverse autovein. The combined shunt was used for localization of the distal anastomosis at the level of the popliteal, shin arteries, tibioperinel trunk. Results. In atherosclerotic stenotic-occlusive lesions of the infrainguinal arterial bed of the lower extremity, the volume of surgical treatment depends on the level of the occlusive process, the functional state of the PFA and the blood flow pathways. And the method of surgical intervention in shunt interventions is determined by the type of distal lesion and the level of imposition of distal and proximal anastomoses. Conclusion. The use of endovascular methods of revascularization and reconstructive interventions on PFA in combination with femoral-distal shunt operations contributes to good and satisfactory results of surgical treatment of stenotic-occlusive processes of the infrainguinal arterial bed.
Źródło:
Journal of Education, Health and Sport; 2021, 11, 1; 153-162
2391-8306
Pojawia się w:
Journal of Education, Health and Sport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena leczenia operacyjnego pacjentów ze stenozą zwyrodnieniową w odcinku lędźwiowym metodą hemilaminektomii
An assessment of surgical treatment using hemilaminectomy in patients with degenerative lumbar stenosis
Autorzy:
Sobański, Dawid
Strohm, Wiesław
Kolasa, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1053271.pdf
Data publikacji:
2014
Wydawca:
Medical Communications
Tematy:
choroba zwyrodnieniowa
kręgosłup lędźwiowy
stenoza
hemilaminektomia
chromanie neurogenne
degenerative stenosis
lumbar spine
stenosis
hemilaminectomy
neurogenic claudication
Opis:
Degenerative stenosis of a lumbar segment relates in particular to older people. The most often method, bringing satisfying results is surgical treatment consisting primarily on decompression of vertebral canal. Conservative treatment is rarely used therapy in this disease. One hundred and twenty patients were subjected to retrospective researches, men and women, in whom was diagnosed degenerative stenosis of a lumbar segment. Sixty patients in one group was threaten surgically by hemilaminectomy, and next was analyzed postsurgical results. In similar comparative group was applied conservative treatment. In postsurgical evaluation among patients was proven significant increase of distance of neurogenic claudication and increase of postoperative result, 51 patients was satisfied of treatment. In comparative group fraction of patients satisfied of applied treatment was significantly smaller. Distance of neurogenic claudication was increase significantly in research group where was used surgical treatment. While in patients of comparative group treated rehabilitation method, distance of neurogenic claudication didn’t change. Postoperative result was significantly better, than after conservative treatment. The result of operation was that dimension A-P of spinal canal was increased. A removal of vertebral arches which extraction of adjacent yellow ligaments and overgrown elements of joint is proper method of laminectomy and doesn’t expose patient for increment of complications connected with surgical treatment. Hemilaminectomy was used by Poletti and Yong-Cheol et al. also. Surgical treatment clearly exceeds rehabilitation methods at patients with degenerative stenosis of a lumbar segment.
Stenoza zwyrodnieniowa lędźwiowego odcinka kręgosłupa dotyczy szczególnie ludzi starszych. Najskuteczniejszą metodą terapeutyczną jest leczenie operacyjne, polegające na odbarczeniu kanału kręgowego. Badaniu retrospektywnemu poddano 120 pacjentów z klinicznie i radiologicznie zdiagnozowaną stenozą zwyrodnieniową kręgosłupa lędźwiowego. Grupę badaną stanowiło 60 chorych, których leczono operacyjnie – metodą hemilaminektomii. Grupę porównawczą tworzyło 60 pacjentów rehabilitowanych. U osób z grupy badanej znacznie wydłużył się dystans pokonywany bez objawów chromania neurogennego. W grupie porównawczej nie zaobserwowano zmian w tym zakresie. Wynik leczenia operacyjnego okazał się znacznie lepszy od rezultatów leczenia zachowawczego. Po operacji odbarczającej powiększył się również wymiar kanału kręgowego A-P. Usunięcie łuku kręgu po jednej stronie – wraz z przyległymi więzadłami żółtymi i przerośniętymi elementami stawu – to metoda wystarczająca do właściwego odbarczenia i nienarażająca pacjenta na duże ryzyko okołooperacyjne. Hemilaminektomia została zastosowana przez takich autorów, jak Poletti czy Yong-Cheol i wsp. W wyniku przeprowadzonych badań można jednoznacznie stwierdzić, że leczenie operacyjne pacjentów ze stenozą w lędźwiowym odcinku kręgosłupa jest skuteczniejsze od rehabilitacji.
Źródło:
Aktualności Neurologiczne; 2014, 14, 1; 70-74
1641-9227
2451-0696
Pojawia się w:
Aktualności Neurologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relevance of Primitive Carotidobasilar Anastomosis for Internal Carotid Artery Stenosis
Autorzy:
Udelnow, Andrej
Goertler, Michael
Meyer, Frank
Halloul, Zuhir
Powiązania:
https://bibliotekanauki.pl/articles/1395747.pdf
Data publikacji:
2014-04-01
Wydawca:
Index Copernicus International
Tematy:
internal crotid artery stenosis
primitive carotidobasilar anastomosis
Opis:
Primitive carotido-basilar anastomoses (PCA) are persistent fetal vessels. The aim of the study was to compare the clinical characteristics of patients operated on for internal carotid artery (ICA) stenosis with or without PCA in order to evaluate the impact of PCA on the treatment. Material and methods. Consecutive patients operated on for ICA stenosis at our university hospital were included. Surgical treatment consisted in carotid endarterectomy (CEA) with patch plastic. Results. Of the 380 CEA performed between 2006 and 2012, PCA were found in six patients (1.6%). All patients with PCA were symptomatic vs. 54% of patients without PCA (p=0.035). Significantly less posterior collateral flow was present in patients with PCA (33%) compared to those without PCA (85%, p=0.01). Only two of the six patients with PCA were diagnosed prior to surgery, none was ligated intraoperatively. PCA was not associated with stroke and restenosis at long-term follow up. Conclusions. PCA are rarely diagnosed prior to surgery in patients with ICA stenosis and need not to be ligated during CEA
Źródło:
Polish Journal of Surgery; 2014, 86, 4; 166-171
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Usage of excimer laser in coronary and peripheral artery stenosis – analysis of its safety aspect
Autorzy:
Machowiec, P.A.
Reka, G.
Piecewicz-Szczesna, H.
Powiązania:
https://bibliotekanauki.pl/articles/2098216.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
excimer laser
stenosis
atherosclerosis
angioplasty
coronary artery disease
Opis:
Introduction. The technology of laser atherectomy has been known for about 20 years. Initial studies were not encouraging due to similar or lower efficacy compared to conventional angioplasty and greater complication rate. The introduction of new, low-profile catheters with high parameters of transmitted energy, a change in the procedure for performing angioplasty and the proper qualification of the lesions resulted in a reduction of adverse effects. Objective. The aim of the study was to present the current state of knowledge regarding the usage of excimer laser in coronary and peripheral arteries stenosis, its indications and contraindications as well as safety aspect. The article reviews 32 recent publications available on the PubMed and Google Scholar databases. Abbreviated description of the state of knowledge. The excimer laser emits ultraviolet energy and ablates the tissue in a vessel. The main indications for the use of the laser include: restenosis in the stent, ostial lesions, long, calcified lesions >20 mm and moderately and severely calcified lesions. There are isolated reports describing the use of ELCA in the treatment of acute coronary syndromes. Excimer laser also can be applied in a treatment of stenosis of peripheral arteries. Conclusion. Excimer laser coronary atherectomy is a safe and feasible technique for the treatment of ISR and is associated with a relatively low recurrent restenosis compared to scoring balloon dilatation alone. It is a very important and safe alternative to classic treatment methods, but further research assessing the usefulness of this procedure is required.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2020, 14, 4; 145-150
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lyell’s syndrome as a factor which escalates the risk of laryngotracheal stenosis and atresia after intubation
Autorzy:
Nowak, Nel
Kotowski, Michał
Sroczyński, Jakub
Szydłowski, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/1399653.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
Lyell’s Syndrome
subglottic stenosis
intubation
laryngotracheal reconstruction
Opis:
Toxic epidermal necrolysis (TEN) also known as Lyell’s Syndrome is a rare, acute hypersensitivity reaction characterized by cutaneous and mucosal necrosis covering more than 30% of surface [1]. Lyell’s syndrome is self limited, but potentially recurrent disease. The mortality for toxic epidermal necrolysis is approaching to 20–66% [2]. Lyell Syndrome is extremely rare diseases with an estimated overall incidence of 1–2 per 1 million inhabitants per year [3]. TEN is more common in women, it can occur at any age, whereas mostly occurs in older patients in their fifth to seventh decades. Death is caused either by sepsis or by respiratory distress which is either due to pneumoniae or damage to the linings of the airway [4]. Subglottic stenosis is the most common anomaly of larynx and trachea requiring tracheostomy in pediatric population [5]. Subglottic part of larynx is the narrowest section of laryngotracheal area of airways in childhood [5]. It is estimated that most of subglottic stenosis cases is acquired and developed as a result of injury caused by long-term use of endotracheal tube,only 5% of subglottic stenosis is congenital [6]. Latest improvements about construction of endotracheal tube and rules of procedures reduced frequency of subglottic stenosis to less than 1%. There are no statistics or medical reports about tracheal atresia caused by intubation or Lyell’s syndrome. This situation forced us to recognise Lyell’s syndrome and endotracheal intubation overlapping on each other as a cause of medical state of our 2 years old patient.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2019, 8, 3; 50-54
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Carotid access in Transcatheter Aortic Valve Implantation – an alternative to the gold standard. A single-center experience
Autorzy:
Stańska, Aleksandra
Wierzbowska, Aleksandra
Targoński, Radosław
Karolak, Wojciech
Mickiewicz, Agnieszka
Jaguszewski, Miłosz
Jagielak, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/895733.pdf
Data publikacji:
2020-01-09
Wydawca:
Gdański Uniwersytet Medyczny
Tematy:
transcatheter aortic valve implantation
aortic stenosis
carotid artery
elderly
Opis:
Background: Transfemoral access is regarded as the TAVI gold standard for the transcatheter aortic valve implantation (TAVI) procedure. However, other options for vascular access have developed in the last few years. Access via the carotid artery is one such alternative. Materials and methods: The study included 9 elderly patients who underwent transcarotid TAVI procedure at the Cardiac and Vascular Surgery Department of the Medical University of Gdańsk. Procedures were performed by a local Heart Team in a hybrid operating room under general anesthesia. Data was collected before the implantation and at discharge. Results: The mean patients’ age was 81 years of age (64-88) and the mean logistic EuroSCORE was 10.8 (7-16). Implantations were performed with 100% device success rate. Intra-operative valve-in-valve procedure was performed in one patient; there were no access-related and valve-related complications during the surgery. Post-procedural complications included minor bleeding, hematoma and pneumothorax. Echocardiographic parameters were significantly improving after the procedure. The mean hospital stay was 5 days (2-7 days). Conclusions: Transcatheter aortic valve implantation via the carotid artery appears to be safe and effective alternative to standard TAVI vascular access.
Źródło:
European Journal of Translational and Clinical Medicine; 2019, 2, 2; 80-84
2657-3148
2657-3156
Pojawia się w:
European Journal of Translational and Clinical Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aortic valve stenosis and its recent treatment techniques
Autorzy:
Witkowski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1916637.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
acquired aortic valve stenosis
transcatheter aortic valve implantation
comorbidities
Opis:
Aortic stenosis is the most common acquired valvular heart disease. Aortic stenosis has growing prevalence in people older than 75 years and natural course of disease is characterized by high mortality rate. According to epidemiological data all patients with aortic stenosis will die after 2–5 years from the first signs of disease if not undergo aortic valve replacement. However, even 40% of patients do not have surgery because of comorbidities related to advanced age. This was the main reason why in 80- and 90-ties of XX century there were intensive attempt to developed an alternative, less invasive treatment methodology for people with aortic stenosis and comorbidities and at high surgical risk. Transcatheter aortic valve implantation (TAVI) was introduced by Dr Alain Cribier in February 2nd, 2002 in Rouen, France. Since that day different aortic transcatheter bioprostheses were used in many randomized clinical trials comparing their safety and effectiveness versus surgical aortic valve replacement. Gradually, it became clear that in all older patients in all risk groups TAVI was equally or even more safe and effective than surgery. Complications after TAVI are relatively rare, but some of them are life-threatening. Heart Team plays a key role in patients selection to TAVI.
Źródło:
Nauka; 2020, 2
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Severe aortic stenosis in a patient with breast cancer
Autorzy:
Mańczak, Rafał
Wilk, Michał
Walaszkowska-Czyż, Anna
Florczyk, Michał
Szmit, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/1064894.pdf
Data publikacji:
2016
Wydawca:
Medical Education
Tematy:
anthracyclines
aortic stenosis
aortic valve replacement
breast cancer
echocardiography
Opis:
We present a case of 68-year-old female with severe symptomatic aortic stenosis and locally advanced breast cancer disqualified from mastectomy due to heart failure and from aortic valve replacement due to malignant neoplasm. The patient received neoadjuvant chemotherapy without anthracyclines. The aortic valve replacement was performed and then mastectomy and lymphadenectomy were made without hemodynamic complications. Adjuvant hormonotherapy was started. During 42 months of follow-up the patient remained free of recurrent cancer disease as well as no progression of heart failure was observed.
Źródło:
OncoReview; 2016, 6, 2; A49-56
2450-6125
Pojawia się w:
OncoReview
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long term results of the use of compression anastomosis clips (CAC) in gastrointestinal surgery – the first report
Autorzy:
Kuśnierz, Katarzyna
Lampe, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1395643.pdf
Data publikacji:
2015-06-01
Wydawca:
Index Copernicus International
Tematy:
compression anastomosis clip
gastrointestinal anastomoses
long term results
stenosis
Opis:
The aim of the study was to present the first long-term results on the clinical use of compression anastomosis clips (CAC) in upper and lower gastrointestinal tract anastomoses. Material and methods. The study included 50 patients who underwent anastomosis of the upper (n = 32) or lower GI tract (n = 18) with the use of CAC. In the period of 6‑7 months after the surgery, patients underwent endoscopic examination and computed tomography evaluation of the anastomosis. Each anastomosis was evaluated macro and microscopically. The width of anastomoses was evaluated using a 4-point-scale for grading stenosis. Results. Of the 50 patients who underwent anastomosis with compression anastomosis clip, 28 (56%) patients reported to the follow-up examination within 190‑209 days of the execution of the anastomosis. Among the 22 patients who did not report to the study, 18 (36%) patients died within 91‑154 days from the execution of the anastomosis (mean 122 days), 4 (8%) patients were impossible to contact after discharge from hospital. Two mild stenoses (I0) were diagnosed; 1 of them was found in the gastroenterostomy and 1 in Braun enteroenterostomy. Microscopic changes were diagnosed in 4 anastomoses (3 gastroenterostomies, 1 Braun enteroenterostomy). Anastomoses were well-formed and wide, scars in the line of anastomoses were thin. Conclusions. During the period of 6 months after the anastomoses performed using CAC have been formed, they were evaluated as unobstructed and functioning properly; therefore, they can be safely performed within the upper and lower gastrointestinal tract.
Źródło:
Polish Journal of Surgery; 2015, 87, 6; 295-300
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wrodzone przerostowe zwężenie odźwiernika (pylorostenoza) – prezentacja przypadku
Infantile hypertrophic pyloric stenosis – case report
Autorzy:
Wawrzyniak, Agata
Moes-Wójtowicz, Alicja
Kalicki, Bolesław
Jung, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1032443.pdf
Data publikacji:
2013
Wydawca:
Medical Communications
Tematy:
gastrointestinal motility
infantile hypertrophic pyloric stenosis
projectile vomiting
pyloric stenosis
pyloromiotomia
pyloromyotomy
wrodzone przerostowe zwężenie odźwiernika
pylorostenoza
chlustające
wymioty
motoryka przewodu pokarmowego
Opis:
Hypertrophic pyloric stenosis is one of the most common congenital defects in infants. The incidence of infantile hypertrophic pyloric stenosis (IHPS) is approximately two to five per 1000 births per year. IHPS is characterized by a progressive hypertrophy of pyloric muscle. Etiopathogenesis of this disease is still unknown. Abnormalities of ganglion cells development, increased local production of growth factors, altered nitric oxide production and genetic factors have been implicated in the pathogenesis. IHPS typically presents with progressive projectile vomiting leading to dehydration that usually commences between third and eighth week of life. Severe infection, disease with increased intracranial pressure, and metabolic diseases should be considered in the differential diagnosis. The classic hypochloremic, hypokalemic, metabolic alkalosis is not a common findings which may be due to more early detection rate of IHPS. Ultrasonography (US) is the standard diagnostic procedure. Pyloric thickness of 3 mm or higher and length of 15 mm or higher by ultrasonography is widely accepted as diagnostic criteria for pyloric stenosis. Pyloromyotomy by Ramstedt has been the standard treatment of IHPS, however laparoscopic pyloromyotomy is becoming more common. The paper presents a case of a 21-days-old newborn diagnosed due to intensive regurgitation, weakness and apathy
Wrodzone przerostowe zwężenie odźwiernika jest wadą anatomiczną, występującą z częstością 2–5 na 1000 żywych urodzeń. Przyczyną zwężenia odźwiernika jest przerost mięśni gładkich jego ściany. Etiopatogeneza tej jednostki chorobowej nadal nie jest znana. Obecnie teorie na ten temat skupiają się na zaburzeniach rozwoju komórek zwojowych w ścianie odźwiernika, zwiększonej miejscowej ekspresji czynników wzrostu, zaburzeniach miejscowej syntezy tlenku azotu oraz na czynnikach genetycznych. Pierwsze dolegliwości pojawiają się u dzieci zwykle między 3. a 8. tygodniem życia. Najczęstszą manifestacją kliniczną przerostowego zwężenia odźwiernika są chlustające wymioty bez domieszki żółci, doprowadzające do odwodnienia dziecka. Różnicując przyczyny choroby, należy wziąć pod uwagę ciężkie zakażenia wielonarządowe, choroby przebiegające ze wzmożonym ciśnieniem śródczaszkowym oraz choroby metaboliczne. Klasyczny obraz zaburzeń gospodarki kwasowo-zasadowej pod postacią zasadowicy metabolicznej hipokaliemicznej i hipochloremicznej występuje rzadko, co może być spowodowane coraz wcześniejszą wykrywalnością pylorostenozy. Złotym standardem w diagnostyce obrazowej jest ultrasonografia. Grubość ściany >3 mm i długość kanału odźwiernika >15 mm uznawane są za charakterystyczne dla wrodzonego przerostowego zwężenia odźwiernika. Powszechnie stosowaną metodą leczenia jest pyloromiotomia metodą Ramstedta, coraz częściej wykorzystuje się też metodę laparoskopową. W artykule przedstawiono przypadek 21-dniowego noworodka, diagnozowanego w Klinice z powodu intensywnego ulewania, osłabienia i apatii.
Źródło:
Pediatria i Medycyna Rodzinna; 2013, 9, 1; 87-90
1734-1531
2451-0742
Pojawia się w:
Pediatria i Medycyna Rodzinna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Return to work after spinal stenosis surgery and the patient’s quality of life
Autorzy:
Truszczyńska, Aleksandra
Rąpała, Kazimierz
Truszczyński, Olaf
Tarnowski, Adam
Łukawski, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/2179147.pdf
Data publikacji:
2013-06-01
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
return to work
spinal stenosis
quality of life
spine surgery
Opis:
Introduction: The return to work of patients who undergo spinal surgery poses important medical and social challenge. Objectives: 1) To establish whether patients who undergo spinal stenosis surgery later return to work. 2) To establish the patient's attitude towards employment. 3) To assess the quality of life of the patients and its influence on their attitude to work. Materials and Methods: The study population consisted of 58 patients aged from 21 to 80 years (the mean age was 52.33±14.12). There were 29 women (50%) and 29 men (50%) in the group. The patients' quality of life was measured by the use of the WHOQOL-BREF instrument. Individual interviews were conducted 3 to 8 months (a mean of 5.72 months ±1.6) after the surgery. Results: 1) Although 13 patients (22.3%) returned to work, 44 (75.9%) did not, these being manual workers of vocational secondary education. 2) Almost half of the patients (27 patients, i.e. 44%) intend to apply for disability pension, 16 patients (27.6%) consider themselves unfit to work, 22 patients (37.9%) do not feel like working again. 3) The quality of life of the patients decreased. Domain scores for the WHOQOL-BREF are transformed to a 0-100 scale. The mean physical health amounted to 60.67 (±16.31), the mean psychological health was 58.78 (±16.01), while the mean social relations with family and friends were 59.91 (±20.69), and the mean environment 59.62 (±12.48). Conclusions: 1) A total of 75% of the patients operated for lumbar spinal stenosis do not return to their preoperative work. Difficulties in returning to work and decreased quality of life are associated with female sex, lower-level education, hard physical work and low income. 2) Physical health, psychological health, social relations and environment decreased to the mean of approximately 60. 3) The quality of life of the patients who did return to work was similar to that of healthy people.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2013, 26, 3; 394-400
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rigid Bronchoscopy and Tracheostomy Compared to Repeated Dilatation of Tracheal Stenosis Prior to Tracheal Resection and Anastomosis; A Pilot Study
Autorzy:
Farahnak, Mohammad Reza
Moghimi, Mohammad Reza
Powiązania:
https://bibliotekanauki.pl/articles/1395726.pdf
Data publikacji:
2014-03-01
Wydawca:
Index Copernicus International
Tematy:
tracheal stenosis
resection and anastomosis of the trachea
rigid bronchoscopy
dilatation
Opis:
The aim of the study was to compare the results of tracheostomy of the site of stenosis and repeated RB & D in previously published papers. Material and methods. This prospective study examined the treatment of tracheal stenosis with tracheostomy at the site of stenosis. The recurrence rates, duration of hospitalization before and after tracheal resection, the number of tracheal rings removed, prognosis,and complications were evaluated. Results. It seems that a tracheostomy at the site of stenosis instead of repeated RB & D reduces the recurrence rate and duration of hospital stay, the need for a constant presence of a chest surgeon in the hospital, hospitalization costs. Also, the implementation of this method is possible in more centers. Conclusion. Tracheostomy at the site of tracheal stenosis can reduce the recurrence rate of stenosis, and prevent prolonged hospitalization, repeated anesthesia and inappropriate emergency tracheostomy.
Źródło:
Polish Journal of Surgery; 2014, 86, 3; 122-125
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of piezoelectric instruments in larynx surgery
Autorzy:
Jurek, Olga
Wójtowicz, Piotr
Krzeski, Antoni
Powiązania:
https://bibliotekanauki.pl/articles/1398485.pdf
Data publikacji:
2017
Wydawca:
Index Copernicus International
Tematy:
piezoelectric knife
cartilages of larynx
thyroidectomy
open partial laryngectomy
larynx stenosis
Opis:
Objective: The aim of the study was to estimate usability of the piezoelectric knife in larynx surgery. Prove that the piezoelectric staff can be used to do any different shape incision within the larynx cartilages. Material and methods: 35 patients hospitalized in our Department in 2014–2016 were enrolled in our study. 24 patients went vertical partial laryngectomy and 1 patient went horizontal partial laryngectomy because of larynx cancer. 5 patients went partial laryngectomy because of low stage of piriformis recess cancer. Piezoelectric staff was used to do thyroidectomy and resection of thyroid cartilage suspected of carcinomatosis infiltration. The rest 4 patients had done widening of larynx lumen due to larynx stenosis or slenderness. The piezoelectric tool was used to do different incision or resection within the larynx cartilages in case of widening lumen of the larynx. Results: The larynx cartilages, especially thyroid cartilage could be cut in different shapes using piezoelectric tools. The usage of this equipment causes the minimal loss and small destruction of local healthy tissues. Conclusions: The Piezoelectric instrument is useful instrument suit to operate within larynx cartilages. Exchangeable tip available in different shapes enables different resections of cartilages. Using the piezoelectric staff we can remove pathological tissue with minimal local destruction. Our observation shows that larynx operation with a usage of the piezoelectric knife is safe and effective. Current English literature does not describe usage piezoelectric tools in larynx surgery. It is essential to do more observation about that type of operations.
Źródło:
Polish Journal of Otolaryngology; 2017, 71, 5; 1-4
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Screening test for extracranial carotid lesions’ detection in patients of an outpatient vascular clinic
Autorzy:
Każmierski, Piotr
Pająk, Michał
Kruś-Hadała, Justyna
Jęckowski, Mateusz
Bogusiak, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1392080.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
atherosclerotic lesions
abdominal aorta aneurysm
carotid artery stenosis
screening tool
vascular surgery
Opis:
Purpose The objective of the study was to evaluate the frequency and severity of atherosclerotic lesions in extracranial sections of carotid arteries and to determine the level of the correlation between these lesions and symptoms of cerebral ischemia. Secondly, to identify the most common risk factors of ischaemic stroke occurrence in population of patients of vascular outpatient clinic. Material and Methods Prospective study was conducted on a group of 1,000 people (217 women and 783 men), aged 50 to 86 years, the average age was 62 years (± 9.95). Results Atherosclerotic lesions of carotid arteries were observed in 670 examined people (67%). In 63 cases (6.3%) carotid artery occlusion was revealed. Patients with symptomatic carotid artery stenosis more frequently were addicted to cigarettes and suffered from hypertension in comparison to asymptomatic group. A statistically significant correlation between the TIA or ischemic stroke and smoking were noticed, as well as between TIA/ischemic stroke and hypertension Conclusions Among patients with atherosclerosis of peripheral arteries atherosclerotic lesions in the extracranial carotid sections occur with a high frequency. Statistically significant differences in the incidence and severity of atherosclerotic lesions in the carotid arteries were observed in this group. A statistically significant correlation was revealed between the prevalence and severity of atherosclerosis in the carotid arteries in symptomatic patients and smoking and hypertension. Performing screening in patients with atherosclerosis of the abdominal aorta and/or lower limb arteries may detect significant carotid artery stenosis, requiring surgical intervention.
Źródło:
Polish Journal of Surgery; 2019, 91, 5; 5-11
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the safety and effects of pregabalin premedication on sleep quality, haemodynamic changes and pain in elderly patients with comorbidities undergoing spinal stenosis
Autorzy:
Kilic, E.T.
Powiązania:
https://bibliotekanauki.pl/articles/2098198.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
pregabalin
stenosis
intraoperative monitoring
analgesia
sleep quality
hemodynamic change
pain
elderly patient
Opis:
Objective. The aim of the study was to determine the effects of pregabalin premedication on preoperative sleep quality, intraoperative haemodynamic parameters, anesthesia consumption, blood loss, and postoperative pain control in patients over 65 years of age who had undergone surgery for spinal stenosis. The study also aimed to determine whether pregabalin premedication was safe for that age group and compare its effects with those of diazepam. Materials and method. The retrospective study was conducted in a single centre after approval by the local Ethics Committee. The study sample consisted of 95 patients over 65 years of age who had undergone surgery for spinal stenosis. The sample was divided into two groups: Pregabalin premedication patients (PG; n = 45) and Diazepam patients (D; n = 51). Demographic data, American Society of Anesthesiologists (ASA) scores, comorbidities, indications for operation, pre- operative sleep quality, total anaesthesia consumption during surgery, intraoperative haemodynamic parameters and blood loss, time to leaving the post- anaesthetic care unit (Aldrete’s > 9), postoperative visual analog pain scale (VAS), total fentanyl consumption via a patient-controlled analgesia (PCA) device, additional demand for analgesic, first mobilization, first oral intake, and side-effects were recorded. Results. Participants did not significantly differ by demographic data and duration of surgery. The PG group had better sleep quality, lower systolic and diastolic blood pressure, heart rate, intraoperative bleeding, postoperative VAS scores, additional analgesic consumption, and total fentanyl consumption via a PCA, and earlier mobilization and oral intake than the D group. No serious side-effects were observed in the groups. Conclusion. Pregabalin premedication is a safe and effective alternative medication for patients over 65 years of age.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2020, 14, 4; 111-116
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variations in morphology of lumbar spinal canal in degenerative discopathy
Zmienność morfologii lędźwiowego kanału kręgowego w chorobie zwyrodnieniowej krążka
Autorzy:
Wójcik, G.
Pocztarska, A.
Powiązania:
https://bibliotekanauki.pl/articles/2052140.pdf
Data publikacji:
2016
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
Computer tomography
Spinal stenosis
Intervertebral disc displacement
tomografia komputerowa
stenoza kanału kręgowego
dyskopatia
Opis:
Background. Lumbar spine, due to the large range of motion, is exposed to frequent occurrence of intervertebral disc disease. Discopathy initiates a series of changes as a result of a change in the morphology of the spinal canal. With age soft tissue undergoes degeneration as well as bone tissue, which favors the formation of the spinal canal stenosis. The aim of the study was to analyze and define the connections between the overload of intervertebral discs and changes in the volume of the spinal canal structures. Material and methods. A group of 60 patients was examined using a multi-row helical CT scanner. Results. Studies have shown that the shape of the spinal canal varies with age and reduces its capacity toward the sacral spine. There is the occurrence of three types of the spinal canal shape: oval, triangular and clover, which is the side effect of smoothing out of canal side pouches due to degenerative growth of zygapophysis. Conclusions. Based on the analysis it was found that discopathy took place more often in the triangular canal, and less often in the clover-shaped canal, which indicates that the prevalence of discopaty may be related to the capacity of the spinal canal.
Wprowadzenie. Kręgosłup lędźwiowy ze względu na duży zakres ruchomości narażony jest na częste występowanie choroby krążka międzykręgowego. Dyskopatia zapoczątkowuje szereg zmian, w wyniku których zmienia się morfologia kanału kręgowego. Wraz z wiekiem zwyrodnieniu ulegają tkanki miękkie oraz tkanka kostna, co sprzyja powstawaniu stenozy kanału kręgowego. Celem pracy było dokonanie analizy i określenie związków pomiędzy przeciążeniem krążków międzykręgowych, a zmianami objętościowymi struktur kanału kręgowego. Materiał i metody. Przebadano grupę 60 pacjentów z wykorzystaniem wielorzędowego spiralnego tomografu komputerowego. Wyniki. W badaniach wykazano, że kształt kanału kręgowego zmienia się wraz z wiekiem, a także zmniejsza swoją pojemność w kierunku odcinka krzyżowego. Stwierdzono występowanie trzech rodzajów kształtu kanału kręgowego: owalny, trójkątny oraz koniczyny, będącego efektem spłycenia zachyłków bocznych kanału z powodu zwyrodnieniowego rozrostu wyrostków stawowych. Wnioski. Na podstawie analiz stwierdzono, że dyskopatia częściej miała miejsce w kanale o kształcie trójkątnym, a najrzadziej w kanale o kształcie koniczyny, co wskazuje na to, iż częstość występowania dyskopatii może mieć związek z pojemnością kanału kręgowego.
Źródło:
Health Problems of Civilization; 2016, 10, 4; 47-53
2353-6942
2354-0265
Pojawia się w:
Health Problems of Civilization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Standardy badań ultrasonograficznych Polskiego Towarzystwa Ultrasonograficznego – aktualizacja. Badanie ultrasonograficzne tętnic nerkowych
Standards of the Polish Ultrasound Society – Update. Ultrasound examination of renal arteries
Autorzy:
Drelich-Zbroja, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1057920.pdf
Data publikacji:
2014
Wydawca:
Medical Communications
Tematy:
Doppler imaging
renal arteries
standard tests
stenosis
badanie dopplerowskie
standard badania
tętnice nerkowe
zwężenie
Opis:
This paper has been prepared on the basis of the Standards of the Polish Ultrasound Society and updated based on the latest reports from the relevant literature. The author presents a renal artery examination technique, patient preparation for the testing, limitations of the method, currently recommended proper blood flow standards and criteria for the diagnosis of significant stenoses. Renal artery ultrasound is performed using a 2–5 MHz probe, usually a convex 3.5 MHz one. The ultrasound machine must be equipped with the Doppler options for the evaluation of color coded blood flow and recording of the blood flow spectrum, including the triplex Doppler mode. Patients have to fast for at least eight hours before testing. Ultrasound always begins with the assessment of renal structure using the grayscale. Next, color coded blood flow imaging is used, followed by placing a sampling gate in the lumen of the target vessel to record the spectral image. The aim of renal artery ultrasound is to assess the course and position of arteries, evaluate blood flow parameters, as well as visualize possible changes: stenoses, occlusions, aneurysms, or arteriovenous fistulas. Blood flow velocity is always measured in a longitudinal projection/ longitudinal section of the vessel, after placing the sampling gate in the central part of the flowing bloodstream, which normally corresponds to the central part of the vascular cross-section. When diagnosing renal artery stenosis, it is necessary to know the nature of the blood flow and norms for flow parameters in healthy vessels. The spectrum of the blood flow velocity in renal arteries and their branches is a low resistance one. The following parameters are used to evaluate normal renal arteries and to identify the narrowed ones: Vmax, Vmin, RAR, AT, AI, RI and PI.
Praca została przygotowana na podstawie Standardów badań ultrasonograficznych Polskiego Towarzystwa Ultrasonograficznego i zaktualizowana na bazie najnowszych doniesień z piśmiennictwa. Przedstawiono technikę badania tętnic nerkowych, przygotowanie chorych do badania, ograniczenia metody, aktualne zalecane normy prawidłowego przepływu i kryteria diagnostyki znaczących zwężeń. Badania ultrasonograficzne tętnic nerkowych wykonuje się przy użyciu sondy o częstotliwości 2–5 MHz, najczęściej sondy konweksowej 3,5 MHz. Aparat ultrasonograficzny musi być wyposażony w opcje dopplerowskie, umożliwiające ocenę przepływu krwi kodowanego kolorem i zapis widma przepływu, w tym w trybie triplex. Pacjenci pozostają na czczo co najmniej przez osiem godzin przed badaniem. Badanie ultrasonograficzne zawsze rozpoczyna się od oceny nerek w skali szarości. Następnie wykorzystuje się opcję przepływu krwi kodowanego kolorem, na koniec zaś wstawia się do światła naczynia bramkę próbkującą, służącą do zapisu widma. Cele badania ultrasonograficznego tętnic nerkowych to ocena ich przebiegu i położenia, ocena parametrów przepływu krwi, a także uwidocznienie zmian: zwężenia, niedrożności, tętniaka, przetoki tętniczo-żylnej. Pomiary prędkości przepływu krwi zawsze wykonuje się w podłużnej projekcji/na przekroju podłużnym naczynia, po ustawieniu bramki w centralnej części strumienia przepływającej krwi, co w warunkach prawidłowych odpowiada środkowej części przekroju naczynia. W diagnostyce zwężenia tętnicy/tętnic nerkowych konieczna jest znajomość charakteru przepływu i norm parametrów przepływu w zdrowych naczyniach. Widmo prędkości przepływu krwi w tętnicach nerkowych i ich odgałęzieniach ma charakter niskooporowy. Do oceny prawidłowych tętnic nerkowych i rozpoznania tych zwężonych służą następujące parametry: Vmax, Vmin, RAR, AT, AI, RI i PI.
Źródło:
Journal of Ultrasonography; 2014, 14, 58; 297-305
2451-070X
Pojawia się w:
Journal of Ultrasonography
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of stenosis and dilatation on flow of blood mixed with suspended nanoparticles: a study using homotopy technique
Autorzy:
Sudha, T.
Umadevi, C.
Dhange, M.
Manna, S.
Misra, J. C.
Powiązania:
https://bibliotekanauki.pl/articles/1839885.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
przepływ krwi
zwężenie tętnicy
ciśnienie krwi
stenosis
dilatation
couple stress fluid
impedance
shear stress
Opis:
The paper deals with a theoretical study on blood flow in a stenosed segment of an artery, when blood is mixed with nano-particles. Blood is treated here as a couple stress fluid. Stenosis is known to impede blood flow and to be the cause of different cardiac diseases. Since the arterial wall is weakened due to arterial stenosis, it may lead to dilatation /aneurysm. The homotopy perturbation technique is employed to determine the solution to the problem for the case of mild stenosis. Analytical expressions for velocity, shear stress at the wall, pressure drop, and flow resistance are derived. The impact of different physical constants on the wall shear stress and impedance of the fluid is examined by numerical simulation. Streamline patterns of the nanofluid are investigated for different situations.
Źródło:
International Journal of Applied Mechanics and Engineering; 2021, 26, 1; 251-265
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heart rate turbulence in mild-to-moderate aortic stenosis in boxers
Autorzy:
Noszczyk-Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/32227.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heart rate turbulence
dog
aortic stenosis
Boxer breed
echocardiographic parameter
cardiac disease
animal disease
Opis:
Heart rate turbulence (HRT) is a new electrocardiographic parameter used in human medicine to predict the possibility of death in patients with cardiac diseases. There is no information about HRT in healthy dogs and those with cardiac diseases. The aim of the present study was to compare the HRT in healthy Boxers dogs with Boxers with mild and moderate subaortic stenosis (SAS), to disclose the relationship between HRT and specific echocardiographic parameters and to evaluate if HRT can be used as a prognostic value in dogs with aortic stenosis. The study revealed significantly lower values of turbulence onset (TO) and turbulence slope (TS) HRT dogs with SAS (TO = -0.76 ± 2.6, TS = 7.1 ± 3.21) in compared with healthy dogs (TO = -7.45 ± 9.72, TS = 14.33 ± 8.76). TO values correlated with the left ventricular mass (LVM)/body mass factor (r = 0,32; p = 0.048). Based on the results obtained it can be stated that dogs with SAS have a compromised baroreceptor response, which can influence the mortality of the animals with described cardiac defect.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of numerical simulations of blood flow through the segment of an artery in the presence of stenosis
Autorzy:
Shaikh, Fozia
Shaikh, Asif Ali
Hincal, Evren
Qureshi, Sania
Powiązania:
https://bibliotekanauki.pl/articles/24201504.pdf
Data publikacji:
2023
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
incompressible
isothermal
blood flow
stenosis
finite element method
izotermiczność
przepływ krwi
zwężenie
metoda elementów skończonych
Opis:
A mathematical model is developed to study the characteristics of blood flowing through an arterial segment in the presence of a single and a couple of stenoses. The governing equations accompanied by an appropriate choice of initial and boundary conditions are solved numerically by Taylor Galerkin’s time-stepping equation, and the numerical stability is checked. The pressure, velocity, and stream functions have been solved by Cholesky’s method. Furthermore, an in-depth study of the flow pattern reveals the separation of Reynolds number for the 30 and 50% blockage of single stenosis and 30% blockage of multi-stenosis. The present results predict the excess pressure drop across the stenosis site than it does for the inlet of the artery with single and multiple stenosis and the increase in the velocity is observed at the center of the artery.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2023, 22, 2; 49--61
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiation effect on MHD blood flow through a tapered porous stenosed artery with thermal and mass diffusion
Autorzy:
Sharma, M.
Gaur, R. K.
Sharma, B. K.
Powiązania:
https://bibliotekanauki.pl/articles/266195.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
przepływ krwi
reakcja chemiczna
magnetohydrodynamika
Soret and Dufour effects
MHD
blood flow
stenosis
chemical reaction
Opis:
A mathematical model for MHD blood flow through a stenosed artery with Soret and Dufour effects in the presence of thermal radiation has been studied. A uniform magnetic field is applied perpendicular to the porous surface. The governing non-linear partial differential equations have been transformed into linear partial differential equations, which are solved numerically by applying the explicit finite difference method. The numerical results are presented graphically in the form of velocity, temperature and concentration profiles. The effects of various parameters such as the Reynolds number, Hartmann number, radiation parameter, Schmidt number and Prandtl number, Soret and Dufour parameter on the velocity, temperature and concentration have been examined with the help of graphs. The present results have an important bearing on the therapeutic procedure of hyperthermia, particularly in understanding/regulating blood flow and heat transfer in capillaries.
Źródło:
International Journal of Applied Mechanics and Engineering; 2019, 24, 2; 411-423
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Postępowanie w zwężeniach tętnicy szyjnej wewnętrznej. Historia i teraźniejszość
Management of carotid stenosis. History and today
Autorzy:
Szczerbo-Trojanowska, Małgorzata
Jargiełło, Tomasz
Drelich-Zbroja, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1059214.pdf
Data publikacji:
2013
Wydawca:
Medical Communications
Tematy:
atherosclerosis
internal carotid artery
stenosis
stent
stroke
ultrasonography
badanie ultrasonograficzne
miażdżyca
tętnica szyjna wewnętrzna
udar
zwężenie
Opis:
Internal carotid stenosis constitutes a significant clinical challenge, since it is the cause of 20–25% of ischemic brain strokes. The management of the internal carotid stenosis for many years has been raising controversies amongst neurologists, vascular surgeons and interventional radiologists mainly due to the introduction of endovascular stenting as an alternative to surgical treatment. Its application, however, requires knowledge of specific selection criteria for this kind of treatment as well as of the methods of monitoring patients after stent implantation into the internal carotid artery. Duplex Doppler ultrasound examination is currently a basis for the diagnosis of the arterial stenosis of precranial segments of the carotid arteries. It allows a reliable assessment of not only the course and morphology of the walls, but also of the hemodynamics of blood flow. Interventional treatment is applicable in patients with internal carotid stenosis of ≥70%, which is accompanied by an increase of the systolic flow velocity above 200 cm/s and the end-diastolic velocity above 50–60 cm/s in the stenotic lumen. In most cases, such a diagnosis in duplex Doppler ultrasound examination does not require any confirmation by additional diagnostic methods and if neurological symptoms are also present, it constitutes a single indication for interventional treatment. When deciding about choice of surgical or endovascular method of treatment, the following factors are of crucial importance: morphology of atherosclerotic plaque, its size, echogenicity, homogeneity of its structure, its surface and outlines. By means of ultrasound examinations, patients can be monitored after endovascular stent implantation. They enable evaluation of the degree of stent patency and allow for an early detection of symptoms indicating stenosis recurrence or presence of in-stent thrombosis. When interpreting the findings of the US checkup, it is essential to refer to the initial examination performed in the first days after the procedure and the next ones conducted during the monitoring period.
Zwężenie światła tętnicy szyjnej wewnętrznej stanowi ważny problem kliniczny, ponieważ w 20–25% przypadków jest przyczyną udaru niedokrwiennego mózgu. Leczenie zwężeń tętnicy szyjnej wewnętrznej od wielu lat budzi kontrowersje wśród neurologów, chirurgów naczyniowych i radiologów zabiegowych, w dużej mierze w związku z wprowadzeniem metody wewnątrznaczyniowego stentowania jako alternatywy zabiegu chirurgicznego. Jej zastosowanie wymaga znajomości kryteriów kwalifikujących do tego leczenia, jak również sposobu monitorowania chorych po implantowaniu stentu do tętnicy szyjnej wewnętrznej. Ultrasonograficzne badanie duplex doppler stanowi obecnie podstawę rozpoznania zwężeń przedczaszkowych odcinków tętnic szyjnych. Pozwala na miarodajną ocenę nie tylko przebiegu i morfologii ścian tętnic, ale również hemodynamiki przepływu krwi. Leczenie zabiegowe jest stosowane u chorych ze zwężeniem tętnicy szyjnej wewnętrznej ≥70%, któremu towarzyszy wzrost maksymalnej prędkości przepływu krwi powyżej 200 cm/s i prędkości końcowo-rozkurczowej powyżej 50–60 cm/s w miejscu zwężenia. Rozpoznanie takiego zwężenia w badaniu duplex doppler w większości przypadków nie wymaga potwierdzenia innymi metodami diagnostycznymi i jeżeli dotyczy chorych z objawami neurologicznymi, może stanowić samodzielnie o wskazaniu do leczenia zabiegowego. Przy wyborze chirurgicznej lub wewnątrznaczyniowej metody leczenia istotne znaczenie mają morfologia blaszki miażdżycowej, jej wielkość, echogeniczność, jednorodność struktury, powierzchnia i obrysy. Przy pomocy badań ultrasonograficznych prowadzone jest również monitorowanie chorych po wewnątrznaczyniowym stentowaniu. Pozwalają one na ocenę drożności stentu i wczesne wykrycie objawów nawrotu zwężenia lub wystąpienia zakrzepicy w stencie. W interpretacji wyników badań kontrolnych bardzo ważna jest możliwość odniesienia się do badania wyjściowego, wykonanego w pierwszych dniach po zabiegu, oraz kolejnych przeprowadzonych w okresie monitorowania.
Źródło:
Journal of Ultrasonography; 2013, 13, 52; 6-20
2451-070X
Pojawia się w:
Journal of Ultrasonography
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluid-Structure Interaction Modeling of Aortic Valve Stenosis at Different Heart Rates
Autorzy:
Bahraseman, H. G.
Languri, E. M.
Yahyapourjalaly, N.
Espino, D. M.
Powiązania:
https://bibliotekanauki.pl/articles/307559.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
zastawka aortalna
diagnostyka chorób serca
stenoza
interakcja struktury płynu
aortic valve
cardiac output
stenosis
stroke volume
fluid-structure interaction
Opis:
Purpose: This paper proposes a model to measure the cardiac output and stroke volume at different aortic stenosis severities using a fluid–structure interaction (FSI) simulation at rest and during exercise. Methods: The geometry of the aortic valve is generated using echocardiographic imaging. An Arbitrary Lagrangian–Eulerian mesh was generated in order to perform the FSI simulations. Pressure loads on ventricular and aortic sides were applied as boundary conditions. Results: FSI modeling results for the increment rate of cardiac output and stroke volume to heart rate, were about 58.6% and –14%, respectively, at each different stenosis severity. The mean gradient of curves of cardiac output and stroke volume to stenosis severity were reduced by 57% and 48%, respectively, when stenosis severity varied from healthy to critical stenosis. Conclusions: Results of this paper confirm the promising potential of computational modeling capabilities for clinical diagnosis and measurements to predict stenosed aortic valve parameters including cardiac output and stroke volume at different heart rates.
Źródło:
Acta of Bioengineering and Biomechanics; 2016, 18, 3; 11-20
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jak rożnicować wymioty u noworodkow i niemowląt? Część III. Chirurgiczne przyczyny wymiotow
How to differentiate vomiting in neonates and infants? Part III. Surgical causes of vomiting
Autorzy:
Cywińska-Bernas, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1033444.pdf
Data publikacji:
2014
Wydawca:
Medical Communications
Tematy:
digestive system abnormalities
infant
intussusception
newborn
pyloric stenosis
vomiting
wymioty
noworodek
niemowlę
wady układu pokarmowego
przerostowe zwężenie odźwiernika
wgłobienie
Opis:
Vomiting in newborns and infants is an important clinical problem. It can be a sign of serious illnesses, life-threatening conditions and require urgent diagnosis and treatment. Knowledge of the specific causes of vomiting in the first year of life provide the diagnosis. Most of surgical causes of vomiting is associated with conditions that cause occlusion of the gastrointestinal tract. Vomiting newborn should be suspected of congenital digestive tract malformation, especially if early onset of symptoms are observed. In infancy one should remember about pyloric stenosis and intussusception. In both groups vomiting can be a symptom of incarcerated hernia or Hirschsprung disease. Vomiting newborns or infants require careful assessment, diagnosis and finding the optimal treatment. Differential diagnosis of vomiting and identification life-threatening diseases that require urgent surgical interventions could be a challenge.
Wymioty noworodków i niemowląt to istotny problem kliniczny. Mogą być oznaką ciężkich chorób, stanów zagrażających życiu i wymagać diagnostyki w trybie nagłym. Znajomość specyfiki przyczyn zwracania pokarmu w 1. roku życia pozwala na ustalenie rozpoznania. Spośród chirurgicznych czynników wywołujących wymioty większość związana jest z zaburzeniami drożności przewodu pokarmowego. Diagnozując wymiotujące noworodki,należy brać pod uwagę wrodzone wady przewodu pokarmowego, na które wskazuje wczesne wystąpienie objawów, u niemowląt zaś powinno się uwzględnić zwężenie odźwiernika i wgłobienie. W obu grupach wymioty mogą być objawem uwięźnięcia przepukliny czy choroby Hirschsprunga. W przypadku wymiotujących noworodków i niemowląt konieczna jest uważna ocena oraz ustalenie rozpoznania i optymalnego sposobu leczenia. Wyzwanie stanowi różnicowanie przyczyn wymiotów i wykrycie chorób będących stanami zagrożenia życia, wymagających interwencji chirurgicznej w trybie pilnym.
Źródło:
Pediatria i Medycyna Rodzinna; 2014, 10, 1; 45-49
1734-1531
2451-0742
Pojawia się w:
Pediatria i Medycyna Rodzinna
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 33

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