Temat: malformations - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Treatment of Extensive Arteriovenous Malformations in the Head
Autorzy:: Wójcicki, Piotr
Wójcicka, Karolina
Powiązania:: https://bibliotekanauki.pl/articles/1396047.pdf
Data publikacji:: 2013-02-01
Wydawca:: Index Copernicus International
Tematy:: arteriovenous malformations
vascular malformations
vascular tumor.
Opis:: Vascular tumours and malformations are revealed at birth and do not subside. The aim of the study was to present the principles and outcomes of treatment of patients with arteriovenous malformations treated at the Clinic of Plastic Surgery in Polanica Zdrój in the years 2009- 2010. Only one patient, who had not been treated previously, had the lesion on the cheek removed subtotally and the defect was closed by means of local repair. In the remaining patients, with primary lesions located in the auricle, scalp, and cheeks, the indications for operation included recurrent infections, ulcerations, and first of all, massive, life-threatening haemorrhages. All the patients, treated for many years in other centres, had underwent numerous resection procedures, vessel ligations, embolizations and obliterations. The patients were followed up after the surgery every 6 months. The therapy aim was achieved in all the patients. Vascular tumours were removed totally or subtotally, the lost structures were reconstructed and permanent healing of the wound was achieved. None of the patients developed recurrence of the disease, infection, or bleeding.
Źródło:: Polish Journal of Surgery; 2013, 85, 2; 83-89
0032-373X
2299-2847
Pojawia się w:: Polish Journal of Surgery
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Unilateral cochleo-vestibular nerve and internal auditory canal malformations
Autorzy:: Kaźmierczak, Henryk
Kaźmierczak, Wojciech
Pawlak-Osińska, Katarzyna
Osiński, Stanisław
Powiązania:: https://bibliotekanauki.pl/articles/1399734.pdf
Data publikacji:: 2018
Wydawca:: Index Copernicus International
Tematy:: internal auditory canal malformations
unilateral cochleo-vestibular nerve malformations
Opis:: A case report of unusual one-sided developmental disorders of the vestibular and cochlear nerve and the internal auditory canal and difficulty of diagnostic process.
Źródło:: Polski Przegląd Otorynolaryngologiczny; 2018, 7, 1; 59-64
2084-5308
2300-7338
Pojawia się w:: Polski Przegląd Otorynolaryngologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Antler malformations of cervidae species in Opole Voivodeship
Deformacje poroża u jeleniowatych w województwie opolskim
Autorzy:: Oloś, G.
Powiązania:: https://bibliotekanauki.pl/articles/388739.pdf
Data publikacji:: 2017
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: antler malformations
cervidae
myłkus
jeleniowate poroże
Opis:: Hunting Law regulations strictly determines which males of quarry species may be harvested during the season. The age and the antlers of the individual play here an important role. The exceptions are the individuals with malformed and long spiked antlers, that is in a form significantly different from the desirable forms described in guidelines by the Chief Hunting Council. Anomalies in shape, structure and size of antlers are obligatory condition for harvesting the individual. It is generally accepted that such individuals are weaker, less valuable, have defective genes, are sick or injured, and are dangerous for conspecific during the rut. The scientific explanations for the development of an antler abnormalities point out many different factors, including the environmental ones. For many years antlers are used to determine the environmental pollution by heavy metals accumulated in it’s bone tissue what gives precise annul data. The aim of this work was to check whether the frequency of antlers deformation in cervidae species present in the Opole Voivodeship correlate in any way with ontogenetic features (age and body weight), population features (density and size of population) and environmental factors (woodiness, competition). Results could set new directions in researches for causes of antler malformations in cervidae family.
Regulacje Prawa Łowieckiego ściśle określają, które samce zwierzyny płowej mogą zostać pozyskane w danym sezonie. Kluczową rolę odgrywają tu wiek oraz forma poroża danego osobnika. Wyjątek stanowi ą tzw. „myłkusy” oraz „szydlarze”, czyli osobniki mające poroże w formie istotnie odbiegającej od wytycznych określanych przez Naczelną Radę Łowiecką. Anomalie w kształcie, budowie i rozmiarach poroża stanowią obligatoryjny warunek do pozyskania mającego je osobnika, którego uważa się za niepożądanego w łowisku. Powszechnie uznaje się takie osobniki za słabsze, mniej wartościowe, mające wadliwe geny, chore lub zranione, a także niebezpieczne dla innych w okresie rui. Naukowe uzasadnienia powstawania anomalii w porożu jeleniowatych wskazują na wiele różnych czynników, w tym środowiskowych. W ostatnich latach podjęto również prace nad określaniem skażenia środowiska bytowania jeleni metalami ciężkim w oparciu o oznaczanie tych pierwiastków w rogowej tkance poroża, które w cyklu rocznym jest nakładane i następnie zrzucane. Celem tej pracy było sprawdzenie, czy częstość występowania deformacji w porożu u jeleniowatych na terenie województwa opolskiego w jakikolwiek sposób koreluje z cechami osobniczymi (wiek oraz waga tuszy), wewnątrzpopulacyjnymi (zagęszczenie i wielkość populacji) oraz środowiskowymi (lesistość, konkurencja). Wyniki mogą wyznaczyć nowe kierunki w badaniach nad przyczynami powstawania deformacji w porożu jeleniowatych.
Źródło:: Ecological Chemistry and Engineering. A; 2017, 24, 1; 131-140
1898-6188
2084-4530
Pojawia się w:: Ecological Chemistry and Engineering. A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Mucosal necrosis of the palate after embolization for labial arterioveinous malformation
Autorzy:: Arnal Etienne, Andrea
Magremanne, Michèle
Powiązania:: https://bibliotekanauki.pl/articles/2129220.pdf
Data publikacji:: 2021-08-22
Wydawca:: Presses Universitaires de Louvain
Tematy:: arteriovenous malformations
embolization complication
palate
necrosis
Opis:: Objective: Cervico-facial arteriovenous malformations (AVMs) are complex and rare vascular lesions, and present in 0.1% of the population. Of traumatic or congenital origin, they are characterized by variable growth, and their complications can be disfiguring and potentially fatal. The treatment of choice is embolization followed by surgery if necessary. The main complications are recurrence and postoperative bleeding. Case report: We report the rare case of a 59-year-old female patient who underwent embolization of a right upper labial and jugal AVM, followed by complete necrosis of the right hemi-palatal mucosa associated with dental mobility and pain. Follow-up at 6 months showed complete reepithelialisation of the palate. Conclusions: Soft tissue necrosis after AVM embolization is a rare event and is more commonly described after embolization for epistaxis. The evolution is generally favourable within a few weeks.
Źródło:: Nemesis. Negative Effects in Medical Sciences Oral and Maxillofacial Surgery; 2021, 19, 1; 1-10
2593-3604
Pojawia się w:: Nemesis. Negative Effects in Medical Sciences Oral and Maxillofacial Surgery
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: STROKE FOLLOWING PERIPHERAL ARTERIO VENIUS MALFORMATION ALCOHOL EMBOLIZATION – SHOULD WE LOOK FOR PERSISTED FORAMEN OVALE IN ADVANCE?
Autorzy:: Błaż, Michał
Ostrowska, Monika
Zasada, Jakub
Maciąg, Rafał
Komar, Monika
Michalski, Michał
Trystuła, Mariusz
Powiązania:: https://bibliotekanauki.pl/articles/2138176.pdf
Data publikacji:: 2022-03-31
Wydawca:: Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:: stroke
arteriovenous malformations
foramen ovale
embolization
Opis:: Stroke due to paradoxical embolism can be a complication of certain peripheral venous procedures in patients with coexisting patent foramen ovale. There is an established link between venous sclerotherapy and stroke, however there are no known reports of this complication following peripheral arteriovenous embolization.We present a case of a 36-year- old woman who experienced symptoms of disorientation and apraxia following a hypoxic event during percutaneous alcohol embolization of a large arteriovenous malformation in her right gluteal region. An MRI scan revealed multiple foci of restricted diffusion in both cerebral hemispheres corresponding to acute ischemic stroke lesions. As the subsequent work-up revealed patent foramen ovale, we speculate on the pathomechanism of stroke and conclude with a recommendation to screen for patent foramen ovale in patients undergoing peripheral venous procedures including arteriovenous malformation embolization.
Źródło:: Acta Neuropsychologica; 2022, 20(1); 81-85
1730-7503
2084-4298
Pojawia się w:: Acta Neuropsychologica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Surgical treatment of hemangiomas and arteriovenous malformations in upper extermity
Autorzy:: Jabłecki, Jerzy
Elsaftawy, Ahmed
Kaczmarzyk, Janusz
Kaczmarzyk, Leszek
Powiązania:: https://bibliotekanauki.pl/articles/1396101.pdf
Data publikacji:: 2013-03-01
Wydawca:: Index Copernicus International
Tematy:: hemangiomas
vascular malformations
arteriovenous fistula
surgical treatment
Opis:: Hemangiomas belong to one of the most common type of tumors occurring in childhood. They are benign and often do not require any treatment, with the tendency to. frequently disappearing spontaneously at the age of 5-7 years. The tumors usually develop in the head and neck area, whereas vascular malformations (AVMs) are rare congenital anomalies, which may occur anywhere. In upper limb, they may amount to 30-60% of cases. It is common for these changes not to require any surgical treatment. In case they do, the main indications for such treatment of upper limb AVMs may be as follows: signs of compression of the peripheral nerves, limited mobility of the fingers because of the tumor, which entails difficulties in the functioning of the whole arm, pain and aesthetic considerations. Aim of the study was to present the results of surgical treatment of vascular tumors (hemangiomas and AVMs) in the upper limb that was applied in our department, as well as a broader discussion on epidemiology, diagnosis, and treatment of these changes. Material and methods. In 2003-2011 period we treated 11 patients aged 24-39, suffering from vascular tumors (hemangiomas / vascular malformations) in the upper limb; the group included 3 men and 8 women. In this group we diagnosed 2 cases with arm hemangiomas, 2 cases of intramuscular hemangiomas of the forearm, 2 cases of hemangiomas in metacarpal area, 2 cases of AVMs of the finger and metacarpal area, and 4 cases of isolated vascular malformations (mainly arteriovenous malformations) of the fingers. All preparations were examined histologically. Results. No complications or recurrence were found in 7 cases, recurrences of AVMs were observed in 4 patients with finger changes. In one patient with AVMs of the index finger, we observed a treble recurrence, which severely impaired functioning of his hand. We eventually suggested to him the finger amputation, to which the patient agreed Conclusions. Upper extremity is a rare location of hemangiomas and other vascular malformations requiring surgery. hemangiomas are more common in women, and the occurrence of AVMs in both males and females is similar. Surgical treatment of hemangiomas and AVMs of the upper extremities is doubtlessly an arduous task, which calls for great microsurgical skills.
Źródło:: Polish Journal of Surgery; 2013, 85, 3; 107-113
0032-373X
2299-2847
Pojawia się w:: Polish Journal of Surgery
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Inner ear malformations – overview, current classifications, challenges in management
Autorzy:: Haber, Karolina
Konopka, Wiesław
Amernik, Katarzyna
Mierzwiński, Józef
Powiązania:: https://bibliotekanauki.pl/articles/1399247.pdf
Data publikacji:: 2020
Wydawca:: Index Copernicus International
Tematy:: brainstem implant
cochlear implant
imaging tests
inner ear malformations
Opis:: Introduction: Some patients with profound sensorineural hearing loss have inner ear malformations. Initially, those were believed to be a contradiction to cochlear implantation. However, with the advance of cochlear implant surgery and technology, it has become possible to treat this group of patients. However, cochlear implantation in the case of inner ear malformations can be associated with numerous surgical difficulties and possible complications. Purpose: The paper aims to present: (1) modern classification of inner ear malformations, (2) surgical and clinical challenges related to all types of malformations, and (3) cases of inner ear malformations identified in the authors’ centers. Material and methods: Of 111 children enrolled for cochlear implantation in three clinical centers, a group of patients with malformations of the inner ear was selected. We analyzed: preoperative imaging studies of patients performed prior to cochlear implantation, hearing tests, surgical protocols of cochlear implantation, results of intraoperative measurements and intraoperative imaging studies. We discuss what is currently believed to be the leading classification of inner ear malformations. Results: In 19/111 (17%) children, we diagnosed severe inner ear malformations in 35 ears. In 13/19 (68%) patients the malfor mations were bilateral and symmetrical, while 6/19 (32%) patients had different malformations in the right and left ear or one-sided malformation. All inner ear malformations described in the classification were found, except for rudimentary oto cyst. The most common are: cochlear hypoplasia, incomplete partition, and enlarged vestibular aqueduct. Discussion: Severe inner ear malformations are a major diagnostic and clinical challenge in children qualified for cochlear implantation. They can preclude or considerably complicate cochlear implantation and postoperative care. Inner ear malformations are found in imaging studies even in 20 to 30% of patients with profound hearing loss.
Źródło:: Polski Przegląd Otorynolaryngologiczny; 2020, 9, 3; 1-11
2084-5308
2300-7338
Pojawia się w:: Polski Przegląd Otorynolaryngologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Neuro-Edu-Techno (NET) Approach in Studies on Educational Therapy for Developmental Delays: A Case of Focal Cortical Dysplasia
Podejście Neuro-Edu-Techno (NET) w badaniach nad terapią pedagogiczną: Kazus ogniskowej dysplazji korowej
Autorzy:: Przybyła, Tomasz
Klichowski, Michał
Powiązania:: https://bibliotekanauki.pl/articles/919891.pdf
Data publikacji:: 2019-03-15
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: brain malformations
FCD-students
ICT-therapy
developmental retardation
Neuro-MIG
Opis:: Focal cortical dysplasia (FCD) may vary in size and be located in any area of the human brain. In general, FCD causes epilepsy and it is usually associated with mental retardation. Even in case of epilepsy various types of treatment are identified, there is no complete educational therapy for developmental delays caused by FCD. Moreover, there are no works that synthetically discuss the possibilities of supporting such therapy by technology-based solutions. Method: Here, we investigate this issue using a systematic literature review. Results: Despite the fact that we were dealing with the lack of studies on technology-based educational therapy for students with cognitive problems due to FCD, we point out several potential benefits of this type of assistance. Discussion and conclusions: Our study clearly demonstrates that technology may strongly enhance educational therapy for developmental delays caused by focal cortical dysplasia and that there is a need for further neuro-edu-techno (NET) studies on this topic.
Źródło:: Studia Edukacyjne; 2019, 52; 97-106
1233-6688
Pojawia się w:: Studia Edukacyjne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Pesticide consumption, central nervous system and cardiovascular congenital malformations in the South and Southeast region of Brazil
Autorzy:: Cremonese, Cleber
Freire, Carmen
Camargo, Ariana
Lima, Jaime
Koifman, Sergio
Meyer, Armando
Powiązania:: https://bibliotekanauki.pl/articles/2178856.pdf
Data publikacji:: 2014-06-21
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: pesticides
congenital malformations
central nervous system
cardiovascular system
ecological study
Opis:: Objectives: To investigate the association between per capita pesticide consumption and infant mortality rates from CNS and CVS congenital malformations in microregions in the South and Southeast Region of Brazil. Material and Methods: An ecological study was conducted using data on pesticide expenditure in 1985 and 1996, and deaths caused by CNS and CVS malformations in infants under 1 year old in 1986-1990 and 1997-2001, respectively. Per capita pesticide consumption and infant mortality rates were calculated for each microregion. Microregions were grouped according to quintiles of pesticide consumption, taking the first quintile as reference. The association between pesticide consumption and infant mortality was examined by calculating Spearman correlation coefficients (r) and mortality rate ratios (RR), stratifying by gender and type of microregion (urban or rural). Results: Significant and positive correlations between per capita pesticide consumption and rates of mortality due to CNS and CVS defects were observed in rural but not urban microregions. In general, mortality RRs for the 2 types of malformations in rural microregions were significantly higher in each quintile of pesticide consumption compared to the lowest quintile in the 2 study periods, with elevations ranging between 10% and 30%. Likewise, mortality RRs in these microregions showed significant trends of increase across quintiles of pesticide consumption in both study periods. In urban areas, however, mortality RRs from both CNS and CVS malformations were weak and not statistically significant, and a trend of increase of mortality with increasing pesticide usage was not observed. Conclusions: The results show the relevance of pesticide exposure in rural areas with intense agricultural activity, suggesting that such prenatal exposures may be related with the occurrence of certain congenital defects.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2014, 27, 3; 474-486
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Geospatial clustering of gastroschisis in Poland: Data from the Polish Registry of Congenital Malformations (PRCM)
Autorzy:: Materna-Kiryluk, Anna
Więckowska, Barbara
Wiśniewska, Katarzyna
Czyżewska, Małgorzata
Godula-Stuglik, Urszula
Baumert, Małgorzata
Margol, Ryszard
Latos-Bieleńska, Anna
Powiązania:: https://bibliotekanauki.pl/articles/2177442.pdf
Data publikacji:: 2015-12-09
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: gastroschisis
Omphalocele
congenital malformations
scan statistic
spatial and temporal clusters
epidemiology
Opis:: Objectives The aims of this study were: to evaluate the prevalence of abdominal wall defects in the Polish population, to analyze temporal trends in the prevalence, to identify areas (clusters) of high risk of abdominal wall defects, and to characterize, with respect to epidemiology, children with abdominal wall defects and their mothers in the area defined as a cluster. Material and Methods We used isolated congenital malformations (gastroschisis Q79.3 and omphalocele Q79.2 according to the International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10, the extended version)) data reported to the Polish Registry of Congenital Malformations (PRCM) over the years 1998– 2008 based on the population of 2 362 502 live births. We analyzed 11 administrative regions of Poland with complete epidemiologic data. Results Of 11 regions, 2 had a significantly higher standardized prevalence of isolated gastroschisis: Dolnośląskie (1.7/10 000 live births, p = 0.0052) and Śląskie (1.9/10 000 live births, p < 0.0001). Furthermore, within the region of Dolnośląskie, we defined a clear prevalence of the isolated gastroschisis cluster (p = 0.023). We comprehensively examined demographic and socio-economic risk factors for abdominal wall defects in this area, and we found that these factors failed to account for the cluster. Conclusions We identified a distinct prevalence cluster for isolated gastroschisis, although a precise reason for the disease clustering in this region remains unknown. Cluster identification enables more focused research aimed at identification of specific factors with teratogenic effects.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2016, 29, 3; 461-470
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Cerebral cavernous malformations: epidemiological, clinical and diagnostic imaging aspects
Autorzy:: Czekalska, I.
Tyrakowska-Dadełło, Z.
Werel, P.
Tarasów, E.
Grodzka, E.
Powiązania:: https://bibliotekanauki.pl/articles/1918780.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Medyczny w Białymstoku
Tematy:: CNS vascular malformations
cerebral cavernous malformation
computed tomography
magnetic resonance imaging
Opis:: Introduction: Cerebral cavernous malformations (CCMs) are one of the most common vascular malformations of the central nervous system. Symptoms of CCMs are not typical; the disease can be asymptomatic or be manifested by a wide range of neurological symptoms. Purpose: To evaluate chosen epidemiologic and clinical issues as well as advanced imaging diagnostics of CCMs in computed tomography and magnetic resonance imaging. Materials and methods: The study was based on retrospective analysis of CT and MRI examinations from the 5 years period. The analysis covered 61 persons, 29 males, and 32 females. The CCMs were diagnosed based on MRI examination in 43 patients and CT in 13 patients. Results: The rate of CCMs occurrence in own material was 0.2%. Single lesions were present in 90.2%, while multiple in 9.8% of cases. Supratentorial CCMs were observed in 77% of cases whereas subtentorial in 23%. Mean size of CCMs in the supra- and subtentorial area equaled 10.6±6.3 and 15.1±5.8 mm, respectively (p<0.05). Clinical symptoms occurred in 65.8% of patients, most frequently in patients with CCMs above 5 mm or with subtentorial lesions. All CCMs were hyperdense in CT images, with calcifications in 13.1%. In MRI, malformations showed diverse intensity of the central part with peripheral low-intensity rim of hemosiderine deposits in T2-weighted images. Conclusions: The clinical symptoms occur in most cases of CCMs. These patients require periodic follow-up MRI examinations, specifically those with haemorrhagic incidents or epileptic seizures, with large size or subtentorial CCMs.
Źródło:: Progress in Health Sciences; 2018, 8(2); 8-17
2083-1617
Pojawia się w:: Progress in Health Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: The role of preoperative imaging for auditory implants in children
Autorzy:: Haber, Karolina
Burzyńska-Makuch, Małgorzata
Mierzwiński, Józef
Powiązania:: https://bibliotekanauki.pl/articles/1397250.pdf
Data publikacji:: 2021
Wydawca:: Index Copernicus International
Tematy:: auditory brainstem implant
cochlear implant
cochlear ossification
imaging studies
inner ear malformations
Opis:: Introduction: Preoperative imaging, besides audiological evaluation, plays a major role in evaluation of candidacy for auditory implants, and in particular cochlear implants. It is essential to assess whether the basic criteria necessary for implantation are met. Diagnostic imaging is crucial not only in determining candidacy, but also determining the feasibility of cochlear implantation as it allow to anticipate surgical difficulties which could preclude or complicate the implantation of the device. The aim of the study is to present the protocol for the evaluation of preoperative imaging studies with particular focus on the factors potentially affecting clinical decisions in children qualified for cochlear implantation. Material and method: Preoperative imaging studies of 111 children performed prior to cochlear implantation were analyzed: high-resolution computed tomography (HRCT) of temporal bones and MRI. The assessment was made according to the presented protocol. Results: Pathologies and anomalies identified during the assessment of preoperative imaging studies significantly altered clinical decisions in 30% of patients. In the study group, in 17% of patients inner ear malformations were identified. 2.7% of children were disqualified from a cochlear implantation due to severe congenital inner ear malformations. 9% of the patients have had bacterial meningitis. In 50% of them difficulties related to complete or progressive cochlear ossification occurred. In 4.5% of patients less common surgical approaches other than mastoidectomy with a posterior tympanotomy were applied. Discussion: Preoperative imaging allow for the identification of significant pathologies and anomalies affecting qualification decisions and further treatment. HRCT and MRI are complementary to each other for preoperative imaging. The two modalities in combination allow accurate and optimal evaluation of the anatomical structures prior to implantation. Inner ear malformations and cochlear ossification following meningitis are relatively frequently encountered in children qualified for a cochlear implant.
Źródło:: Polish Journal of Otolaryngology; 2021, 75, 1; 23-35
0030-6657
2300-8423
Pojawia się w:: Polish Journal of Otolaryngology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Exposure of whitefish (Coregonus lavaretus) eggs to native or chemically spiked sediments from Lake Thun does not lead to abnormal gonad development
Autorzy:: Bernet, D.
Wahli, T.
Gerecke, A.
Segner, H.
Powiązania:: https://bibliotekanauki.pl/articles/363156.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: rozwój embrionalny
wady gonad
zanieczyszczenie osadów
sieja
embryonic development
gonad malformations
sediment-borne contaminants
whitefish
Opis:: A high number of whitefish, Coregonus lavaretus, from Lake Thun, Switzerland, display gonad malformations. We tested the hypothesis that exposure to sediment-borne contaminants during the embryonic life results in the development of malformed gonads later in ontogeny. The investigated contaminants were 2,4,6-trinitrotoluene (TNT), which may leak from residues in the lake sediments as consequence of former ammunition dumping into Lake Thun, as well as sulfonated naphthalene formaldehyde condensates (SNFC), which are introduced into the lake from wastewater disposals of a nearby tunnel construction site. Experimentally, whitefish eggs were exposed during 52 days from fertilization until hatching to a) an artificial sediment (control), b) an artificial sediment spiked with TNT (0.5mg*kg-1 dry weight), c) SNFC compounds dissolved in water (3µg*l-1 of each naphthalene-1-sulphonate, naphthalene-2-sulphonate, naphthalene-1,5-disulphonate, naphthalene-2,7-disulphonate), and d) sediment from Lake Thun sampled in an ammunition dumping area. To mimic in situ exposure of the eggs to the sediment-water-interface under laboratory conditions, we developed a novel contact incubation technique. After hatching, fish were reared in tap water for three years until they reached sexual maturity, and were then examined for the presence of gonad malformations. No malformations were observed in the control, in the TNT and SNFC treatment groups. In fish incubated during the embryonic stage on Lake Thun sediment, 2 out of 117 adult males (1.7%) displayed malformed gonads, which is significantly lower than levels of gonad malformations in wild whitefish from Lake Thun (on average 29% in males, 12% in females). The results from our experiment provide no evidence that sediment contamination with TNT or SNFC compounds is a causative factor for the induction of gonad malformations in Lake Thun whitefish.
Źródło:: Environmental Biotechnology; 2011, 7, 1; 17-29
1734-4964
Pojawia się w:: Environmental Biotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Stridor as one of the symptoms of 5p deletion syndrome in a five-month-old child
Autorzy:: Malicka, Katarzyna
Grochowska-Bohatyrewicz, Ewa
Pietrzyk, Aleksandra
Iwona, Stecewicz
Jaworowska, Ewa
Giżewska, Maria
Powiązania:: https://bibliotekanauki.pl/articles/1400400.pdf
Data publikacji:: 2017
Wydawca:: Index Copernicus International
Tematy:: 5p deletion syndrome
5p minus syndrom
Cri du Chat syndrome
stridor
larynx malformations
laryngeal cleft
Opis:: The 5p deletion syndrome (5p-, Cri-du-chat syndrome, CdCS) is a genetic disorder which results from a partial deletion of the short arm of chromosome 5. It was first described by Lejeune et al. in 1963. The incidence ranges from 1:15 000 to 1:50 000 live births. The 5p- is usually diagnosed in the first days of life because of the characteristic monotonous high pitched cat-like cry and relatively constant dysmorphic features. Other symptoms often present in the neonatal period include low birth weight, muscle hypotonia, asphyxia and feeding difficulties due to impaired suction and swallowing, which may all lead to failure to thrive. Organ malformations, with various larynx abnormalities, although not very frequent, can also be present. Symptoms that are prevalent in later life include severe motor delay and intellectual disability with significant speech impairment, as well as behavioral problems. The case report presents a female infant in her 5th month of life in whom, despite the typical symptoms of 5p-, stridor and episodes of choking were the main problems. Laryngotracheal endoscopy revealed the type I laryngeal cleft. Genetic analysis confirmed the diagnose of 5p- syndrome. The presented case shows that it is critically important to perform a further investigation and refer a child with laryngological problems coexisting with dysmorphic features to a clinical geneticist.
Źródło:: Polski Przegląd Otorynolaryngologiczny; 2017, 6, 3; 41-46
2084-5308
2300-7338
Pojawia się w:: Polski Przegląd Otorynolaryngologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Is rectoperineal fistula in anorectal malformations an ectopic anal canal with an internal anal sphincter?
Czy przetoka odbytniczo-kroczowa w wadach odbytu i odbytnicy jest ektopowym kanałem odbytu ze zwieraczem wewnętrznym odbytu?
Autorzy:: Niedzielski, Jerzy
Kobos, Józef
Powiązania:: https://bibliotekanauki.pl/articles/1032880.pdf
Data publikacji:: 2011
Wydawca:: Łódzkie Towarzystwo Naukowe
Tematy:: anorectal malformations
rectoperineal fistula
internal anal
sphincter
anorectal manometry
posterior sagittal approach.
wady odbytu i odbytnicy
przetoka odbytniczo-kroczowa
zwieracz wewnętrzny odbytu
manometria odbytnicza
dostęp strzałkowy tylny
Opis:: Authors tried to determine the role of an internal anal sphincter (IAS) in patients with rectoperineal fistula undergoing PSARP, with or without IAS-saving procedure. Materials and methods: 20 girls and 6 boys with rectoperineal fistula undergoing PSARP between 1993-2008 were included in the study. An IAS-saving operation was performed in 19 children (73.1%), 17 girls and 2 boys, while 7 children underwent regular PSARP with resection of narrowed distal portion of fistula. Results: Functional postoperative result according to the „10” score was good (8-10 pts.) in all 26 children. There was no significant difference in RAP (16.3 vs. 16.9 vs. 17.2 cmH2O) and ACL (1.7 vs. 1.7 vs. 1.9 cm) values between children with and without preserved IAS and the reference group. Positive RAIR was observed in 13 of 19 children with preserved IAS, and in 2 of 7 patients after resection of IAS, but this incidence did not differ statistically (p = 0.095). The major functional disorder in the examined children was constipation, observed in 9 children after sphincter-saving procedure and in 2 patients after regular PSARP, but the difference was not significant (p = 0.658). Conclusions: An IAS is important, but not a decisive factor in fecal continence and IAS-saving procedures are associated with high incidence of constipation. Authors suggest that IAS can be spared, wherever it was possible, i.e. the fistula is wide (at least 8 mm) and it will not impair function of the neoanus.
Autorzy podjęli próbę oceny roli zwieracza wewnętrznego odbytu (ZWO) u pacjentów z przetoką odbytniczo-kroczową po operacji wady odbytu metodą PSARP, z wycięciem lub oszczędzeniem ZWO. Materiały i metody: Badaniami objęto grupę 20 dziewczynek i 6 chłopców z przetoką odbytniczo-kroczową operowanych metodą PSARP w latach 1993-2008. Operację oszczędzającą ZWO przeprowadzono u 19 dzieci (73,1%), 17 dziewczynek i 2 chłopców, natomiast u 7 pacjentów wykonano operację PSARP z wycięciem zwężonego, dystalnego odcinka przetoki. Wyniki: Pooperacyjny wynik czynnościowy wg skali „10” był dobry (8-10 pkt.) u wszystkich 26 dzieci. Nie stwierdzono istotnej różnicy w wartościach RAP (16,3 vs. 16,9 vs. 17,2 cmH2O) i ACL (1,7 vs. 1,7 vs. 1,9 cm) u dzieci z i bez ZWO oraz grupą referencyjną. RAIR wywołano u 13 spośród 19 dzieci z zachowanym ZWO oraz u 2 spośród 7 pacjentów bez ZWO, bez różnicy statystycznej (p = 0,095). Najpoważniejszym zaburzeniem czynnościowym u dzieci były zaparcia obserwowane u 9 pacjentów z zachowanym ZWO i u 2 dzieci po klasycznej operacji PSARP, bez różnicy statystycznej (p = 0,658). Wnioski: ZWO jest ważnym, ale nie decydującym czynnikiem w mechanizmie trzymania stolca, a operacjom oszczędzającym ZWO towarzyszy wysoki odsetek zaparć w okresie pooperacyjnym. Autorzy sugerują oszczędzenie ZWO, jeżeli jest to możliwe, tzn. ujście przetoki jest szerokie (co najmniej 8 mm) i nie upośledza to czynności nowego odbytu.
Źródło:: Folia Medica Lodziensia; 2011, 38, 2; 167-176
0071-6731
Pojawia się w:: Folia Medica Lodziensia
Dostawca treści:: Biblioteka Nauki

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