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    Wyświetlanie 1-4 z 4
    Tytuł:
    Factors determining the best surgical exposure and safe clip positioning in surgical treatment of anterior communicating artery (AComA) aneurysms – particular significance of AComA complex rotation in the axial plane
    Autorzy:
    Świątnicki, Wojciech
    Radomiak-Załuska, Anna
    Heleniak, Mariusz
    Komuński, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/1392107.pdf
    Data publikacji:
    2019
    Wydawca:
    Index Copernicus International
    Tematy:
    computed tomography angiography
    intracranial aneurysms
    subarachnoid hemorrhage
    vascular spatial orientation
    Opis:
    Introduction: The aim of this study was to evaluate whether Anterior Communicating Artery (AComA) complex rotation in axial plane may influence the ease of surgical exploration in this region and safety of clip positioning when left vs right-sided approach is compared. Materials and methods: This is a retrospective study based on analysis of patients operated due to AComA aneurysm, both ruptured and unruptured. AComA complex position in relation to coronal plane was evaluated using 3D-CTA VR reconstructions. Next, comparison between surgical approach from the side where A1-A2 junction (angle) was located anterior and posterior to coronal plane was performed in relation to surgical difficulties and intra- and postoperative complications. Results: Subgroup statistical analysis revealed that there is a strong and statistically significant correlation between AComA complex rotation and surgical difficulties expressed by the need of repeated temporary clip application and brain transgression. When anterior vs posterior angle side approach was compared in relation to surgical difficulties and complications, there was a statistically significant difference with strong correlation (p < 0.05) in favour of posterior angle side approach. Interestingly, in 72.7% and 45.5% of patients that were operated from the side where A1-A2 junction was located posterior to coronal plane, the approach was performed form the side of a non-dominant A1 and aneurysm dome projection side, respectively. Conclusions: Despite its limitations, our results suggest that microsurgical clipping strategy of AComA aneurysms should at least include AComA complex rotation in axial plane, besides well acknowledged factors, when deciding from which side these lesions will be approached.
    Źródło:
    Polish Journal of Surgery; 2019, 91, 6; 6-10
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preoperative assessment of the risk of cavernous ICA injury in endoscopic transsphenoidal surgery
    Autorzy:
    Berger, Greta
    Łukasiewicz, Adam
    Grinevych, Vitalii
    Milewska, Anna Justyna
    Tarasów, Eugeniusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1391789.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    adenoma
    cavernous segment (C4) of internal carotid artery (ICA)
    computed tomography angiography (CTA)
    endoscopic endonasal transsphenoidal surgery
    magnetic resonance angiography (MRA)
    pituitary gland
    Opis:
    In endoscopic endonasal transsphenoidal procedures, ICA injury occurs in up to 3.8% [1]. The highest hazard of injury is in case of contact between the ICA and pituitary gland, during opening of the dura. Preoperative imaging, i.e. CTA, MRA, supports objectively intraoperative techniques of imaging. CTA as well as MRA are essential to access anatomic details in variability of cavernous segments of the ICA (C4 ICA). The aim of the study was to measure the space between Internal Carotid Arteries and distances between the pituitary gland and ICA on both sides. Anatomic relations between left and right ICAs were accessed on CTA (coronal scans) at levels: A – The most concave point of the C4–C5 bend; B – The most convex point of the C4 bend; C – The C4 posterior ascending portion. Distances between pituitary gland and ICAs were measured on both sides on MRA (axial scans): A’ – The most concave point of C4–C5 bend; B’ – The most convex point of the C4 bend. The Statistica 13 (StatSoft) software was used for the statistical analysis. The Mann-Whitney U test was applied to determine differences between the groups. To analyze the strength of correlations between the quantitative variables, Spearman’s rank correlation coefficients were calculated. The results were considered statistically significant at the level of P < 0.05. Distance reduction was shown between pituitary glands and cavernous segment (C4) of ICAs on both sides, which is related to age. This has impact on surgical planning and highlights the risk of intraoperative injury of ICAs.
    Źródło:
    Polish Journal of Surgery; 2020, 92, 2; 1-7
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Carotid Body Tumor – radiological imaging and genetic assessment
    Autorzy:
    Berger, Greta
    Łukasiewicz, Adam
    Grinevych, Vitalii
    Tarasów, Eugeniusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1391815.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    angiography
    Carotid Body Tumor
    computed tomography
    germline mutations
    magnetic resonance
    paraganglioma
    Opis:
    Carotid Body Tumor i.e. Paraganglioma is a challenging entity from the point of view of multidisciplinary diagnosis. The main treatment option, i.e. surgery, yields intraoperative risk related to cranial nerve palsy and vascular morbidity. Bifurcation of the common carotid artery, especially at the carotid body, is the place were head and neck paraganglioma is most frequently seen, i.e. in 60% of cases [15]. Indeed, the knowledge of genetic germline SDH mutations, which cause deregulation of hypoxiainduced factors, allows for better understanding of the tumor nature. It is recommended to conduct selective neck dissection in regions IIA, IIB, III to exclude malignant transformation and metastasis, due to malignant potential of carotid body tumors, especially in case of SDHB mutation. SDHD mutation is the main cause of hereditary HNPGLs. Computed tomography (CT), magnetic resonance imaging (MRI) and angiography allow for thorough assessment of paraganglioma extension. In large tumors embolization of the supplying artery under guidance of angiography may be considered. In case of carotid body tumor, differential diagnosis should include: carotid artery aneurysm, lymphadenopathy, Schwannoma of the hypoglossal nerve or accessory thyroid gland.
    Źródło:
    Polish Journal of Surgery; 2020, 92, 6; 39-44
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Duplex Ultrasound Arterial Mapping (DUAM) and Preoperative Diagnostics in Patients with Atherosclerotic Ischaemia of Lower Extremities
    Autorzy:
    Gabriel, Marcin
    Pawlaczyk, Katarzyna
    Szajkowski, Rafał
    Stefaniak, Karolina
    Dzieciuchowicz, Łukasz
    Krasiński, Zbigniew
    Powiązania:
    https://bibliotekanauki.pl/articles/1396692.pdf
    Data publikacji:
    2012-06-01
    Wydawca:
    Index Copernicus International
    Tematy:
    atherosclerotic ischemia of the lower extremities
    preoperative diagnostic
    duplex scan
    angiography
    computed tomography
    Opis:
    In spite of the fact duplex Doppler ultrasonography is recognized as an scanning technique equivalent to other imaging methods for preoperative diagnostics of the lower extremity arteries, in many centres its use is limited to screening.The aim of the study was to the determine usefulness of arterial duplex mapping for preoperative diagnostics in patients with peripheral artery occlusive disease (PAOD)Material and methods. In 2008-2009, 103 patients with PAOD symptoms (129 limbs) were examined in a prospective, non-randomized study. DUAM was performed in all limbs, DSA in 90, CT-angio in 29, and revascularisation procedures in 116 limbs.Results. Problems with completing DUAM occurred in 10,1% of cases, including 1.5% of examinations of no diagnostic value. Consistency of DUAM and DSA results was found in 94.6% of cases, and consistency of DUAM results and the range of actually performed ranges was found in 97.8% of cases. Consistency of DUAM and CT-angio results was recorded in 68.0% of cases. The comparison between individual examinations and the actually performed procedures showed consistency of 96.5% for DUAM and 72.4% for CT-angio.Conclusions. DUAM usefulness for detecting and defining lesions in lower extremity arteries is similar to that of DSA and CT-angio. This examination may be successfully used in preoperative diagnostics, particularly for intravascular procedures, which makes possible to reduce exposition to radiation and minimalize diagnostics costs.
    Źródło:
    Polish Journal of Surgery; 2012, 84, 6; 276-284
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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