The Experts below are selected from a list of 19779 Experts worldwide ranked by ideXlab platform
Peng Xiao - One of the best experts on this subject based on the ideXlab platform.
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diagnosis of spontaneous isolated superior Mesenteric Artery dissection using computed tomography angiography
Chinese Journal of Gastrointestinal Surgery, 2012Co-Authors: Kewen Peng, Bixian Shen, Yan Gao, Zhibin Zeng, Chunrong Wang, Peng XiaoAbstract:Objective To investigate the characteristics of the spontaneous isolated superior Mesenteric Artery dissection (SISMAD) on computed tomography angiography (CTA).Methods Twentyfive patients with unexplained acute abdominal pain received CTA.Results Four cases with the SISMAD were found and all were male with a mean age of (45.3±6.7) years.Two patients had hypertension history.CT showed enlarged diameter of the superior Mesenteric Artery with dissection in 4cases,intimal flap and visible false lumen in 2 cases,ulcer-like laceration in 1 case,and intranural hematoma in 1 case.The proximal lacerations or entries were all at the proximal segment of the superior Mesenteric Artery.CTA classifications were type Ⅰ a (n=2),Ⅱ b (n=1),and Ⅲ (n=1).Two patients underwent repeated CTA when discharged,and progressive changes were discovered.Conclusion CTA can clearly show the characteristics of the superior Mesenteric Artery dissection,confirm the diagnosis,and provide an important basis for the classification and follow-up observation. Key words: Artery dissection; Superior Mesenteric Artery; Tomography, X-ray computed; Angiography
Ashraf M Mansour - One of the best experts on this subject based on the ideXlab platform.
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three isolated superior Mesenteric Artery dissections update of previous case reports diagnostics and treatment options
Journal of Vascular Surgery, 2008Co-Authors: John T Morris, John Guerriero, Joseph G Sage, Ashraf M MansourAbstract:Isolated superior Mesenteric Artery dissection is a relatively rare vascular pathology. However, the number of recent case reports has shown an increasing incidence with the widespread use of computed tomography imaging for abdominal pain. Here we report three cases of isolated superior Mesenteric Artery dissection. The unique surgical option of small bowel transplantation along with successful medical management is described. A treatment algorithm for isolated superior Mesenteric Artery dissection is also proposed.
Kewen Peng - One of the best experts on this subject based on the ideXlab platform.
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diagnosis of spontaneous isolated superior Mesenteric Artery dissection using computed tomography angiography
Chinese Journal of Gastrointestinal Surgery, 2012Co-Authors: Kewen Peng, Bixian Shen, Yan Gao, Zhibin Zeng, Chunrong Wang, Peng XiaoAbstract:Objective To investigate the characteristics of the spontaneous isolated superior Mesenteric Artery dissection (SISMAD) on computed tomography angiography (CTA).Methods Twentyfive patients with unexplained acute abdominal pain received CTA.Results Four cases with the SISMAD were found and all were male with a mean age of (45.3±6.7) years.Two patients had hypertension history.CT showed enlarged diameter of the superior Mesenteric Artery with dissection in 4cases,intimal flap and visible false lumen in 2 cases,ulcer-like laceration in 1 case,and intranural hematoma in 1 case.The proximal lacerations or entries were all at the proximal segment of the superior Mesenteric Artery.CTA classifications were type Ⅰ a (n=2),Ⅱ b (n=1),and Ⅲ (n=1).Two patients underwent repeated CTA when discharged,and progressive changes were discovered.Conclusion CTA can clearly show the characteristics of the superior Mesenteric Artery dissection,confirm the diagnosis,and provide an important basis for the classification and follow-up observation. Key words: Artery dissection; Superior Mesenteric Artery; Tomography, X-ray computed; Angiography
Jin Tao Han - One of the best experts on this subject based on the ideXlab platform.
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vasodilator and endovascular therapy for isolated superior Mesenteric Artery dissection
Journal of Vascular Surgery, 2013Co-Authors: Jing Yuan Luan, Guo Jun Zhai, Jin Tao HanAbstract:Objective We report our experience in the treatment of isolated superior Mesenteric Artery dissection and review the clinical and imaging features reported in the literature. Methods A retrospective study was conducted of 18 consecutive patients with isolated superior Mesenteric Artery dissection who presented at the Peking University Third Hospital between September 2008 and May 2012. Their clinical characteristics, including age, sex, medical history, risk factors, symptoms, diagnostic imaging modality, and treatment, were analyzed. Also reviewed were 278 patients with isolated superior Mesenteric Artery dissection reported in the English language literature. The epidemiology, mechanism, clinical presentation, imaging features, and treatment were discussed. Results There were 14 men and four women with a mean age of 55.6 years (range, 41-84 years). Four patients were asymptomatic, and 14 presented with acute-onset abdominal pain. The diagnosis was established by contrast-enhanced computed tomography in 17 patients and ultrasound imaging in one patient. All dissections were located at the anterior wall and around the convex curvature of the superior Mesenteric Artery. The decision to intervene was based on symptoms. Three asymptomatic patients underwent successful conservative management, and one asymptomatic patient with an aneurysmal dilated false lumen underwent endovascular stent placement. For the 14 symptomatic patients, definitive treatment included catheter-directed infusion of a vasodilator in four and stent placement combined with catheter-directed infusion of a vasodilator in 10, of whom one patient underwent hybrid stent placement. No complications or deaths occurred. During the mean 14.9-month (range, 1-40 month) follow-up period, all patients were asymptomatic, and patency of the superior Mesenteric Artery was demonstrated by contrast-enhanced computed tomography scan. Conclusions Conservative management can be applied to asymptomatic patients with isolated superior Mesenteric Artery dissection. For symptomatic patients, stent placement is the definitive treatment if there is no arterial rupture or intestinal necrosis. Self-expanding bare stents that completely cover the curvature of the superior Mesenteric Artery are recommended. Catheter-directed infusion of a vasodilator can be an effective accessional process after stent placement.
Pablo Palma - One of the best experts on this subject based on the ideXlab platform.
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acute retroperitoneal bleeding due to inferior Mesenteric Artery aneurysm case report
BMC Gastroenterology, 2010Co-Authors: P Perezvallecillos, Raquel Condemuino, Inmaculada Segurajimenez, J A Ferron, N Maldonadofernandez, V Garciarospide, Pablo PalmaAbstract:Background: Visceral Artery aneurysms (VAA), although uncommon, are increasingly being detected. We describe a case of spontaneous retroperitoneal hemorrhage from a ruptured IMA aneurysm associated with stenosis of the superior Mesenteric Artery (SMA) and celiac trunk, successfully treated with surgery. Methods: A 65-year-old man presented with abdominal pain and hypovolemic shock. Abdominal CT scan showed an aneurysm of the inferior Mesenteric Artery with retroperitoneal hematoma. In addition, an obstructive disease of the superior Mesenteric Artery and celiac axis was observed. Results: Upon emergency laparotomy a ruptured inferior Mesenteric Artery aneurysm was detected. The aneurysm was excised and the Artery reconstructed by end-to-end anastomosis. Conclusions: This report discusses the etiology, presentation, diagnosis and case management of inferior Mesenteric Artery aneurysms.
