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Superior mesenteric artery(SMA)

Wei Yu, Wei Hu, Yongjie Shui, Xiaoyang Zhu, Chao Li, Xiaoqiu Ren, Xueli Bai, Risheng Yu, Li Shen, Tingbo Liang, Lei Zheng, Qichun Wei
OBJECTIVES: To explore the areas at highest risk for postoperative pancreatic cancer local recurrence according to the spatial location of local failures, with the aim to provide a precise target volume for pancreatic cancer adjuvant radiotherapy. METHODS: Patients with pancreatic cancer who had undergone surgery for the primary tumor in pancreas at our institution from January 2010 to August 2015 were retrospectively analyzed. All local recurrences were plotted on the computed tomography (CT) image of a representative patient according to their relative coordinates to superior mesenteric artery (SMA) or celiac axis (CA)...
October 19, 2016: Radiation Oncology
Kenichiro Sato, Ryo Itagaki, Kenshiro Arao, Kouzou Makita
A 44-year-old man was transported to our hospital with chief complaints of back pain and paralysis of the leg. Contrast-enhanced computed tomography (CT) imaging revealed an acute Stanford B aortic dissection (AD), which was complicated by acute arterial occlusion of the left external iliac artery. The patient was treated by femorofemoral crossover bypass. Thereafter, abdominal pain was noted, and the patient was diagnosed with intestinal ischemia due to occlusion of the celiac artery and superior mesenteric artery (SMA)...
2016: Annals of Vascular Diseases
Takaaki Saito, Hiroki Tanaka, Naoto Yamamoto, Kazunori Inuzuka, Masaki Sano, Naoki Unno
We report the rare case of a 54-year-old man with uncontrolled renovascular hypertension, who was found to have an abdominal aortic aneurysm with congenital solitary pelvic kidney and superior mesenteric artery stenosis. A single renal artery branched from aneurysmal aortic bifurcation, and both the renal artery and the superior mesenteric artery (SMA) had severe stenosis at their origins. The aneurysm was repaired with a bifurcated Dacron graft, to which the renal artery was anastomosed. SMA bypass was created between the graft's left limb and the SMA using another Dacron graft...
2016: Annals of Vascular Diseases
Keiji Uchida, Norihisa Karube, Shota Yasuda, Takuma Miyamoto, Yusuke Matsuki, Susumu Isoda, Motohiko Goda, Shinichi Suzuki, Munetaka Masuda, Kiyotaka Imoto
: Objectives: We report the pathophysiology and treatment results of type A acute aortic dissection from our 20-year experience. METHODS: We studied 673 patients with type A acute aortic dissection who underwent initial treatment from 1994 through July 2014. We divided these patients into two groups. The former group comprised 448 patients from 1994 through 2008, and the latter group comprised 225 patients from 2009 onward, when the current strategy of initial treatment and surgical technique including the early organ reperfusion therapies were established...
2016: Annals of Vascular Diseases
Henry D De'Ath, Kathryn Oakland, Karim Brohi
BACKGROUND: Arterial calcification on Computerised Tomography (CT) is a marker of cardiovascular disease. It is predictive of future adverse cardiac events and mortality in many disease states. The incidence of arterial disease and its impact on outcomes of the injured is not known. The objectives of this study were to describe the incidence of arterial calcification in trauma patients, and establish its impact on mortality. METHODS: A retrospective cohort study of all injured patients aged over 45 years presenting to a major trauma centre over a 34-month period...
October 10, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Lee Chan Jang, Sung Su Park
This is a case report that suggests the possible association between multiple splanchnic arterial aneurysms and long-distance running. The clinical features of one patient admitted at Chungbuk National University Hospital for treatment of multiple splanchnic arterial aneurysms were reviewed. A 54-year-old man had a recurrent, intermittent and epigastric pain for 2 months. There was no abnormality in gastroscopy and colonoscopy. An abdominal computed tomography angiography documented calcified superior mesenteric artery (SMA) and splenic artery aneurysms...
September 2016: Vascular Specialist International
Benjamin W Starnes, Rachel E Heneghan, Billi Tatum
OBJECTIVE: The objective of this study was to report midterm results of an ongoing physician-sponsored investigational device exemption pivotal clinical trial using physician-modified endovascular grafts (PMEGs) for treatment of patients with juxtarenal aortic aneurysms who are deemed unfit for open repair. METHODS: Data from a nonrandomized, prospective, consecutively enrolling investigational device exemption clinical trial were used. Data collection began on April 1, 2011, and data lock occurred on May 31, 2015, with outcomes analysis through December 31, 2015...
September 26, 2016: Journal of Vascular Surgery
Christy Foster, Abha Choudhary
Triple A syndrome, formerly known as Allgrove syndrome (AS), is characterized by achalasia, alacrima and adrenal insufficiency. Here we report an adolescent male with adrenal insufficiency who developed severe malnutrition secondary to a delayed diagnosis of achalasia. The severe malnutrition in our patient led to superior mesenteric artery (SMA) obstruction syndrome. Severe malnutrition to the point of SMA syndrome has not been previously described in the literature in Triple A syndrome.
October 1, 2016: Journal of Pediatric Endocrinology & Metabolism: JPEM
Kyu Sung Choi, Young Hun Choi, Jung-Eun Cheon, Woo Sun Kim, In One Kim
PURPOSE: To assess the usefulness of the relative position of the superior mesenteric artery (SMA) and superior mesenteric vein (SMV) in diagnosing intestinal malrotation in situs anomaly. MATERIALS AND METHODS: From January 2004 to April 2015, 33 patients with situs anomalies were enrolled in this study who underwent abdominal USG, CT or MRI as well as upper gastrointestinal series (UGIS) or surgery: situs inversus (n=16), left isomerism (n=10), and right isomerism (n=7); age 21...
October 2016: European Journal of Radiology
Michael C Soult, Joseph C Wuamett, S Sadie Ahanchi, Christopher L Stout, Sebastian Larion, Jean M Panneton
OBJECTIVE: Duplex ultrasound (DUS) criteria are well defined for evaluating high-grade stenosis (≥70%) of the native superior mesenteric artery (SMA) and celiac artery (CA). It has been shown that native vessel criteria overestimate the degree of in-stent restenosis (ISR) and that velocity criteria for SMA and CA ISR are not well established. The objective of this study was to define DUS velocity criteria for high-grade ISR of the SMA and CA. METHODS: A retrospective review of all patients who underwent SMA or CA stenting from a single institution was performed from 2004 to 2013...
September 12, 2016: Journal of Vascular Surgery
Zijie Su, Tianyue Pan, Weishuai Lian, Daqiao Guo, Zhihui Dong, Weiguo Fu
A 42-year-old man had intestinal ischemia 7 weeks after endovascular abdominal aortic aneurysm repair due to sacrifice of the inferior mesenteric artery, which had compensated for the intestinal blood supply because of the total occlusion of the superior mesenteric artery (SMA) and severe stenosis of the celiac artery (CA). He was diagnosed in the active phase of Takayasu arteritis, and an emergency endovascular treatment was performed. After the SMA failed to be recanalized, a stent was successfully placed into the CA; this choice was made based on the preexisting collaterals between them...
August 2016: Vascular and Endovascular Surgery
Jiqiao Zhu, Dongdong Han, Xianliang Li, Fei Pan, Jun Ma, Jiantao Kou, Hua Fan, Ren Lang, Qiang He
BACKGROUND: Early diagnosis of superior mesenteric artery (SMA) involvement is vital for patients with a borderline resectable cancer of the pancreatic head to achieve an R0 resection. We aimed to detect the effect of the inferior infracolic 'superior mesenteric artery first' approach with a no-touch isolation surgical technique in these patients. METHODS: The data of 21 patients who were consecutively diagnosed with a borderline resectable cancer of the pancreatic head and treated with our technique between July 2014 and September 2015 were analyzed...
September 6, 2016: Annals of Surgical Oncology
Yulong Chen, Hongmei Zhang, Enqi Liu, Cang-Bao Xu, Yaping Zhang
Vascular smooth muscle endothelin type B (ETB) receptor is involved in the pathogenesis of cardiovascular diseases (CVDs). Hyperhomocysteinemia is an independent risk factor for CVDs. The present study was designed to examine the hypothesis that homocysteine (Hcy) up-regulates vascular smooth muscle ETB receptors. In vitro experiments were performed in rat superior mesenteric artery (SMA) and vascular smooth muscle cells (VSMCs). The rat SMA or VSMCs were cultured in serum-free medium for 24h in the presence and absence of Hcy with or without specific inhibitors for the ERK1/2 signaling pathway and NF-κB...
August 31, 2016: Vascular Pharmacology
Matthew P Goldman, Thomas E Reeve, Timothy E Craven, Matthew S Edwards, Matthew A Corriere, Justin B Hurie, Nitin Garg, Gabriela Velazquez-Ramirez
BACKGROUND: Endovascular intervention is considered the first-line treatment for chronic mesenteric ischemia (CMI) when feasible. Two-vessel revascularization is most definitive when celiac (CA) and superior mesenteric arteries (SMA) are diseased, but single-vessel intervention may be performed in patients with 2-vessel disease due to anatomic/technical factors. We evaluated anatomic predictors of clinical outcomes associated with endovascular treatment of CMI among patients with occlusive SMA lesions...
August 28, 2016: Annals of Vascular Surgery
Sofia Westermark, Elena Rangelova, Christoph Ansorge, Lars Lundell, Ralf Segersvärd, Marco Del Chiaro
BACKGROUND: The recent development of new neo-adjuvant treatment regimens associated with a higher success rate of down-staging has increased the interest of pancreatic surgeons on the role of extended surgery for patients affected by locally advanced pancreatic cancer. Pancreatectomy together with resection of the portal/superior mesenteric vein is considered nowadays standard of care for patients affected by pancreatic cancer. However, the resection of major abdominal arteries is still debatable...
August 25, 2016: Langenbeck's Archives of Surgery
Agata Arazińska, Michał Polguj, Andrzej Wojciechowski, Łukasz Trębiński, Ludomir Stefańczyk
PURPOSE: Median arcuate ligament syndrome (MALS) is a pathologic entity that can affect the celiac axis. Due to the extensive collateral network of mesenteric circulation, stenosis of one mesenteric artery does not lead to significant symptoms. The purpose of this study was to describe multidetector computed tomography (MDCT) angiography findings of celiac artery entrapment by the median arcuate ligament and determine those patients with high risks of ischemic complications. MATERIALS AND METHODS: From January 2012 to March 2016, 103 patients with celiac artery (CA) compression by median arcuate ligament were detected...
August 25, 2016: Clinical Anatomy
A C Rogers, S Chalasani, A G Ryan, K S C Cross, M P McMonagle
Aneurysmal degeneration of the superior mesenteric artery (SMA) is a rare clinical finding, estimated to affect less than 1% of the general population in post-mortem studies. Due to the rare prevalence of aneurysms affecting the SMA, there are no clear or definitive published consensus guidelines for its management at presentation, with both surgical and endovascular options described. An aberrant or replaced right hepatic artery (RRHA) is thought to affect 10-15% of the population. The prevalence of both conditions presenting concomitantly is unknown, but undoubtedly even rarer...
August 12, 2016: Annals of Vascular Surgery
M D Levin
OBJECTIVE: to investigate the pathological physiology of superior mesenteric artery syndrome (SMAS). MATERIAL AND METHODS: We selected 35 articles devoted to SMAS, which were published from 1990 to 2014, and performed radiometric analysis of X-rays, CT scans and MRI slices found in these articles. In pictures the narrowing in the third part of the duodenum was measured from the boundary of the expanded segment to the level of the superior mesenteric artery (SMA)...
March 2016: Vestnik Rentgenologii i Radiologii
J Banerjee, T S Leung, N Aladangady
BACKGROUND AND OBJECTIVE: The objective of the study was to investigate the splanchnic blood flow velocity and oximetry response to blood transfusion in preterm infants according to postnatal age. MATERIALS AND METHODS: Preterm infants receiving blood transfusion were recruited to three groups: 1-7 (group 1; n = 20), 8-28 (group 2; n = 21) and ≥29 days of life (group 3; n = 18). Superior mesenteric artery (SMA) peak systolic (PSV) and diastolic velocities were measured 30-60 min pre- and post-transfusion using Doppler ultrasound scan...
August 10, 2016: Vox Sanguinis
Chun-Yan So, Kwok-Ying Chan, Ho-Yan Au, Man-Lui Chan, Theresa Lai
Superior mesenteric artery (SMA) syndrome is an uncommon cause of intestinal obstruction and seldom been mentioned in palliative care. Hereby, we reported a case of SMA syndrome who presented with symptoms of upper intestinal obstruction in a 68-year-old patient; subsequent CT findings were classical of SMA syndrome. The patient's history of poliomyelitis and recent significant weight loss were the predisposing factors for SMA syndrome. It also highlights the importance of monitoring signs and symptoms of intestinal obstruction in such patients before considering switching to oral feeding...
July 14, 2016: Annals of Palliative Medicine
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