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Superior mesenteric artery(SMA)

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https://www.readbyqxmd.com/read/27914348/favorable-minimal-invasive-surgery-in-the-treatment-of-superior-mesenteric-artery-syndrome-case-report
#1
Leandro Cardoso Barchi, Aline Marcílio Alves, Carlos Eduardo Jacob, Claudio José Caldas Bresciani, Osmar Kenji Yagi, Tarsila Gasparotto Nogueira, Ivan Cecconello, Bruno Zilberstein
INTRODUCTION: The Superior Mesenteric Artery Syndrome (SMAS) is a rare form of intestinal obstruction. The diagnosis is based on findings from imaging studies, including vascular compression of the duodenum by the SMA and can be associated with duodenal dilatation. PRESENTATION OF CASE: We report a case of a patient with SMAS and recurrent episodes of intestinal obstruction, which was successfully treated by laparoscopic duodenojejunostomy. DISCUSSION: The initial treatment is usually conservative for patient's clinical improvement...
October 26, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27889203/changes-in-renal-anatomy-after-fenestrated-endovascular-aneurysm-repair
#2
B Maurel, Y Lounes, M Amako, D Fabre, A Hertault, J Sobocinski, R Spear, R Azzaoui, T M Mastracci, S Haulon
OBJECTIVE: To assess short- and long-term movement of renal arteries after fenestrated endovascular aortic repair (FEVAR). METHODS: Consecutive patients who underwent FEVAR at one institution with a custom-made device designed with fenestrations for the superior mesenteric (SMA) and renal arteries, a millimetric computed tomography angiography (CTA), and a minimum of 2 years' follow-up were included. Angulation between renal artery trunk and aorta, clock position of the origin of the renal arteries, distance between renal arteries and SMA, and target vessel occlusion were retrospectively collected and compared between the pre-operative, post-operative (<6 months), and last (>12 months) CTA...
November 24, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27864477/is-visceral-flow-during-intra-aortic-balloon-pumping-size-or-volume-dependent
#3
Sandro Gelsomino, Pieter W J Lozekoot, Monique M J de Jong, Fabiana Lucà, Orlando Parise, Francesco Matteucci, Mario Romano, Abdullrazak Hossien, Mark La Meir, Niccolò Marchionni, Jos G Maessen, Roberto Lorusso
AIM: We evaluated the influence of intra-aortic balloon size and volume on mesenteric and renal flows. METHODS: Thirty healthy swine underwent 120-minute ligation of the left anterior descending coronary artery followed by 6 hours of reperfusion. Then, they were randomly assigned to the following five groups of animals, with six animals in each group: no intra-aortic balloon pump (IABP), a short 35-mL IABP, a short 40-mL IABP, a long 35-mL IABP and a long 40-mL IABP...
November 17, 2016: Perfusion
https://www.readbyqxmd.com/read/27858118/utility-of-amplatzer-vascular-plug-with-preoperative-common-hepatic-artery-embolization-for-distal-pancreatectomy-with-en-bloc-celiac-axis-resection
#4
Masafumi Toguchi, Masakatsu Tsurusaki, Isao Numoto, Syojiro Hidaka, Miho Yamakawa, Nobuyuki Asato, SungWoon Im, Yukinobu Yagyu, Mitsuru Matsuki, Yoshifumi Takeyama, Takamichi Murakami
PURPOSE: To evaluate the feasibility and safety of the Amplatzer vascular plug (AVP) for preoperative common hepatic embolization (CHA) before distal pancreatectomy with en bloc celiac axis resection (DP-CAR) to redistribute blood flow to the stomach and liver via the superior mesenteric artery (SMA). MATERIALS AND METHODS: Four patients (3 males, 1 female; median age 69 years) with locally advanced pancreatic body cancer underwent preoperative CHA embolization with AVP...
November 17, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27847206/the-sirt1-nf-kb-signaling-pathway-is-involved-in-regulation-of-endothelin-type-b-receptors-mediated-by-homocysteine-in-vascular-smooth-muscle-cells
#5
Yulong Chen, Huanhuan Liu, Hongmei Zhang, Enqi Liu, Cang-Bao Xu, Xingli Su
Hyperhomocysteinemia is an independent risk factor for cardiovascular diseases (CVDs). Endothelin type B (ETB) receptors were involved in the pathogenesis of CVDs. However, Sirtuin 1(Sirt1) has potential protect roles for CVDs. The present study was designed to examine the hypothesis that homocysteine up-regulates ETB receptors through down-regulation of Sirt 1. In vitro experiments were performed in rat superior mesenteric artery (SMA). The rat SMA was cultured in serum free medium for 24h in the presence and absence of homocysteine (Hcy) with or without resveroral (Res) (a Sirt 1agonist)...
November 12, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27846454/intraoperative-localization-of-arteriovenous-malformation-of-a-jejunum-with-combined-use-of-angiographic-methods-and-indocyanine-green-injection-report-of-a-new-technique
#6
Hiromi Ono, Mitsuo Kusano, Futoshi Kawamata, Yasushi Danjo, Masato Kawakami, Kimimoto Nagashima, Hiroshi Nishihara
INTRODUCTION: The localization of small intestine sources of obscure gastrointestinal bleeding has been a challenge. The use of indocyanine green (ICG) is effective in aiding intraoperative localization if a bleeding lesion is identified on angiography. CASE PRESENTATION: A 95-year-old Japanese man presented with hematochezia. Selective angiography of the superior mesenteric artery (SMA) established an arteriovenous malformation (AVM). ICG injection into the feeding vessel was administered intraoperatively, and the demarcated segment of the jejunum was resected...
October 15, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27834292/mesenteric-vascular-dysregulation-and-intestinal-inflammation-accompanies-experimental-spinal-cord-injury
#7
Emily M Besecker, Gina M Deiter, Nicole Pironi, Timothy K Cooper, Gregory Michael Holmes
Cervical and high thoracic spinal cord injury (SCI) drastically impairs autonomic nervous system function. Individuals with SCI at thoracic spinal-level 5 (T5) or higher often present cardiovascular disorders that include resting systemic arterial hypotension. Gastrointestinal (GI) tissues are critically dependent upon adequate blood flow and even brief periods of visceral hypoxia triggers GI dysmotility. The aim of this study was to test the hypothesis that T3-SCI induces visceral hypoperfusion, diminished postprandial vascular reflexes and concomitant visceral inflammation...
November 9, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27833827/unusual-manifestation-of-superior-mesenteric-artery-syndrome-in-a-female-patient-a-case-presentation
#8
Christian Fisahn, Marc Moisi, Randle Umeh, Scott Sylvester, Prasanthi Maddali, Susan J Tubbs, Rod J Oskouian, Marios Loukas, R Shane Tubbs
Superior mesenteric artery (SMA) syndrome is a rare clinical entity. We report a female patient presenting with abdominopelvic pain and diagnosed with superior mesenteric artery syndrome. Direct venography revealed a large ovarian varix that was treated with hysterectomy and unilateral oophorectomy. SMA syndrome can have many presentations often with small bowel obstruction. Obstruction of only the ovarian vein with resultant ovarian varix is an unusual presentation.
September 22, 2016: Curēus
https://www.readbyqxmd.com/read/27830874/renal-artery-entrapment-anatomical-risk-factors-rating
#9
Agata Arazińska, Michał Polguj, Mirosław Topol, Andrzej Wojciechowski, Łukasz Trębiński, Ludomir Stefańczyk
BACKGROUND: Cases of renal artery entrapments by extrinsic compression have been infrequently reported in literature. We aimed to describe renal artery entrapment (RAE) and elucidate anatomical factors that may be related to renal artery stenosis. MATERIALS AND METHODS: 204 patients' CT scans from 2011 to 2015 made for various reasons in Radiology Department were retrospectively analyzed and 7 cases of renal artery entrapment were found. Authors studied the level of origin of renal arteries vs celiac trunk (CT), superior mesenteric artery (SMA) and vertebrae...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27830067/a-rare-cause-of-acute-abdomen-spontaneous-dissection-of-the-superior-mesenteric-artery
#10
Mohammad Jamal Uddin Ansari, Nikunjkumar Patel, Sunil Tulpule, Shuvendu Sen, Abdalla Yousif
Spontaneous superior mesenteric artery (SMA) dissection is a rare, but potentially fatal disease. Prompt diagnosis and treatment of SMA dissections result in a lower prevalence of intestinal infarction and mortality. In the current era, imaging techniques can promptly diagnose SMA dissection; however, no definitive guidelines have been established to treat this condition.
November 2016: Clinical Case Reports
https://www.readbyqxmd.com/read/27803908/prominent-gastroduodenal-artery-endosonographic-sign-of-celiac-artery-stenosis
#11
Can Gonen, Ali Sürmelioğlu, Metin Tilki, Gamze Kiliçoğlu
Celiac artery (CA) stenosis is a relatively common finding in patients undergoing pancreaticoduodenectomy (PD). In the presence of CA stenosis, arterial blood supply to the celiac territory is usually sustained from the superior mesenteric artery (SMA) through well-developed collaterals. In this paper, the authors report endosonographically identified prominent gastroduodenal artery as the sign of CA stenosis for the first time. Uncovering previously unidentified vascular abnormality, endoscopic ultrasound (EUS) has improved patient management...
September 2016: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/27798536/influences-of-vagotomy-on-gut-ischemia-reperfusion-injury-in-mice
#12
Motonari Ri, Kazuhiko Fukatsu, Taiki Miyakuni, Masashi Yanagawa, Satoshi Murakoshi, Hiroshi Yasuhara, Yasuyuki Seto
BACKGROUND: How vagotomy affects host responses to gut ischemia-reperfusion (I/R) is unclear. MATERIALS AND METHODS: Exp.1: Male Institute of Cancer Research mice (n = 22) were assigned to the I/R or the vago-I/R group. The I/R mice underwent 45-minute superior mesenteric artery (SMA) occlusion. The vago-I/R mice received vagotomy before SMA occlusion. Survival was observed for 48 hours.Exp.2: Mice (n = 55) were divided into 4 groups (Sham, vago, I/R, vago-I/R)...
October 26, 2016: Shock
https://www.readbyqxmd.com/read/27795815/arterial-complication-of-irreversible-electroporation-procedure-for-locally-advanced-pancreatic-cancer
#13
Yahya Ekici, Tugan Tezcaner, Hüseyin Onur Aydın, Fatih Boyvat, Gökhan Moray
Irreversible electroporation (IRE) is a non-thermal ablation technique used especially in locally advanced pancreatic carcinomas that are considered surgically unresectable. We present the first case of acute superior mesenteric artery (SMA) occlusion secondary to pancreatic IRE procedure that has not been reported before in the literature. A 66-year-old man underwent neoadjuvant chemoradiotherapy for locally advanced pancreatic ductal adenocarcinoma. IRE procedure was applied to the patient during laparotomy under general anesthesia...
October 15, 2016: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/27790413/variations-in-the-origin-and-course-of-right-hepatic-artery-and-its-surgical-significance
#14
Narayanaperumal Mugunthan, Rajendran Kannan, Christilda Felicia Jebakani, Jayaram Anbalagan
INTRODUCTION: Variations in the Right Hepatic Artery (RHA) are exceedingly common and these variations are of great importance to surgeons and interventional radiologists. A thorough knowledge of the right hepatic arterial anatomy is mandatory while performing hepatic surgery and hepatic arteriography. AIM: To find out the variations in the origin and course of the RHA and its surgical significance. MATERIALS AND METHODS: This study was conducted in 60 embalmed adult cadavers of both sexes of age group between 50 to 80 years...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27756417/pancreatic-cancer-adjuvant-radiotherapy-target-volume-design-based-on-the-postoperative-local-recurrence-spatial-location
#15
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
https://www.readbyqxmd.com/read/27738474/lifesaving-treatment-of-acute-stanford-b-aortic-dissection-complicated-by-intestinal-ischemia-with-stent-placement-in-the-superior-mesenteric-artery-a-case-report
#16
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
https://www.readbyqxmd.com/read/27738466/surgical-treatment-of-abdominal-aortic-aneurysm-with-congenital-solitary-pelvic-kidney-and-superior-mesenteric-artery-stenosis
#17
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
https://www.readbyqxmd.com/read/27738456/pathophysiology-and-surgical-treatment-of-type-a-acute-aortic-dissection
#18
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
https://www.readbyqxmd.com/read/27724913/ct-screened-arterial-calcification-as-a-risk-factor-for-mortality-after-trauma
#19
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
https://www.readbyqxmd.com/read/27699161/intensive-long-distance-running-as-a-possible-cause-of-multiple-splanchnic-arterial-aneurysms-a-case-report
#20
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
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