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Superior mesenteric artery(SMA)

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https://www.readbyqxmd.com/read/28079834/intestinal-brucellosis-associated-with-celiac-artery-and-superior-mesenteric-artery-stenosis-and-with-ileum-mucosa-and-submucosa-thickening-a-case-report
#1
Miaoqian Wang, Qingli Zhu, Qian Yang, Wenbo Li, Xinning Wang, Wei Liu, Baotong Zhou, Zhenghong Li, Hong Yang
RATIONALE: Brucellosis is a multisystem infection found worldwide that has a broad range of characteristics, which range from acute fever and hepatomegaly to chronic infections that most commonly affect the central nervous system, cardiovascular system, or skeletal system. Gastrointestinal and splanchnic artery involvements in brucellosis are relatively uncommon. PATIENT CONCERNS: We report a case of brucellosis in an adolescent presenting as intermittent abdominal pain, diarrhea, and fever, with intestinal tract involvement...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28060185/posterior-superior-mesenteric-artery-first-dissection-versus-classical-approach-in-pancreaticoduodenectomy-outcomes-of-a-case-matched-study
#2
Abigail E Vallance, Alastair L Young, Sanjay Pandanaboyana, Jeremy Peter Lodge, Andrew M Smith
OBJECTIVES: Posterior superior mesenteric artery (SMA) first dissection in pancreaticoduodenectomy (PD) may allow for early assessment of resectability and aberrant anatomy. Study objectives were to compare resection margins, perioperative outcomes, disease-free survival (DFS) and overall survival (OS) in patients undergoing a posterior SMA first dissection PD to a classical technique PD. METHODS: Patients (n = 77) who underwent a posterior SMA first PD for adenocarcinoma were case matched for patient and tumor characteristics with patients undergoing a classical approach PD from 2006 to 2014 (n = 177)...
February 2017: Pancreas
https://www.readbyqxmd.com/read/28050440/conservative-management-of-isolated-superior-mesenteric-artery-and-celiac-trunk-dissection-a-case-report-and-literature-review
#3
Mohamed Hedfi, Yosra Messaoudi, Adnen Chouchene
Isolated arterial dissection without aortic pathology has been rarely reported in mesenteric vessels. The natural history and appropriate treatment for this disease is uncertain because of the scarcity of literature which limits the data available to the clinician, resulting in management challenges. Herein, we report a rare case of a 42-year-old Tunisian man with spontaneous dissection and aneurysmal dilatation of the Celiac Artery (CA) and the Superior Mesenteric Artery (SMA) with partial thrombosis. This case was successfully managed conservatively with heparin infusion and blood pressure control and the patient remained symptom free at 15 months follow up...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28042763/anatomical-suitability-of-the-zenith-off-the-shelf-p-branch-endograft-in-juxtarenal-aortic-aneurysms-previously-treated-using-the-chimney-technique
#4
Martin Schroeder, Konstantinos P Donas, Konstantinos Stavroulakis, Arne Stachmann, Giovanni Torsello, Theodosios Bisdas
PURPOSE: To examine the suitability of the Zenith off-the-shelf (p-branch) endograft in patients with juxta- or pararenal abdominal aortic aneurysms (J/PRAA) previously treated with endovascular aneurysm repair incorporating the chimney technique (chEVAR). METHODS: Between January 2012 and December 2014, high-resolution computed tomography angiograms and clinical data from 50 patients (mean age 79 years; 45 men) with J/PRAAs treated with chEVAR were retrospectively reviewed...
December 1, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28031660/a-rare-case-of-gastric-mantle-cell-lymphoma-causing-superior-mesenteric-artery-syndrome-in-an-adult
#5
Shailesh Garg, Alain Derzie
Superior mesenteric artery (SMA) syndrome or Wilkie syndrome is a rare condition that arises when the distal third of the duodenum becomes trapped between the SMA and the abdominal aorta causing intestinal obstruction. It is most commonly described in adolescents and rarely in adult patients. We present an interesting case of an adult who developed SMA syndrome from an uncommon gastric mantle cell lymphoma that was recognized early and treated surgically.
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28029371/the-role-of-water-soluble-meconium-subfraction-and-lipid-soluble-meconium-subfraction-on-the-superior-mesenteric-artery-vasoconstriction-in-chick-embryos
#6
Serdar Şiyve, Oktay Ulusoy, Osman Z Karakuş, Nergis Murat, Mehmet E Uslu, Oğuz Ateş, Gülce Hakgüder, Mustafa Olguner, Feza M Akgür
OBJECTIVE: Intraamniotic meconium has been responsible for intestinal damage in gastroschisis and meconium-dependent intestinal ischemia has been proposed to induce additional intestinal damage in gastroschisis. This study is aimed to determine the effects of lipid and water-soluble meconium subfractions on the contractility of the superior mesenteric artery (SMA). MATERIALS AND METHODS: The study was conducted on 18-day fertilized chick embryos (Gallus Domesticus)...
October 14, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28012909/outcomes-and-radiographic-findings-of-isolated-spontaneous-superior-mesenteric-artery-dissection
#7
Y Kimura, T Kato, K Nagao, T Izumi, T Haruna, K Ueyama, T Inada, M Inoko
OBJECTIVES: This study aimed to investigate the features, treatments, and prognosis of patients with symptomatic and asymptomatic isolated SMA dissection. METHODS: Data from 35 consecutive patients in whom isolated SMA dissection was diagnosed on computed tomography angiography (CTA) between 2004 and 2015 at two general hospitals in Japan, were collected retrospectively. Nineteen symptomatic patients were compared, and 16 asymptomatic patients with incidentally revealed SMA dissection were also compared...
December 21, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28007080/preoperative-embolization-of-the-celiac-axis-or-common-hepatic-artery-before-distal-pancreatectomy-with-resection-of-the-celiac-axis
#8
Markus Zimmermann, Martin Liebl, Maximilian Schulze-Hagen, Federico Pedersoli, Jochen Pfeffer, Maximilian Schmeding, Peter Isfort, Christiane K Kuhl, Philipp Bruners
Patients with locally advanced pancreatic cancer who undergo distal pancreatectomy with resection of the celiac axis (CA) are at risk for postoperative hepatic or gastric ischemia if collateral blood flow from the superior mesenteric artery (SMA) via the gastroduodenal artery is insufficient. This study presents a technique for preoperative angiographic evaluation of these collateral vessels by using an AMPLATZER Vascular Plug to temporarily occlude the CA or common hepatic artery while simultaneously performing digital subtraction angiography of the SMA...
January 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28003918/superior-mesenteric-artery-syndrome-with-abdominal-compartment-syndrome
#9
Kevin Reece, Rachel Day, Janna Welch
Superior Mesenteric Artery (SMA) syndrome is a condition in which the duodenum becomes compressed between the SMA and the aorta, resulting in bowel obstruction which subsequently compresses surrounding structures. Pressure on the inferior vena cava (IVC) and aorta decreases cardiac output which compromises distal blood flow, resulting in abdominal compartment syndrome with ischemia and renal failure. A 15-year-old male with SMA syndrome presented with 12 hours of pain, a distended, rigid abdomen, mottled skin below the waist, and decreased motor and sensory function in the lower extremities...
2016: Case Reports in Emergency Medicine
https://www.readbyqxmd.com/read/27956648/abdominal-aortic-aneurysm-with-renal-arteries-originating-above-the-superior-mesenteric-artery
#10
Ajit Rao, Adam Korayem, Rami Tadros, Peter Faries, Michael Marin, Rajiv Chander
A 63-year-old female presented to clinic following an incidental finding of an abdominal aortic aneurysm (AAA). Preoperative imaging was consistent with an infrarenal AAA over 5-cm in diameter with both renal arteries originating above the superior mesenteric artery (SMA). The patient subsequently underwent an endovascular aneurysm repair (EVAR) using the AFX stent-graft (Endologix, Inc, Irvine, Calif). Notably, the proximal stent-graft piece was unsheathed with the image intensifier in a lateral position to ensure deployment below the SMA...
December 12, 2016: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27943576/predicting-difficulty-in-extending-the-ileal-pouch-to-the-anus-in-restorative-proctocolectomy-investigation-of-a-simple-predictive-method-using-computed-tomography
#11
G Ohira, H Miyauchi, K Narushima, A Kagaya, Y Mutou, H Saitou, K Hayano, H Matsubara
AIM: This study aimed to assess the ability of preoperative axial computed tomography (CT) to predict surgical difficulty in bringing the ileal pouch to the level of the anus during restorative proctocolectomy (RPC). METHOD: Patients who underwent RPC with an ileal pouch-anal anastomosis (or ileal pouch-anal canal anastomosis) in our institution between January 2008 and April 2014 were enrolled. The patients were divided into two groups, including those in whom CT indicated potential difficulty in extending the pouch downwards (extension difficult (ED) group) and patients with no CT evidence of potential difficulty (normal group)...
January 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/27932767/-mid-and-long-term-result-of-celiac-artery-coverage-in-tevar-treatment-for-aortic-dissection
#12
Ming Li, Chang Shu, Quanming Li, Tun Wang, Kun Fang
To observe the mid- and long-term result of intentional coverage of celiac artery in thoracic endovascular aortic repair (TEVAR) surgery for aortic dissection.
 Methods: We retrospectively analyzed 21 cases who received TEVAR with celiac artery coverage during the operation. The existence of collaterals between celiac artery (CA) and superior mesenteric artery (SMA) was confirmed by preoperative CT angiography (CTA) or digital substract angiography (DSA) for each patient. We used the stent-graft precisely above the orifice of SMA...
November 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/27930504/aberrant-hepatic-arteries-running-through-pancreatic-parenchyma-encountered-during-pancreatoduodenectomy-two-rare-case-reports-and-strategies-for-surgical-treatment
#13
Lei Wang, Jianwei Xu, Dong Sun, Zongli Zhang
BACKGROUND: Aberrant hepatic arteries (HAs) encountered during pancreatoduodenectomy are difficult to manage. MEHTODS: Two cases with rare types of aberrant HA running through the pancreatic parenchyma were reviewed. RESULTS: The first case, a 68-year-old man, was admitted with obstructive jaundice. A tumor of the pancreatic head and aberrant HAs were suspected on computed tomography (CT) scan. At laparotomy, a new variation was identified; namely, 2 aberrant arteries-a right replaced HA and middle HA (RMHA) that both originated from the superior mesenteric artery (SMA) and ran via intrapancreatic paths posterior and anterior to the pancreatic head, respectively...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27914348/favorable-minimal-invasive-surgery-in-the-treatment-of-superior-mesenteric-artery-syndrome-case-report
#14
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...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27889203/changes-in-renal-anatomy-after-fenestrated-endovascular-aneurysm-repair
#15
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
#16
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 1, 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
#17
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
#18
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)...
December 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
#19
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...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27834292/mesenteric-vascular-dysregulation-and-intestinal-inflammation-accompanies-experimental-spinal-cord-injury
#20
Emily M Besecker, Gina M Deiter, Nicole Pironi, Timothy K Cooper, Gregory M 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...
January 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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