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Mesenteric vein

Mais M Aljunaidy, Jude S Morton, Christy-Lynn Cooke, Sandra T Davidge
Intrauterine growth restriction (IUGR) is a common pregnancy complication and is a leading cause of fetal morbidity and mortality. Placental hypoxia contributes to adverse fetal consequences, including IUGR. Exposing pregnant rats to hypoxia can lead to IUGR; however, assessment of maternal vascular function in a rat model of hypoxia, and the mechanisms that may contribute to adverse pregnancy outcomes, has not been extensively studied. We hypothesized that exposing pregnant rats to hypoxia will affect maternal systemic vascular function and increase the uterine artery resistance index (RI), which will be associated with IUGR...
October 19, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
Rukma Parthvi, Sunil Mehra
No abstract text is available yet for this article.
October 3, 2016: American Journal of Therapeutics
Modar Kassan, Ajit Vikram, Qiuxia Li, Young-Rae Kim, Santosh Kumar, Julia Jacob, Irani Kaikobad
OBJECTIVE: Endoplasmic reticulum (ER) stress leads to vascular endothelial dysfunction in hypertension. The role of microRNAs in vascular ER stress is not fully understood. Here we examined the role of vascular microRNA-204 (miR-204) in inducing endothelial ER stress and dysfunction by governing the expression of the SIRTUIN1 (SIRT1) lysine deacetylase. DESIGN AND METHOD: Human Umbilical Vein cells (HUVECs) were treated with tunicamycin or transfected with miR-204 Mimic or siRNA SIRT1...
September 2016: Journal of Hypertension
Kazuhiro Yokota, Dai Kishida, Hidekazu Kayano, Masahide Yazaki, Yuki Shimada, Yuji Akiyama, Toshihide Mimura
We report the case of a Japanese woman with amyloid light chain (AL) amyloidoma in the abdominal aortic retroperitoneum and mesentery. Irregular soft tissue mass lesions with calcification in the abdominal aortic retroperitoneum and mesentery were initially detected by computed tomography at another hospital. The lesions gradually compressed the duodenum, causing symptoms of bowel obstruction. The patient was clinically diagnosed with retroperitoneal fibrosis, and prednisolone was administered at a dose of 40 mg/day...
2016: Case Reports in Rheumatology
Masaki Yamamoto, Nobuhisa Akamatsu, Taku Aoki, Yoshihiro Sakamoto, Sumihito Tamura, Kiyoshi Hasegawa, Norihiro Kokudo
BACKGROUND: There are several techniques for reconstructing the portal vein-superior mesenteric vein during pancreatoduodenectomy. The aim of the present study was to present our results with portal vein-superior mesenteric vein reconstruction using cryopreserved homologous veins during pancreatoduodenectomy for patients with pancreatic head cancer. METHODS: Patients who underwent pancreatoduodenectomy for pancreatic head cancer were reviewed retrospectively. In patients with portal vein-superior mesenteric vein resection, the detailed method of reconstruction and clinical outcomes were reviewed...
October 7, 2016: Surgery
Xavier Chaufour, Julien Gaudric, Yann Goueffic, Réda Hassen Khodja, Patrick Feugier, Sergei Malikov, Guillaume Beraud, Jean-Baptiste Ricco
OBJECTIVE: Endovascular aneurysm repair (EVAR) is widely used with excellent results, but its infectious complications can be devastating. In this paper, we report a multicenter experience with infected EVAR, symptoms, and options for explantation and their outcome. METHODS: We have reviewed all consecutive endograft explants for infection at 11 French university centers following EVAR, defined as index EVAR, from 1998 to 2015. Diagnosis of infected aortic endograft was made on the basis of clinical findings, cultures, imaging studies, and intraoperative findings...
October 5, 2016: Journal of Vascular Surgery
Evelien P J G Neis, S Sabrkhany, I Hundscheid, D Schellekens, K Lenaerts, S W Olde Damink, E E Blaak, C H C Dejong, Sander S Rensen
Plasma levels of several amino acids are correlated with metabolic dysregulation in obesity and type 2 diabetes. To increase our understanding of human amino-acid metabolism, we aimed to determine splanchnic interorgan amino-acid handling. Twenty patients planned to undergo a pylorus preserving pancreatico-duodenectomy were included in this study. Blood was sampled from the portal vein, hepatic vein, superior mesenteric vein, inferior mesenteric vein, splenic vein, renal vein, and the radial artery during surgery...
October 6, 2016: Amino Acids
Yun Zhang, Jian Zhang, Tao Xu, Wei Wu, Fang-Fang Huang, Wen-Qiao Yu, Shao-Yang Zhang, Ting-Bo Liang
BACKGROUND: Intestinal dendritic cells play important roles in regulating the function of the intestinal immune barrier and the intestinal bacterial translocation. In this study, we aim to investigate the effects of allicin on the function of mesenteric lymph node-dendritic cells after trauma/hemorrhagic shock. METHODS: One hundred and eight-four Sprague-Dawley rats were randomly assigned into a sham group (n = 46), sham + allicin group (n = 46), trauma/hemorrhagic shock group (n = 46), and trauma/hemorrhagic shock + allicin group (n = 46)...
October 3, 2016: Surgery
Takayoshi Kimura, Satoru Murata, Shiro Onozawa, Takahiko Mine, Tatsuo Ueda, Fumie Sugihara, Daisuke Yasui, Izumi Miki, Shinichiro Kumita, Toshihide Ogawa
We report the case of a man in his 70s who suffered from intestinal infarction caused by acute portal vein and mesenteric vein thrombosis (PVMVT). Combination therapy with percutaneous transcatheter thrombectomy and surgical bowel resection was successfully performed, and a satisfactory outcome was achieved. Intestinal infarction caused by PVMVT can be fatal and has a high mortality rate even if surgical resection is performed. The combination therapy of interventional radiology and surgery might be a safe and effective method for patients with this life-threatening condition...
September 2016: Yonago Acta Medica
Wentao Gao, Xinglong Dai, Cuncai Dai, Kuirong Jiang, Junli Wu, Qiang Li, Feng Guo, Jianmin Chen, Jishu Wei, Zipeng Lu, Min Tu, Yi Miao
INTRODUCTION: Few studies have compared patency rates of the different methods of venous reconstruction (VR) during a pancreatectomy. This study aimed to evaluate the patency rates and the clinical impact of various reconstruction methods. METHODS: For the meta-analysis, databases were systematically searched to identify studies reporting the outcomes of patients who underwent PVR/SMVR. For the retrospective study, clinical data were retrospectively analyzed from patients who underwent a pancreatectomy and VR between Feb...
September 20, 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
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
Jun Watanabe, Mitsuyoshi Ota, Yusuke Suwa, Atsushi Ishibe, Hidenobu Masui, Kaoru Nagahori
PURPOSE: The treatment of splenic flexural colon cancer is not standardized because the lymphatic drainage is variable. The aim of this study is to evaluate the lymph flow at the splenic flexure. METHODS: From July 2013 to January 2016, consecutive patients of the splenic flexural colon cancer with a preoperative diagnosis of N0 who underwent laparoscopic surgery were enrolled. Primary outcome is frequency of the direction of lymph flow from splenic flexure. We injected indocyanine green (2...
October 1, 2016: International Journal of Colorectal Disease
Marc Dilauro, Matthew D F McInnes, Nicola Schieda, Ania Z Kielar, Raman Verma, Cynthia Walsh, Andrey Vizhul, William Petrcich, Joseph Mamazza
Purpose To evaluate the accuracy of computed tomography (CT) for diagnosis of internal hernia (IH) in patients who have undergone laparoscopic Roux-en-Y gastric bypass and to develop decision tree models to optimize diagnostic accuracy. Materials and Methods This was a retrospective, ethics-approved study of patients who had undergone laparoscopic Roux-en-Y gastric bypass with surgically confirmed IH (n = 76) and without IH (n = 78). Two radiologists independently reviewed each examination for the following previously established CT signs of IH: mesenteric swirl, small-bowel obstruction (SBO), mushroom sign, clustered loops, hurricane eye, small bowel behind the superior mesenteric artery, and right-sided anastomosis...
September 30, 2016: Radiology
Bari Dane, Jaclyn Clark, Alec Megibow
OBJECTIVE: The purpose of this study is to review multidetector computed tomography (CT) imaging findings of mesenteric venous thrombosis occurring following bariatric surgery. To our knowledge, this complication has not been described in the radiologic literature. METHODS: Multidetector CT examinations of 6 patients known to have developed mesenteric venous thrombosis after laparoscopic bariatric surgery were reviewed. The thrombus was characterized, and associated imaging findings including presence of mesenteric edema, small bowel edema, and thrombotic complications were described...
September 27, 2016: Journal of Computer Assisted Tomography
Vojko Flis, Stojan Potrc, Nina Kobilica, Arpad Ivanecz
BACKGROUND: Recent reports have shown that patients with vascular tumour invasion who undergo concurrent vascular resection can achieve long-term survival rates equivalent to those without vascular involvement requiring pancreaticoduodenectomy alone. There is no consensus about which patients benefit from the portal-superior mesenteric vein resection and there is no consensus about the best surgical technique of vessel reconstruction (resection with or without graft reconstruction). As published series are small the aim of this study was to evaluate our experience in pancreatectomies with en bloc vascular resection and reconstruction of vessels...
September 1, 2016: Radiology and Oncology
Kun Liu, Wen-Dong Li, Xiao-Long Du, Cheng-Long Li, Xiao-Qiang Li
OBJECTIVE: To evaluate the safety and efficacy of indirect thrombolysis via the superior mesenteric artery in patients with acute portal vein thrombosis. METHODS: Over 10 years, we studied the safety and efficacy of indirect thrombolysis via the superior mesenteric artery in 34 patients with acute portal vein thrombosis. Eighteen patients were categorized as the systemic thrombolysis group (ST) and 16 as the catheter thrombolysis group (CT). The ST group was administered low-molecular-weight heparin and patients in the CT group received catheter thrombolysis...
September 23, 2016: Annals of Vascular Surgery
Lenka Tomasova, Leszek Dobrowolski, Halina Jurkowska, Maria Wróbel, Tomasz Huc, Karol Ondrias, Ryszard Ostaszewski, Marcin Ufnal
Research suggests that hydrogen sulfide (H2S) is an important biological mediator involved in various physiological processes including the regulation of arterial blood pressure (BP). Although H2S is abundant in the colon, the effects of gut-derived H2S on the circulatory system have not yet been investigated. We studied the effects of intracolonic administration of Na2S, a H2S donor, on systemic hemodynamics. Hemodynamics were recorded in anesthetized, normotensive Wistar Kyoto and spontaneously hypertensive rats at baseline and after intracolonic injection of either saline (controls) or Na2S·9H2O saline solution at a dose range of 10-300 mg/kg of BW...
September 22, 2016: Nitric Oxide: Biology and Chemistry
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
I Sukhotnik, N Nissimov, Y Ben Shahar, D Moati, N Bitterman, Y Pollak, D Berkowitz, A G Coran, A Bitterman
PURPOSE: Fenofibrate (FEN) is known as a nuclear receptor activator which regulates many pathophysiological processes, such as oxidative stress, inflammation, and leukocyte endothelium interactions. Recent studies have demonstrated an anti-oxidant, anti-inflammatory, and anti-ischemic role of FEN in the attenuation of ischemia-reperfusion (IR) injury in the kidney, liver, brain, and heart. The purpose of the present study was to examine the effect of FEN on intestinal recovery and enterocyte turnover after intestinal IR injury in rats...
September 20, 2016: Pediatric Surgery International
Pietro Addeo, Gennaro Nappo, Emanuele Felli, Constantin Oncioiu, François Faitot, Philippe Bachellier
Nowadays, pancreaticoduodenectomies (PD) with an "en-bloc" resection of the spleno-mesenterico-portal (SMP) venous axis are safely performed at tertiary centers for patients presenting venous invasion. However, for tumors infiltrating the SMP confluence optimal management of the splenic vein (SV) remains a matter of debate. Simple SV ligation has been associated with the development of sinistral portal hypertension, gastrointestinal bleeding and hypersplenism over the long term. To avoid these complications, reconstructive methods such as the direct implantation of the SV into a SMP "neoconfluence", the inferior mesenteric vein-SV anastomosis and the distal spleno-renal shunt have been reported...
September 20, 2016: Updates in Surgery
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