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Vascular occlusions

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https://www.readbyqxmd.com/read/28822662/morphologic-characteristics-and-endovascular-treatment-of-primary-infrarenal-aortic-dissections
#1
Wan Zhang, Zhenyu Shi, Weiguo Fu, Bin Chen, Xin Xu, Daqiao Guo
OBJECTIVE: We report the morphologic characteristics and endovascular treatment of primary infrarenal aortic dissections (PIRADs). METHODS: A retrospective study was conducted with 38 consecutive PIRAD patients between January 2010 and May 2016 in our vascular center. Patient demographics, morphologic characteristics, endovascular modalities, and periprocedural and follow-up outcomes were recorded. Patients with symptomatic PIRADs or asymptomatic PIRADs of a maximum diameter >30 mm were indicated for endovascular aneurysm repair (EVAR)...
August 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28822655/a-national-vascular-quality-initiative-database-comparison-of-hybrid-and-open-repair-for-aortoiliac-femoral-occlusive-disease
#2
Marco Zavatta, Matthew W Mell
OBJECTIVE: We sought to analyze the outcomes of revascularization for aortoiliac-femoral occlusive disease by comparing hybrid repair by endovascular revascularization and open common femoral endarterectomy (ER-CFE) with open aortoiliac reconstruction and CFE (OR-CFE). METHODS: Using the national Society for Vascular Surgery Vascular Quality Initiative database from 2009 to 2015, we identified all patients receiving open or endovascular revascularization of the aortoiliac system and who additionally underwent CFE...
August 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28820981/risk-factors-for-postoperative-acute-mesenteric-ischemia-among-adult-patients-undergoing-cardiac-surgery-a-systematic-review-and-meta-analysis
#3
Qi-Wen Deng, Wen-Cheng Tan, Bing-Cheng Zhao, Wen-Tao Deng, Miao Xu, Wei-Feng Liu, Ke-Xuan Liu
PURPOSE: We aimed to seek risk factors for AMI among adult patients undergoing cardiac surgery. MATERIALS AND METHODS: We searched electronic bibliographic databases for studies reporting risk factors for AMI among adult patients undergoing cardiac surgery. Pooled odds ratios (OR) and standard mean differences (SMD or MD) for risk factors between AMI and control group were estimated. RESULTS: 11 studies with 67,195 patients met the inclusion criteria...
August 12, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28819879/lower-extremity-bypass-using-bovine-carotid-artery-graft-artegraft-an-analysis-of-124-cases-with-long-term-results
#4
Philip Lindsey, Angela Echeverria, Mathew Cheung, Elias Kfoury, Carlos F Bechara, Peter H Lin
INTRODUCTION: Although biological grafts have been utilized as a vascular conduit in leg bypass for many years, reports of a bovine carotid artery graft (BCAG) in lower extremity revascularization have been scarce. This study analyzed the outcome of lower leg bypass using BCAG. METHODS: A retrospective review of a prospectively collected database of all patients undergoing lower extremity bypass using BCAG from 2002 to 2017 was performed. Clinical outcomes including graft patency and limb salvage were evaluated...
August 17, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28819497/-volvulus-of-the-small-intestine-caused-by-mesenteric-lipoma
#5
Papa Alassane Mbaye, Aime Lakh Faye, Aloise Sagna, Ndeye Aby Ndoye, Ndeye Fatou Seck, Oumar Ndour, Gabriel Ngom
We report the case of a 7-year old girl presenting with sub-occlusive syndrome associated with acute paroxysmal abdominal pain at the level of the upper abdomen, vomiting and no evacuation of faeces. Physical examination showed discomfort with palpation of the upper abdomen. Abdominal ultrasound showed poorly limited intraperitoneal tissue formation without vascular features on doppler, exercising a mass effect on the neighborhood structures; mesenteric vessels were in their normal position. This mass on CT scan scorresponded to a well limited lipomatous formation exercising a mass effect on the caecum associated with volvulus of the small intestine...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28817384/engineering-the-mechanical-and-biological-properties-of-nanofibrous-vascular-grafts-for-in-situ-vascular-tissue-engineering
#6
Jeffrey J D Henry, Jian Yu, Aijun Wang, Randall Lee, Jun Fang, Song Li
Synthetic small diameter vascular grafts have a high failure rate, and endothelialization is critical for preventing thrombosis and graft occlusion. A promising approach is in situ tissue engineering, whereby an acellular scaffold is implanted and provides stimulatory cues to guide the in situ remodeling into a functional blood vessel. An ideal scaffold should have sufficient binding sites for biomolecule immobilization and a mechanical property similar to native tissue. Here we developed a novel method to blend low molecular weight (LMW) elastic polymer during electrospinning process to increase conjugation sites and to improve the mechanical property of vascular grafts...
August 17, 2017: Biofabrication
https://www.readbyqxmd.com/read/28816935/perimesencephalic-nonaneurysmal-subarachnoid-hemorrhage-caused-by-transverse-sinus-thrombosis-a-case-report-and-review-of-literature
#7
Fang-Wang Fu, Jie Rao, Yuan-Yuan Zheng, Liang Song, Wei Chen, Qi-Hui Zhou, Jian-Guang Yang, Jiang-Qiong Ke, Guo-Qing Zheng
RATIONALE: Perimesencephalic nonaneurysmal subarachnoid hemorrhage (PNSAH) is characterized by a pattern of extravasated blood restricted to the perimesencephalic cisterns, normal angiographic findings, and an excellent prognosis with an uneventful course and low risks of complication. The precise etiology of bleeding in patients with PNSAH has not yet been established. The most common hypothesis is that PNSAH is venous in origin. Intracranial venous hypertension has been considered as the pivotal factor in the pathogenesis of PNSAH...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28814429/nintedanib-macrophage-activation-and-ameliorates-vascular-and-fibrotic-manifestations-in-the-fra2-mouse-model-of-systemic-sclerosis
#8
Jingang Huang, Christiane Maier, Yun Zhang, Alina Soare, Clara Dees, Christian Beyer, Ulrike Harre, Chih-Wei Chen, Oliver Distler, Georg Schett, Lutz Wollin, Jörg H W Distler
BACKGROUND: Nintedanib is an inhibitor targeting platelet-derived growth factor receptor, fibroblast growth factor receptor and vascular endothelial growth factor receptor tyrosine kinases that has recently been approved for the treatment of idiopathic pulmonary fibrosis. The aim of this study was to analyse the effects of nintedanib in the fos-related antigen-2 (Fra2) mouse model of systemic sclerosis (SSc). METHODS: The effects of nintedanib on pulmonary arterial hypertension with proliferation of pulmonary vascular smooth muscle cells (PVSMCs) and luminal occlusion, on microvascular disease with apoptosis of microvascular endothelial cells (MVECs) and on fibroblast activation with myofibroblast differentiation and accumulation of extracellular matrix were analysed...
August 16, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28814423/portal-hypertension-and-its-management-in-children
#9
REVIEW
Tassos Grammatikopoulos, Patrick James McKiernan, Anil Dhawan
Portal hypertension (PHT), defined as raised intravascular pressure in the portal system, is a complication of chronic liver disease or liver vascular occlusion. Advances in our ability to diagnose and monitor the condition but also predict the risk of gastrointestinal bleeding have enabled us to optimise the management of children with PHT either at a surveillance or at a postbleeding stage. A consensus among paediatric centres in the classification of varices can be beneficial in streamlining future paediatric studies...
August 16, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28814167/cardio-cephalic-neural-crest-syndrome-a-novel-hypothesis-of-vascular-neurocristopathy
#10
M Komiyama
A novel hypothesis proposes that "cardio-cephalic neural crest (NC) syndrome," i.e. cephalic NC including cardiac NC, contributes to the concurrent occurrence of vascular diseases in the cardio- and cerebrovascular regions. NC is a transient structure present in early embryogenesis. Cephalic NC provides mesenchymal cells to the vascular media in these regions. Concurrent cardio- and cerebrovascular lesions have been reported in PHACE syndrome, ACTA2 mutation syndrome, and less frequently in the spontaneous occlusion of the circle of Willis (so-called moyamoya disease)...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28813710/is-endoscopic-vasectomy-just-a-dream-an-ex-vivo-study-on-feasibility-and-reliability-of-endoluminal-occlusion-of-porcine-vas-deferens
#11
Daniel Schlager, Moritz Maas, Simon Hein, Fabian Adams, Martin Schoenthaler, Bjoern Spittau, Ulrich Wetterauer, Arkadiusz Miernik
INTRODUCTION AND AIM: Surgical vasectomy remains the gold standard for fertility control in men. Endoluminal occlusion of the seminal ducts, thus avoiding an external incision, may become an appealing alternative to this approach. As our group has shown, nontraumatic endoscopic inspection of the seminal ducts is feasible in the human cadaver. We investigated the feasibility and reliability of occlusion using several commercially available medical sealing agents in the porcine vas deferens (VD)...
August 17, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28811382/an-engineered-s1p-chaperone-attenuates-hypertension-and-ischemic-injury
#12
Steven L Swendeman, Yuquan Xiong, Anna Cantalupo, Hui Yuan, Nathalie Burg, Yu Hisano, Andreane Cartier, Catherine H Liu, Eric Engelbrecht, Victoria Blaho, Yi Zhang, Keisuke Yanagida, Sylvain Galvani, Hideru Obinata, Jane E Salmon, Teresa Sanchez, Annarita Di Lorenzo, Timothy Hla
Endothelial dysfunction, a hallmark of vascular disease, is restored by plasma high-density lipoprotein (HDL). However, a generalized increase in HDL abundance is not beneficial, suggesting that specific HDL species mediate protective effects. Apolipoprotein M-containing HDL (ApoM(+)HDL), which carries the bioactive lipid sphingosine 1-phosphate (S1P), promotes endothelial function by activating G protein-coupled S1P receptors. Moreover, HDL-bound S1P is limiting in several inflammatory, metabolic, and vascular diseases...
August 15, 2017: Science Signaling
https://www.readbyqxmd.com/read/28810992/two-new-effective-tourniquets-for-potential-use-in-the-military-environment-a-serving-soldier-study
#13
Alastair Beaven, Rob Briard, Mark Ballard, Paul Parker
BACKGROUND: Limb tourniquets have been used extensively during modern Middle Eastern conflicts. Despite its undeniable successes, the combat applied tourniquet (C-A-T) has some shortfalls, principally its inability to reliably control lower limb bleeding when applied to the mid-thigh. We tested two tourniquets which may represent an improvement to the combat applied tourniquet; the tactical mechanical tourniquet and the tactical pneumatic tourniquet. METHODS: We recruited 12 healthy service personnel and applied the tactical mechanical tourniquet and tactical pneumatic tourniquet to both lower limbs in a randomly generated sequence...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810636/necessity-of-heparin-for-maintaining-peripheral-venous-catheters-a-systematic-review-and-meta-analysis
#14
Tao You, Jianliang Jiang, Jianchang Chen, Weiting Xu, Li Xiang, Yang Jiao
Heparin has typically been used as a flushing or infusion solution for vascular lines in daily practice. However, several clinical trials have yielded controversial results about the benefits of heparin in maintaining peripheral venous catheters. The present meta-analysis was conducted to evaluate the efficacy of heparin on the patency profiles and complications in peripheral intravenous catheters. PubMed, Embase and Cochrane Central Register of Controlled Trials were searched up to February 2016 for randomized controlled trials comparing heparin with placebo in maintaining peripheral intravenous catheters...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810239/the-prevalence-of-and-factors-related-to-vascular-hyperintensity-on-t1-weighted-imaging-in-acute-ischemic-stroke
#15
Yuki Sakamoto, Seiji Okubo, Chikako Nito, Satoshi Suda, Noriko Matsumoto, Arata Abe, Junya Aoki, Takashi Shimoyama, Kanako Muraga, Takuya Kanamaru, Kentaro Suzuki, Yuki Go, Masahiro Mishina, Kazumi Kimura
BACKGROUND: Thrombus visualization in patients with acute ischemic stroke has been detected and reported using various imaging modalities. T1-weighted imaging (T1-WI) can depict thrombi as hyperintense signals within vessels. Moreover, in addition to thrombi, T1-WI hyperintensities in arteries may suggest arterial dissection. However, the frequency of and factors related to the T1-hyperintense vessel sign (T1-HVS) are not fully known. The aim of this study was to clarify the prevalence of and related factors for the T1-HVS in patients with acute ischemic stroke...
August 16, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28810002/retinal-oximetry-discovers-novel-biomarkers-in-retinal-and-brain-diseases
#16
Einar Stefánsson, Olof Birna Olafsdottir, Anna Bryndis Einarsdottir, Thorunn Scheving Eliasdottir, Thor Eysteinsson, Wouter Vehmeijer, Evelien Vandewalle, Toke Bek, Sveinn Hakon Hardarson
Purpose: Biomarkers for several eye and brain diseases are reviewed, where retinal oximetry may help confirm diagnosis or measure severity of disease. These include diabetic retinopathy, central retinal vein occlusion (CRVO), retinitis pigmentosa, glaucoma, and Alzheimer's disease. Methods: Retinal oximetry is based on spectrophotometric fundus imaging and measures oxygen saturation in retinal arterioles and venules in a noninvasive, quick, safe manner. Retinal oximetry detects changes in oxygen metabolism, including those that result from ischemia or atrophy...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28806315/nonarteritic-jaw-claudication
#17
Christine A Petersen, Courtney E Francis
A 60-year-old woman with decreased visual acuity in her right eye and right-sided jaw claudication was found to have ocular ischemic syndrome secondary to complete occlusion of the brachiocephalic artery. Although jaw claudication is often considered to be pathognomonic for giant cell arteritis, it has a broad differential diagnosis including both vascular and nonvascular conditions.
September 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28805772/-diagnosis-and-treatment-of-extracranial-internal-carotid-artery-lesion-combined-with-cerebrovascular-malformation
#18
A I Khripun, A D Pryamikov, A B Mironkov, S A Asratyan, I N Tyurin, V S Suryakhin, M V Abashin, V P Mikhaylenko
AIM: To analyze own experience of diagnosis and treatment of patients with extracranial internal carotid artery lesion and cerebrovascular malformations. MATERIAL AND METHODS: There were 16 patients with combined lesion of extracranial and intracranial internal carotid artery for the period January 2013 - December 2014. Occlusive-stenotic lesion and tortuosity of ICA were observed in 11 and 5 cases respectively. RESULTS: Incidence of combined ICA lesion was 5...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28805538/effects-of-far-infrared-therapy-on-arteriovenous-fistulas-in-hemodialysis-patients-a-meta-analysis
#19
Qingsong Wan, Shikun Yang, Li Li, Fenfen Chu
BACKGROUND: Far infrared (FIR) therapy may have a beneficial effect on maturity and function of arteriovenous fistulas (AVFs) in hemodialysis (HD) patients. Therefore, we performed this pooled analysis to assess the protective effects of FIR therapy in HD patients. METHODS: The randomized controlled trials (RCTs) and quasi-RCTs of FIR therapy for HD patients were searched from multiple databases. Relevant studies were screened according to the predefined inclusion criteria...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28803451/laparoscopic-hepatectomy-combined-with-endoscopic-papillary-balloon-dilation-for-complex-bile-duct-stones
#20
Jian Yang, Fabiao Zhang, Xuefeng Du, Aidong Wang, Shangdong Lv, Zheping Fang
BACKGROUND: We evaluated the feasibility and efficacy of laparoscopic hepatectomy (LH) combined with endoscopic papillary balloon dilation (EPBD) for removing intra- and extrahepatic bile duct stones. METHODS: A total of 26 patients with intra- and extrahepatic bile duct stones underwent LH and EPBD. Selective hemi-hepatic vascular occlusion was used to complete the LH. EPBD was performed under the guidance of a guidewire, and stones were removed with a stone basket or balloon...
August 13, 2017: ANZ Journal of Surgery
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