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Critical ischemia

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https://www.readbyqxmd.com/read/28721011/effect-of-picroside-ii-on-hind-limb-ischemia-reperfusion-injury-in-rats
#1
Yiğit Kılıç, Abdullah Özer, Tolga Tatar, Mustafa Hakan Zor, Mehmet Kirişçi, Hakan Kartal, Ali Doğan Dursun, Deniz Billur, Mustafa Arslan, Ayşegül Küçük
INTRODUCTION: Many structural and functional damages are observed in cells and tissues after reperfusion of previously viable ischemic tissues. Acute ischemia reperfusion (I/R) injury of lower extremities occurs especially when a temporary cross-clamp is applied to the abdominal aorta during aortic surgery. Research regarding the treatment of I/R injury has been increasing day-by-day. In this study, we aimed to investigate the effect of picroside II on skeletal muscle of rats experiencing simulated I/R...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28717067/barthel-index-and-outcome-of-open-bypass-for-critical-limb-ischemia
#2
Shinsuke Mii, Atsushi Guntani, Eisuke Kawakubo, Hirofumi Shimazoe
BACKGROUND: Daily activity should be an important factor to consider when deciding on a treatment strategy for critical limb ischemia (CLI), and we hypothesized that there was a close relationship between activities of daily living (ADL) and prognosis. The aim of this study was to investigate the association between ADL and outcomes of open bypass for CLI.Methods and Results:A total of 226 patients undergoing infrainguinal bypass for CLI between January 2005 and December 2015 were reviewed...
July 15, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28715513/percutaneous-endovascular-treatment-of-infrainguinal-paod-results-of-the-psi-register-study-in-74%C3%A2-german-vascular-centers
#3
C-A Behrendt, F Heidemann, K Haustein, R T Grundmann, E S Debus
BACKGROUND: The percutaneous infrainguinal stent (PSI) register study aimed to collate all percutaneous endovascular procedures for infrainguinal peripheral arterial occlusive disease (PAOD) conducted in 74 German vascular centers between September and November 2015 (3 months). In order to obtain representative results all consecutive treatment procedures had to be submitted by the participating trial centers. MATERIAL AND METHODS: This was a prospective, nonrandomized multicenter study design...
2017: Gefässchirurgie: Zeitschrift Für Vaskuläre und Endovaskuläre Chirurgie
https://www.readbyqxmd.com/read/28714619/-intermittent-claudication-and-critical-limb-ischemia-from-diagnosis-to-management
#4
Pierre-Henri Morère
In case of atheromatous disease, the practitioner should be part of a multidisciplinary decision due to the associated comorbities. The angiologic assessment is of paramount importance in the diagnosis of peripheral artery disease even when the diagnosis seems clear. Unfortunately the patient is very often straightforward sent to radiological investigations who are faster. In all stages of peripheral artery disease, the medical treatment should be tried first except in case of critical limb ischemia where an invasive approach must be performed for revascularisation...
March 1, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28714516/-epigallocatechin-3-gallate-attenuates-myocardial-injury-induced-by-ischemia-reperfusion-in-diabetic-rats-and-in-h9c2-cells-under-hyperglycemic-conditions
#5
Yang Wu, Zhong-Yuan Xia, Bo Zhao, Yan Leng, Juan Dou, Qing-Tao Meng, Shao-Qing Lei, Zhi-Ze Chen, Jie Zhu
(-)-Epigallocatechin gallate (EGCG) exerts multiple beneficial effects on cardiovascular performance. In this study, we aimed to examine the effects of EGCG on diabetic cardiomyopathy during myocardial ischemia/reperfusion (I/R) injury. EGCG (100 mg/kg/day) was administered at week 6 for 2 weeks to diabetic rats following the induction of type 1 diabetes by streptozotocin (STZ). At the end of week 8, the animals were subjected to myocardial I/R injury. The EGCG-elicited structural and functional effects were analyzed...
August 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28713599/lyme-carditis-buried-beneath-st-segment-elevations
#6
Basia Michalski, Adrian Umpierrez De Reguero
Lyme disease is caused by the spirochete Borrelia burgdorferi and is carried to human hosts by infected ticks. There are nearly 30,000 cases of Lyme disease reported to the CDC each year, with 3-4% of those cases reporting Lyme carditis. The most common manifestation of Lyme carditis is partial heart block following bacterial-induced inflammation of the conducting nodes. Here we report a 45-year-old gentleman that presented to the hospital with intense nonradiating chest pressure and tightness. Lab studies were remarkable for elevated troponins...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28712733/long-term-outcomes-after-autogenous-versus-synthetic-lower-extremity-bypass-in-patients-on-hemodialysis
#7
Isibor Arhuidese, Caitlin W Hicks, Satinderjit Locham, Tammam Obeid, Besma Nejim, Mahmoud B Malas
BACKGROUND: Hemodialysis dependence confers unique physiologic conditions. Prior reports of outcomes after infrainguinal open bypass operations in patients on hemodialysis have been based on relatively small sample institutional series. In this study, we evaluate long-term outcomes after open bypass operations in a large contemporary population-based cohort of hemodialysis patients. We studied all hemodialysis patients who underwent infrainguinal open operation using autogenous versus prosthetic conduits in the United States Renal Data System between January 2007 and December 2011...
July 13, 2017: Surgery
https://www.readbyqxmd.com/read/28705338/-femoropopliteal-angioplasty-short-and-mid-term-results
#8
M Ben Hammamia, M Ben Mrad, B Derbel, R Miri, J Ziadi, F Ghedira, R Denguir, T Kalfat
BACKGROUND: Percutaneous endovascular therapy is becoming a primary option for managing femoropopliteal occlusive disease. The purpose of this study was to evaluate the mid-term results of endovascular treatment of femoropopliteal arterial disease. METHODS: Femoropopliteal percutaneous transluminal angioplasty was performed on 162 consecutive limbs (160 patients) from January 2006 to January 2016. RESULTS: In our study, 87.6% of patients had critical limb ischemia...
July 2017: J Med Vasc
https://www.readbyqxmd.com/read/28703803/micu1-protects-against-myocardial-ischemia-reperfusion-injury-and-its-control-by-the-importer-receptor-tom70
#9
Qiang Xue, Haifeng Pei, Qinshe Liu, Mingjun Zhao, Jing Sun, Erhe Gao, Xinliang Ma, Ling Tao
Mitochondrial Ca(2+) overload is a main contributor to mitochondrial damage hence cardiomyocyte death in myocardial ischemia/reperfusion (MI/R) injury. MICU1 has been recently identified as an important regulator of mitochondrial Ca(2+) homeostasis. Here we try to identify the role of MICU1 in MI/R, and to investigate whether the mitochondrial importer receptor Tom70 possesses critical roles in the mitochondrial translocation of MICU1 and MI/R. Specific small interfering RNA (20 μg) against MICU1 and Tom70, and lentivirus vectors carrying the Tom70a sequences (3...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28701675/pathology-of-neointimal-calcification-in-very-late-restenosis-after-bare-metal-stent-implantation-for-superficial-femoral-artery
#10
Hiroyuki Jinnouchi, Katsumi Inoue, Yoshimitsu Soga, Yusuke Tomoi, Yohei Kobayashi, Seiichi Hiramori, Shinichi Shirai, Kenji Ando
A 60-year-old man, who had claudication in his right limb due to total occlusion of the right superficial femoral artery, received bare metal stents. Although the bare metal stents in the superficial femoral artery did not show restenosis 5 years after stent implantation, angiography revealed significant in-stent restenosis when he developed right critical limb ischemia at 8 years post implantation. Ballooning for in-stent lesions did not result in full expansion. His right limb was amputated above the knee due to progressive limb ischemia...
July 13, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28700007/impact-of-dexmedetomidine-on-amino-acid-contents-and-the-cerebral-ultrastructure-of-rats-with-cerebral-ischemia-reperfusion-injury
#11
Sheng Lin, Guangli Zhou, Wei Shao, Zhijian Fu
Purpose: To investigate the effects of dexmedetomidine (DEX) on amino acid contents and the cerebral ultrastructure of rats with cerebral ischemia-reperfusion injury (I/R). Methods: Thirty-six, male, Wistar rats were randomly divided into three groups: the sham operation group (group C), the ischemia-reperfusion group (group I/R), and the DEX group (group D). The middle cerebral artery occlusion model was prepared by the modified Longa method. The time of ischemia was 180 min, and 120 min after reperfusion, the amount of glutamate (Glu), and γ-aminobutyric acid (GABA) in the brain were measured, and the ultrastructure-level changes in the cerebral cortex were examined using electron microscopy...
June 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28697938/outcomes-of-endovascular-recanalization-versus-autogenous-venous-bypass-for-thromboangiitis-obliterans-patients-with-critical-limb-ischemia-due-to-tibioperoneal-arterial-occlusion
#12
Kaichuang Ye, Huihua Shi, Jinbao Qin, Minyi Yin, Xiaobing Liu, Weimin Li, Mi'er Jiang, Xinwu Lu
OBJECTIVE: This study sought to compare the outcomes of endovascular recanalization (ER) vs autogenous venous bypass (AVB) for tibioperoneal arterial occlusion in thromboangiitis obliterans patients with critical lower limb ischemia. METHODS: A total of 90 limbs in 75 patients, successfully treated with ER (ER group, 35 patients, 43 limbs) and AVB (AVB group, 40 patients, 47 limbs) for tibioperoneal arterial occlusions from January 2009 to December 2015 in a single institution, were retrospectively analyzed...
July 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28697789/improvement-in-asymmetric-dimethylarginine-and-oxidative-stress-in-patients-with-limb-salvage-after-autologous-mononuclear-stem-cell-application-for-critical-limb-ischemia
#13
Juraj Madaric, Martina Valachovicova, Ludovit Paulis, Jana Pribojova, Renata Mateova, Katarina Sebekova, Luba Postulkova, Terezia Madaricova, Maria Bucova, Martin Mistrik, Ivan Vulev
BACKGROUND: Asymmetric dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide synthase, acts as an inhibitor of angiogenesis and is associated with an increased risk of cardiovascular mortality. Administration of stem cells may affect endogenous mechanisms that regulate ADMA production and metabolism. The aim of the present study was to analyze ADMA concentration and changes in oxidative stress in patients with advanced critical limb ischemia (CLI) after bone marrow-derived mononuclear cell (BM-MNC) therapy...
July 12, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28697694/midterm-outcomes-from-a-pilot-study-of-percutaneous-deep-vein-arterialization-for-the-treatment-of-no-option-critical-limb-ischemia
#14
Steven Kum, Yih Kai Tan, Michiel A Schreve, Roberto Ferraresi, Ramon L Varcoe, Andrej Schmidt, Dierk Scheinert, Jihad A Mustapha, Darryl M Lim, Derek Ho, Tjun Y Tang, Vlad-Adrian Alexandrescu, Pramook Mutirangura
PURPOSE: To report the initial clinical experience with percutaneous deep vein arterialization (PDVA) to treat critical limb ischemia (CLI) via the creation of an arteriovenous fistula. METHODS: Seven patients (median age 85 years; 5 women) with CLI and no traditional endovascular or surgical revascularization options (no-option CLI) were recruited in a pilot study to determine the safety of PDVA. All patients were diabetic; 4 had Rutherford category 6 ischemia...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28696266/thirty-day-readmissions-for-critical-limb-ischemia-ready-for-a-new-quality-metric
#15
EDITORIAL
Patrick M Looser, Dmitriy N Feldman
No abstract text is available yet for this article.
July 11, 2017: Circulation
https://www.readbyqxmd.com/read/28693689/neuroprotective-effects-of-grape-seed-procyanidin-extract-on-ischemia-reperfusion-brain-injury-%C3%A2
#16
Kong Xiangyi, Guan Jian, Gong Shun, Wang Renzhi
<strong>Objective</strong> Oxidative stress (OS) plays a crucial role in ischemic stroke. Grape seed procyanidin extract (GSPE) was reported to be a critical regulator of OS. We hypothesized that GSPE might also be protective in ischemia-reperfusion brain injury. This study aimed to explore whether GSPE administration can protect mice from ischemia-reperfusion brain injury.<strong>Methods</strong> Transient middle cerebral artery occlusion (MCAO) was conducted followed by reperfusion for 24 hours to make ischemia-reperfusion brain injury in mice that received GSPE (MCAOG, n=60) or normal saline (MCAONS, n=60)...
June 10, 2017: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28693409/long-term-outcomes-in-patients-with-critical-limb-ischemia-and-heart-failure-with-preserved-or-reduced-ejection-fraction
#17
Kavita B Khaira, Ellen Brinza, Gagan D Singh, Ezra A Amsterdam, Stephen W Waldo, Kathleen Tong, Kruti Pandya, John R Laird, Ehrin J Armstrong
The impact of heart failure (HF) on long-term survival in patients with critical limb ischemia (CLI) has not been well described. Outcomes stratified by left ventricular ejection fraction (EF) are also unknown. A single center retrospective chart review was performed for patients who underwent treatment for CLI from 2006 to 2013. Baseline demographics, procedural data and outcomes were analyzed. HF diagnosis was based on appropriate signs and symptoms as well as results of non-invasive testing. Among 381 CLI patients, 120 (31%) had a history of HF and 261 (69%) had no history of heart failure (no-HF)...
July 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28690998/results-of-infrainguinal-bypass-with-a-composite-graft-combining-polytetrafluoroethylene-and-vein-graft-in-absence-of-appropriate-saphenous-vein-graft
#18
Myung Jae Jin, Ui Jun Park, Hyoung Tae Kim, Young-Nam Roh
PURPOSE: Use of a composite graft combining a polytetrafluoroethylene graft with an autogenous vein is an option for limb salvage in the absence of an adequate single segment vein graft. We aimed to investigate the results of infrainguinal bypass with a composite graft. MATERIALS AND METHODS: We retrospectively reviewed 11 infrainguinal arterial bypasses on 11 limbs which underwent surgery from March 2012 to November 2016. RESULTS: Critical limb ischemia was common (63...
June 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/28690996/long-term-outcomes-of-femorofemoral-crossover-bypass-grafts
#19
Keun-Myoung Park, Yang-Jin Park, Young-Wook Kim, Dongho Hyun, Kwang Bo Park, Young-Soo Do, Dong-Ik Kim
PURPOSE: Femorofemoral crossover bypass (FCB) is a good procedure for patients with unilateral iliac artery disease. There are many articles about the results of FCB, but most of them were limited to 5 years follow-up. The purpose of our study was to analysis the results of FCB with a 10-year follow-up period. MATERIALS AND METHODS: Between January 1995 and December 2010, 133 patients were operated in Samsung Medical Center (median follow-up: 58.8 months). We retrospectively analysed patient characteristics, the preoperative treatment, the operative procedure, and material used...
June 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/28689942/life-expectancy-and-outcome-of-different-treatment-strategies-for-critical-limb-ischemia-in-the-elderly-patient
#20
S Klaphake, K de Leur, P G H Mulder, G H Ho, H G W Groot, E J Veen, L van der Laan
BACKGROUND: Treatment of critical limb ischemia (CLI) in the elderly patients is challenging because of the comorbidity and fragility of these patients. We analysed survival in relation to different treatment options, and estimated life expectancy of our study group by age and gender. METHODS: All patients aged ≥70 years, presenting with chronic CLI, between 2006 to 2013 were included. Treatment was conservative, endovascular, surgical or by primary major amputation...
July 6, 2017: Annals of Vascular Surgery
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