Purpose: To evaluate the effect of drug-coated balloon (DCB) with high-dose paclitaxel for the treatment of restenotic dysfunctional arteriovenous fistulae (AVFs).
Materials And Methods: In this single-arm, multicenter, prospective, observational study, 334 patients who underwent DCB angioplasty using IN.PACT AV (Medtronic, Plymouth, Minnesota) for the first time for restenotic lesions of dysfunctional AVFs between April 2021 and March 2022 were registered.
Background: Despite the widespread use of PROPATEN, a bioactive heparin-bonded expanded polytetrafluoroethylene graft, in bypass surgery, there are only a few reports of long-term results. We evaluated the long-term results of PROPATENuse for above-knee femoropopliteal bypass (AKFPB).
Methods And Results: After PROPATEN-based AKFPB, patients were prospectively registered at 20 Japanese institutions between July 2014 and October 2017 to evaluate long-term results.
Objective: There is no established consensus or guidelines for wound management after revascularization for patients with chronic limb-threatening ischemia (CLTI) without severe infection. This study is designed to evaluate the clinical effect of the wound management strategy on toe wounds after revascularization for CLTI.
Methods: This retrospective cohort study was performed at eight institutions affiliated with Keio University School of Medicine in Japan and included 261 patients who underwent revascularization for CLTI between April 2019 and July 2021.
Aim: This study aimed to predict cases of acute superior mesenteric artery (SMA) occlusion requiring bowel resection using occlusion site and time from symptom onset to diagnosis at five Japanese institutions. Advances in imaging, endovascular treatment, and perioperative management have improved the clinical outcomes of patients with acute SMA occlusion; however, in clinical practice it remains difficult to effectively determine patients requiring bowel resection.
Methods: We retrospectively analyzed the data of 48 patients (mean age: 82.
Purpose: To compare the long-term outcomes of the most widely used third-generation stent grafts, the Endurant and Excluder stent grafts, in Japanese patients using a multicenter registry.
Materials And Methods: A retrospective analysis of endovascular aneurysm repairs for abdominal aortic and iliac artery aneurysms using either the Endurant or the Excluder stent grafts from January 2012 to July 2019 at 10 Japanese hospitals was performed.
Results: A total of 332 and 378 repairs using the Endurant and Excluder stent grafts, respectively, were analyzed.
Background: This study prospectively analyzed the midterm results of above-the-knee femoropopliteal bypass (AKb) using bioactive heparin-bonded expanded polytetrafluoroethylene (HB-ePTFE) graft in patients with femoropopliteal occlusive disease.
Methods and results: This prospective, multicenter, non-randomized study reviewed limbs undergoing AKb with HB-ePTFE graft for femoropopliteal lesion in 20 Japanese institutions between July 2014 and October 2017. Primary efficacy endpoints were primary, primary assisted, and secondary graft patency.
Purpose: To describe a multi-center preliminary experience of treating prosthetic above knee femoropopliteal (AKFP) bypass occlusion by placing a Viabahn stent graft inside the occluded prosthetic bypass graft.
Materials And Methods: Retrospective analysis of consecutive 14 patients (mean age 73.2 ± 10.
Objective/background: It was hypothesised that a helical stent with expanded polytetrafluoroethylene (ePTFE) grafts could provide a preventive effect for external iliac artery (EIA) limb occlusion following endovascular aortic aneurysm repair (EVAR). Therefore, a post-hoc analysis of a Japanese multicentre database was conducted to assess the impact of the stent graft design on EIA limb occlusion rates.
Methods: Patients who underwent EVAR with EIA limb deployment between 2008 and 2016 were evaluated.
Objective: The applicability of early sac shrinkage as a predictor of a low risk of late complications after endovascular aneurysm repair (EVAR) in Asian populations has not been validated. This study aimed to analyze early sac shrinkage and its relationship with late complications in Asian people using a Japanese multicenter database. We also assessed the impact of endoleaks.
View Article and Find Full Text PDFA secondary aortoenteric fistula (SAEF) is a relatively rare complication of aortoiliac reconstructive surgery, often involving relatively fixed duodenal third portion and a vascular anastomosis. We observed a 52-year-old man with a recurrent right lower leg abscess following the erosion between ipsilateral bifurcated prosthetic graft limb and nonfixed jejunum. In situ graft-sparing surgical treatment with aggressive debridement was successfully performed.
View Article and Find Full Text PDFBackground: Spontaneous isolated superior mesenteric artery (SMA) dissection is a rare condition, and its clinical and angiographic courses are poorly defined. We aimed to monitor the morphological characteristics of spontaneous isolated SMA dissection using computed tomography (CT) over 2 years of follow-up, including the recovery process via vascular remodeling, and identify the factors that affect vascular remodeling using univariate analysis.
Methods and results: We retrospectively reviewed the medical records and morphological findings of 59 consecutive patients with spontaneous isolated SMA dissection between October 2007 and July 2014, which included 36 symptomatic and 23 asymptomatic patients.
Background: Clinically distinct differences exist between East Asian and Caucasian subjects, but data for type 2 endoleak (T2EL) are limited in the East Asian population. The aim of this study was to analyze the characteristics of East Asian T2EL using a Japanese multicenter database.
Methods And Results: Retrospective analysis of 832 endovascular aneurysm repairs performed from 2008 to 2014 were conducted.
Background: Sarpogrelate hydrochloride, a 5-hydroxytryptamine2 receptor antagonist, is known to prevent serotonin-induced neointimal hyperplasia. We examined the effect of this agent on allograft arteriosclerosis in a rat model of aortic transplantation.
Methods: Rats were given an aortic isograft or allograft and oral administration of either saline vehicle alone or 20mg/kg daily of sarpogrelate for 8 weeks.
Evaluation of glucose tolerance in rodent models is usually performed after intraperitroneal administration of glucose (intraperitoneal glucose tolerance test [IPGTT]), whereas in humans the test is performed with oral glucose. Hyperglycemia is a major clinical manifestation of burn injury. Our previous studies using IPGTT have demonstrated burn injury-induced insulin resistance and the beneficial effects of glucagon-like polypeptide-1 (GLP-1) in improving insulin resistance.
View Article and Find Full Text PDFFollowing severe burns and trauma injuries, the changes of neutrophil migratory phenotype are a double-edged sword. Activated neutrophils migrate into injured tissues and help contain microbial infections, but they can also enter normal tissues and damage vital organs. Depleting the neutrophils from circulation protects vital organs against neutrophil-induced damage but leaves the body exposed to infectious complications.
View Article and Find Full Text PDFBackground: The possible relation between menopause and the development of peripheral arterial disease, especially lower extremity disease, has not been fully studied. To explore this issue, we investigated whether estrogen deficiency affected neovascularization in a murine model of hindlimb ischemia.
Methods: Ischemia was surgically induced in one hindlimb of oophorectomized and control female BALB/c mice.
Splenic artery aneurysms (SAAs) are relatively rare. Moreover, there has been only one previous report of fibromuscular dysplasia (FMD) affecting the splenic artery alone. We describe a 64-year-old man with long, segmental, large, and multiple SAAs in whom the splenic artery branched from the aorta.
View Article and Find Full Text PDFCharacteristics of atherosclerotic isolated iliac artery aneurysms (IAAs) and various strategies for their treatment were assessed retrospectively. The computerized medical records of 18 patients who underwent surgical or endovascular treatment of an IAA during the 10 years from April 1993 to March 2003 at our university hospital were reviewed to obtain information on patient demographics, risk factors, type of IAA treatment, and outcome. Additional data were obtained by mail and telephone.
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