Abstract：
PURPOSE:Our purpose was to investigate the hemodynamic theory that the blood flow rate through a stenotic arterial graft is limited by the onset of turbulence, which acts as a barrier at peak systole against further increases in systolic flow. METHODS:We used duplex ultrasonography to examine 25 stenotic infrainguinal vein grafts. Theory predicts that the flow limitation occurs at peak systole at a stenotic velocity greater than 250 cm/sec, which corresponds to a residual stenotic lumenal diameter of 0.36 cm (Reynolds No. 2000). These numbers are based on the assumption that the 68 ml/min blood flow is supplied by the femoropopliteal graft to the resting lower leg only during systole. When the lumen is smaller than 0.36, peak systolic velocity (PSV) must exceed 250 cm/sec. The increased velocity results in poststenotic turbulence. This turbulent condition restricts the average graft systolic flow to less than the 68 ml/min required by the lower leg, so diastolic flow is needed to make up the deficit. RESULTS:Twenty vein grafts with PSVs of 250 cm/sec or greater had end-diastolic velocities of 50 cm/sec or greater as predicted; three grafts with PSVs of 256 to 300 cm/sec and two grafts with PSVs of less than 250 cm/sec had no forward diastolic flow. CONCLUSION:The onset of turbulence in a stenotic vein graft supplying the lower leg occurs at a PSV of 250 cm/sec or greater. The appearance of diastolic flow maintains the average graft volume flow.
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Papanicolaou G,Beach KW,Zieler RE,Strandness DE Jrdoi
10.1016/s0741-5214(96)80003-6subject
Has Abstractpub_date
1996-03-01 00:00:00pages
394-400issue
3eissn
0741-5214issn
1097-6809pii
S0741521496000274journal_volume
23pub_type
杂志文章abstract：:An association has been reported between Wiskott-Aldrich syndrome and necrotizing vasculitis and aneurysmal arterial dilatation. We present here the first endovascular repair of descending thoracic aortic aneurysm in a 35-year-old male patient with the classical Wiskott-Aldrich syndrome phenotype. He had a successful ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2012.12.081
更新日期：2013-11-01 00:00:00
abstract：:Mesenteric prosthetic graft infection is a rare and challenging clinical scenario. A patient is described who developed recurrent abdominal pain after occlusion of an iliomesenteric prosthetic bypass. Endovascular recanalization of the native superior mesenteric artery, which had been occluded for more than 10 years, ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2012.10.069
更新日期：2013-05-01 00:00:00
abstract：OBJECTIVE:To investigate whether intermittent pneumatic compression (IPC) augments skin blood flow through transient suspension of local vasoregulation, the veno-arteriolar response (VAR), in healthy controls and in patients with peripheral arterial disease (PAD). METHODS:Nineteen healthy limbs and twenty-two limbs wi...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2008.07.016
更新日期：2008-12-01 00:00:00
abstract：PURPOSE:The purpose of this article was to report our long-term results of distal vertebral artery (DVA) reconstruction. METHOD:From 1978 to 2001 we performed 352 DVA reconstructions on 323 patients (177 men, 148 women; mean age, 60.0 +/- 12.1 years). Symptoms of vertebrobasilar insufficiency were present in 332 cases...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.2002.126092
更新日期：2002-09-01 00:00:00
abstract：BACKGROUND:Controversy exists surrounding gender outcome disparity and abdominal aortic aneurysm (AAA) repair. Previous reports have demonstrated worse outcomes for women undergoing open aneurysm repair (OAR); however, these differences are less evident with endovascular aneurysm repair (EVAR). Epidemiologic studies ha...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2019.01.086
更新日期：2019-12-01 00:00:00
abstract：OBJECTIVE:Deep venous arterialization (DVA) is a technique aimed at providing an option for chronic limb-threatening ischemia patients with no options except amputation. In patients with no outflow distal targets permitting bypass, DVA involves creating a connection between a proximal arterial inflow and a distal venou...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,评审
doi：10.1016/j.jvs.2019.10.085
更新日期：2020-06-01 00:00:00
abstract：OBJECTIVE:Increased vascularization is considered an important contributing factor for plaque vulnerability. Microvascular proliferative disease in patients with diabetes results in renal damage and visual loss. We assessed the hypothesis that vascularization in carotid atherosclerotic tissue is increased in diabetic p...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2011.04.061
更新日期：2011-11-01 00:00:00
abstract：OBJECTIVE:Accurate measurements of abdominal aortic aneurysms (AAAs) are required for surgical planning and monitoring over time. We have examined the feasibility of using a three-dimensional (3-D) ultrasound imaging system to derive quantitative measurements of interest from AAAs. METHODS:A normal aorta, a small AAA,...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.2001.112812
更新日期：2001-04-01 00:00:00
abstract：:We report the case of a 78-year-old man with coronary artery disease, chronic obstructive pulmonary disease, and chronic renal insufficiency with an enlarging 6.7-cm infrarenal abdominal aortic aneurysm. He also had a 4-cm right common iliac artery aneurysm, and right external iliac artery occlusion. The patient had a...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2013.05.105
更新日期：2014-06-01 00:00:00
abstract：PURPOSE:Animal models have been used to assess the function of vascular smooth muscle and endothelium of veins grafted into arterial circulation. The primary model consists of grafting the external jugular vein into the carotid artery of the rabbit. These studies suggest a selective increase in the responsiveness of th...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.1993.42071
更新日期：1993-07-01 00:00:00
abstract：BACKGROUND:Whereas thermal ablation of incompetent saphenous veins is highly effective, all heat-based ablation techniques require the use of perivenous subfascial tumescent anesthesia, involving multiple needle punctures along the course of the target vein. Preliminary evidence suggests that cyanoacrylate embolization...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.jvs.2014.11.071
更新日期：2015-04-01 00:00:00
abstract：OBJECTIVE:Despite the increased cardiovascular morbidity and mortality risk of patients with peripheral arterial disease, previous worldwide studies have documented undertreatment of cardiovascular risk factors in such patients. METHOD:The ATTEST study was an observational cross-sectional epidemiologic study. Patients...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2006.04.002
更新日期：2006-08-01 00:00:00
abstract：OBJECTIVE:Extracorporeal circulation is routinely used in thoracoabdominal aortic aneurysm repair to preserve blood perfusion. Despite this protective measure, acute and chronic kidney disorders can develop. Therefore, the aim of this study was to establish a new large-animal model to assess the efficacy of selective r...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2014.08.116
更新日期：2016-03-01 00:00:00
abstract：:We report the case of a 40-year-old woman with posttraumatic arteriovenous fistula of the right radialis indicis artery. The patient was admitted because a pulsatile lesion appeared on her hand after blunt trauma. Liquid sclerotherapy using 3% polidocanol in combination with distal protection using the rubber band tec...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2010.05.092
更新日期：2010-11-01 00:00:00
abstract：PURPOSE:This study was designed to determine whether magnetic resonance angiography (MRA) will allow preoperative management decisions without the need for contrast arteriography in patients with lower extremity ischemia caused by infrainguinal arterial occlusive disease. METHODS:Forty-five patients with lower extremi...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/s0741-5214(96)70241-0
更新日期：1996-05-01 00:00:00
abstract：OBJECTIVES:Brachiobasilic arteriovenous fistulas (BBAVF) can be performed in one or two stages. We compared primary failure rates, as well as primary and secondary patency rates of one- and two-stage BBAVF at two institutions. METHODS:Patients undergoing one- and two-stage BBAVF at two institutions were compared retro...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2011.01.064
更新日期：2011-06-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate and report our treatment policies in the management of nonpulmonary arterial aneurysms in Behçet disease and to assess the prognosis in a cohort of 25 patients diagnosed between 1996 and 2007 by formally reassessing their outcome at the present time. METHODS:We ident...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2011.07.049
更新日期：2012-01-01 00:00:00
abstract：OBJECTIVE:To compare the results of emergency open repair of acute (ruptured or symptomatic intact) abdominal aortic aneurysms with that of endovascular repair. METHODS:A systematic literature search was performed to identify series that reported comparative outcomes. PubMed, Embase, the randomized controlled trial (R...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jvs.2007.11.028
更新日期：2008-07-01 00:00:00
abstract：OBJECTIVE:To achieve an optimal sealing zone during endovascular aneurysm repair, the intended positioning of the proximal end of the endograft fabric should be as close as possible to the most caudal edge of the renal arteries. Some endografts exhibit a small offset between the radiopaque markers and the proximal fabr...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2017.05.092
更新日期：2018-05-01 00:00:00
abstract：OBJECTIVE:Surgical treatment of intact thoracoabdominal aortic aneurysm (TAAA) is crucial to prevent rupture but is associated with high perioperative mortality. We tested the hypothesis that provider volume of surgical treatment of TAAA is an important determinant of operative outcome. Patients and methods Clinical in...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/s0741-5214(03)00085-5
更新日期：2003-06-01 00:00:00
abstract：:Many surgeons advocate uniform performance of operative completion arteriography after leg bypass surgery to ensure technical success and to optimize short- and intermediate-term graft patency. To determine the impact of this practice on the outcome of reversed-vein bypass surgery and associated patient charges, we re...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/s0741-5214(96)80044-9
更新日期：1996-04-01 00:00:00
abstract：OBJECTIVE:Limb loss after lower extremity surgical revascularization occurs relatively frequently in patients receiving dialysis. The goal of the present study was to determine whether patients with milder degrees of renal insufficiency are also at risk for this complication. MATERIAL AND METHODS:This cohort study was...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2003.11.038
更新日期：2004-04-01 00:00:00
abstract：:A technique is presented for revascularization of patients having a groin wound infection, which minimizes the risk of recurrent graft infection. A femorofemoral bypass with a subcutaneous perineal tunnel is constructed farther from the infected groin wound than the standard subcutaneous suprapubic tunnel. The route o...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.1985.avs0020485
更新日期：1985-05-01 00:00:00
abstract：BACKGROUND:The mechanisms of neointima formation after synthetic vascular grafting are not clear. The aim of this study was to investigate the intima and perigraft adventitia remodeling process in terms of cell apoptosis versus proliferation after synthetic patch implantation. METHODS:Female Merino sheep were randomiz...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.2002.123749
更新日期：2002-08-01 00:00:00
abstract：OBJECTIVE:Remodeling of vein grafts in the lower limb can lead to stenotic lesions that threaten long-term graft patency. Progressive changes in vein graft geometry were measured at sites of repaired stenoses with three-dimensional (3D) ultrasound imaging. METHODS:Ten vein graft revisions with patch angioplasty were f...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.2003.137
更新日期：2003-04-01 00:00:00
abstract：:Portal and mesenteric venous thrombosis is an uncommon condition that is usually treated with systemic anticoagulation. Catheter-directed thrombolysis via the superior mesenteric artery may be a viable adjunct to treatment of this potentially morbid condition. We present a case of portal and mesenteric venous thrombos...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/s0741-5214(03)01052-8
更新日期：2003-12-01 00:00:00
abstract：OBJECTIVE:This study reviewed outcomes of patients requiring surgical conversion after endovascular abdominal aortic aneurysm (AAA) repair. METHODS:Records for all patients undergoing open conversion after endovascular AAA repair were reviewed. RESULTS:From 1993 to 2006, 574 patients underwent endovascular repair for...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2007.05.030
更新日期：2007-10-01 00:00:00
abstract：:Carotid endarterectomy was performed in 152 patients during a 27-month period. The first 82 patients had primary closure of the arteriotomy, whereas the subsequent 70 patients underwent closure with Dacron patch angioplasty. Duplex scanning was undertaken postoperatively in 102 of these patients with a mean follow-up ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：
更新日期：1987-05-01 00:00:00
abstract：PURPOSE:Cryopreserved human blood vessels are important tools in bypass surgery. However, several in vitro studies have demonstrated diminished postthaw functional activity. Therefore the aim of this study was to investigate the consequences of various freezing/thawing protocols and the role of protein kinase C in the ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/s0741-5214(98)70328-3
更新日期：1998-03-01 00:00:00
abstract：PURPOSE:The purpose of this study was to compare the cardiopulmonary morbidity and mortality rates after endovascular abdominal aortic aneurysm (EAAA) repair with local anesthesia (LA) with intravenous sedation versus general anesthesia (GA). METHODS:Data from patients who underwent elective infrarenal EAAA repair bet...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.2002.128314
更新日期：2002-11-01 00:00:00
