Abstract:
OBJECTIVE:Duplex ultrasound (DUS) imaging for vein bypass graft (VBG) surveillance is confounded by technical and physiologic factors that reduce the sensitivity for detecting impending graft failure. In contrast, three-dimensional computed tomography angiography (CTA) offers high-fidelity anatomic characterization of VBGs, but its utility in detecting at risk grafts is unknown. The current study analyzed the correlation between DUS and CTA for detection of vein graft stenosis and evaluated the relationship of the observed abnormalities to VBG failure. METHODS:Consecutive lower extremity VBG patients underwent surveillance with concurrent DUS imaging and CTA at 1 week and at 1, 6, and 12 months postoperatively. A standardized algorithm was used for CT reconstruction and extraction of the lumen geometries at 1-mm intervals. At each interval, CT-derived cross-sectional areas were coregistered and correlated to DUS peak systolic velocities (PSVs) within six predesignated anatomic zones and then analyzed for outcome association. Vein graft failure was defined as pathologic change within a given anatomic zone resulting in thrombosis, amputation, or reintervention within the 6-month period after the observed time point. RESULTS:The study recruited 54 patients, and 10 (18%) experienced failure ≤18 months of implantation. The expected inverse relationship between cross-sectional area and PSV was only weakly correlated (Spearman rank coefficient = -0.19). Moderate elevations in the PSV ratio (PSVr; 2-3.5) were frequently transient, with 14 of 18 grafts (78%) demonstrating ratio reduction on subsequent imaging. A PSVr ≥3.5 was associated with a 67% failure rate. CT stenosis <50% was highly correlated with success (0 failures); however, high-grade (>80%) CT stenosis was more likely to succeed than to fail (25%). Significant discordance between CT and DUS was found in 18 patients. Although 14 of these patients had CT stenosis >70% with a PSVr <3.5, subsequent failure occurred in only two. Conversely, graft failure occurred in three of four patients with CT stenosis <70% but PSVr >3.5. Focused analysis of these patients using computational fluid dynamic modeling demonstrated that vein side branches, local tortuosity, regional diameter variations, and venovenostomies were the drivers of these discrepancies. CONCLUSIONS:This analysis demonstrated that a PSVr ≥3.5 is strongly correlated with VBG failure, whereas the natural history of moderately elevated PSVr (2-3.5) is largely clinically benign. Although minimum stenosis on the CT scan was highly predictive of success, high-grade CT stenosis was infrequently associated with failure. The interaction of anatomic features with the local flow dynamics was identified as the primary confounder for a direct correlation between CT and DUS imaging.
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Rehfuss J,Scali S,He Y,Schmit B,Desart K,Nelson P,Berceli Sdoi
10.1016/j.jvs.2015.06.220subject
Has Abstractpub_date
2015-12-01 00:00:00pages
1546-54.e1issue
6eissn
0741-5214issn
1097-6809pii
S0741-5214(15)01487-1journal_volume
62pub_type
杂志文章abstract:OBJECTIVE:The objective of this study was to evaluate early and late results of the Anaconda aortic endograft (Vascutek, Terumo, Inchinnan, Scotland) in a single-center experience. METHODS:From September 2005 to March 2012, patients underwent endovascular aortic repair for abdominal aortic aneurysm (AAA) with Anaconda...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2014.04.073
更新日期:2014-11-01 00:00:00
abstract:INTRODUCTION:In some community-based studies, lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) has been shown to be independently predictive of future fatal and nonfatal cardiovascular disease (CVD) events. We tested the hypothesis that Lp-PLA(2) is independently predictive of mortality in high-risk patients from ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.04.038
更新日期:2007-09-01 00:00:00
abstract::We describe a rare case of a celiomesenteric anomaly with concurrent aneurysm. The patient, a 53-year-old man, had no abdominal pain or discomfort. The presence of a celiac artery aneurysm was suspected on the basis of the results of abdominal computerized tomographic scanning and echo ultrasound scanning performed be...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(99)70318-6
更新日期:1999-04-01 00:00:00
abstract::In a 34-year-old woman with intermittent calf claudication, cystic adventitial disease of the popliteal artery was demonstrated by intravascular ultrasound imaging. Multiple intramural cystic masses were seen to be compressing the arterial lumen. The diagnoses of cystic adventitial disease was confirmed by surgery. In...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/s0741-5214(96)80023-1
更新日期:1996-03-01 00:00:00
abstract::The failure of dialysis access grafts leads to significant morbidity rates in patients with end-stage renal disease. We describe a novel technique for the insertion of new polytetrafluoroethylene graft segments designed to reduce this morbidity rate. Patients found to have significant intragraft deterioration at throm...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1067/mva.2002.122890
更新日期:2002-05-01 00:00:00
abstract:PURPOSE:The purpose of this study was to compare the midline retroperitoneal approach with the midline transperitoneal approach for abdominal aortic aneurysm (AAA) repair with respect to operative details, gastrointestinal complications, and wound complications. METHODS:From January 1990 through January 1998, 128 pati...
journal_title:Journal of vascular surgery
pub_type: 临床试验,杂志文章
doi:10.1067/mva.2000.106946
更新日期:2000-08-01 00:00:00
abstract::The mortality rate for elective abdominal aortic operations remains between 3% and 8% despite careful hemodynamic monitoring, and half of these deaths are cardiac in origin. An extensive evaluation of ventricular function was performed during abdominal aortic operation to detect subtle abnormalities in systolic or dia...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1986-05-01 00:00:00
abstract::With the use of a multifinger photoplethysmography system, finger systolic blood pressures were measured before and after cooling in patients with Raynaud's disease. In 30 patients with arteriographically documented arterial obstructions, significantly low digital pressures were found in 91% of fingers with cold sensi...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1986.avs0030456
更新日期:1986-03-01 00:00:00
abstract:OBJECTIVE:This study determined the incidence, the surgical details, and the outcome of late open conversion after failed endovascular aneurysm repair (EVAR) for abdominal aortic aneurysm. METHODS:A review of English-language medical literature from 1991 to 2014 was conducted using the PubMed and EMBASE databases to f...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2015.02.019
更新日期:2015-05-01 00:00:00
abstract:OBJECTIVE:Aneurysm rupture is a major cause of morbidity and mortality, and evidence suggests shared risk for both abdominal aortic aneurysms (AAAs) and intracranial aneurysms (IAs). We hypothesized that screening for AAA in patients with known IA is cost-effective. METHODS:We used a decision tree model to compare cos...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2016.05.065
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess the ability of the Pruitt-Inahara shunt to maintain adequate middle cerebral artery velocities during carotid endarterectomy. STUDY DESIGN:Prospectively collected data recorded during 548 carotid endarterectomies performed at a single university hospital were analyzed ...
journal_title:Journal of vascular surgery
pub_type: 临床试验,杂志文章
doi:10.1067/mva.2000.107565
更新日期:2000-08-01 00:00:00
abstract:BACKGROUND:We explored the role of angiotensin II in determining the histomorphometric features of plaque stability in apolipoprotein E-deficient mice submitted to ligation of the carotid artery. METHODS:Six-month-old apolipoprotein E-deficient mice underwent ligation of the common left carotid artery and were immedia...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2006.04.033
更新日期:2006-08-01 00:00:00
abstract:INTRODUCTION:Leg ulcers associated with chronic venous insufficiency (CVI) frequently recur after healing. The risk of recurrence has not been well defined for patients in different anatomic and hemodynamic groups. We reviewed the risk of ulcer recurrence on the basis of clinical, etiologic, anatomic, and pathophysiolo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2002.121128
更新日期:2002-04-01 00:00:00
abstract:BACKGROUND:Pulmonary embolism (PE) is a life-threatening condition that is associated with the long-term sequelae of chronic pulmonary hypertension. Prior experimental work has suggested that post-PE inflammation is accompanied by pulmonary artery intimal hyperplasia. This study evaluated the effect of the thrombus and...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2005.12.010
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVE:Locoregional anesthesia is an effective method for evaluating cerebral function during carotid endarterectomy (CEA). Landmark-guided regional anesthesia (RA) is currently used for CEA and can provoke substantial perioperative hypertension. Ultrasound-guided RA (US-RA) is a new method for performing RA in CEA;...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jvs.2015.02.036
更新日期:2015-07-01 00:00:00
abstract::A 53-year-old woman with Loeys-Dietz syndrome developed progressive subclavian artery aneurysm and common carotid artery dissection. She was treated successfully by plugging and coiling of the subclavian aneurysm and its side branches after combined cervical debranching using standard carotid-axillary bypass and Gore ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.09.031
更新日期:2015-03-01 00:00:00
abstract::Pseudoaneurysms represent a well-recognized vascular complication of renal transplantation, but true aneurysms involving the donor renal artery have not been described. We report a patient who had a de novo aneurysm of the donor renal artery 6 years after receiving a cadaveric renal transplant from a child. The aneury...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2000.106943
更新日期:2000-08-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of endovascular stent grafting for surgical management of aortic pseudoaneurysm in patients with Behcet's disease (BD). METHODS:We present a single-institution retrospective cohort of patients with aortic pseudoaneurysm and BD treated with aortic stent grafting. Computed tomogra...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.09.052
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVE:Compression of the left common iliac vein (LCIV) by the right common iliac artery is an anatomic variant that may increase the risk for LCIV thrombosis. The incidence of LCIV compression in patients with abdominal aortic aneurysms (AAA) is unknown, however. The aim of this descriptive anatomic study was to de...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2006.05.046
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVE:Preprocedural computed tomography angiography (CTA) assists in evaluating vascular morphology and disease distribution and in treatment planning for patients with lower extremity peripheral artery disease (PAD). The aim of the study was to determine the predictive value of radiographic findings on CTA and tec...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2017.02.031
更新日期:2017-09-01 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::Nutcracker syndrome is an entity resulting from left renal vein compression by the superior mesenteric artery and the aorta, leading to symptoms of left flank pain and hematuria. Conventional treatment has been surgical, commonly through transposition of the left renal vein to a more caudal location on the inferior ve...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2010.10.112
更新日期:2011-04-01 00:00:00
abstract:PURPOSE:This report describes our experience with endovascular stented graft repair of abdominal aortic aneurysms and other arterial lesions. METHODS:Between September 1990 and April 1994, 57 patients were treated with endovascular stented grafts (50 with abdominal aortic aneurysms or iliac aneurysms; five with trauma...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(95)70186-9
更新日期:1995-04-01 00:00:00
abstract::We report the fifth case of a graft appendiceal fistula. The four previously reported cases are reviewed. This is the first report of the utility of the tagged red blood cell study in the evaluation of a patient with a graft appendiceal fistula. ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1067/mva.1988.avs0070814
更新日期:1988-06-01 00:00:00
abstract:BACKGROUND:Outcomes of revascularization for critical limb ischemia (CLI) have historically been patency, limb salvage, and survival. Functional status and quality of life have not been well described. This study used functional and quality of life assessments to measure patient-centered outcomes after revascularizatio...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2014.01.067
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the roles of the kallikrein-kinin system and matrix metalloproteinases (MMPs) in the development of arterial restenosis attributable to intimal hyperplasia in the femoropopliteal arteries. METHODS:This report describes a single-center prospective study of 27 patie...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2016.06.106
更新日期:2017-01-01 00:00:00
abstract::Aggressive revascularization of the ischemic lower extremity in atherosclerotic occlusive disease by femoropopliteal (FP) and femorotibial (FT) bypass or profundaplasty (P), as indicated, has been advocated by some authors for all patients. Others have recommended primary amputation, particularly for tibial occlusive ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1985.avs0020174
更新日期:1985-01-01 00:00:00
abstract::A case is reported of a woman with an ischemic arm as a result of damage to the subclavian artery by the clavicular anomaly associated with cleidocranial dysostasis. Only one similar case has been reported previously. ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(97)70105-8
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVES:P-selectin inhibition has been found to limit venous thrombosis. We hypothesize that elevated levels of P-selectin will amplify thrombosis, mediated by procoagulant microparticles (MPs). METHODS:Male mice (Mus musculus, n659), 20 to 25 grams, underwent IVC ligation to induce thrombosis. Groups consisted of ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(03)01033-4
更新日期:2003-11-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to identify whether revascularization by percutaneous transluminal angioplasty (PTA) for patients with intermittent claudication improved measures of functional performance including balance. METHODS:A prospective observational study was performed at a single tertiary vascular cente...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.05.106
更新日期:2013-12-01 00:00:00