Abstract:
OBJECTIVE:Volume-outcome relationships for open abdominal aortic aneurysm (AAA) repair have received less attention in publicly funded health systems. Furthermore, the roles of surgeon seniority (years of experience) and composite volume (encompassing all major arterial cases) on outcomes after open AAA repair are less well known. We sought to determine the effects of surgeon volume, surgeon years of experience, and composite volume on outcomes after elective open AAA repairs performed in Ontario, Canada. METHODS:Using a population-based, prospectively collected health administrative database, all elective open AAA repairs occurring in the province of Ontario from 2005 to 2014 were identified. Surgeon annual volume was classified by quintiles, with the highest volume quintile acting as the reference category. Multivariable logistic regression modeling was used, adjusting for patient factors (age, sex, comorbidities, year of procedure, income) to investigate the relationship between surgeon annual volume and 30-day mortality, 30-day major complications, 30-day reoperations, 1-year mortality, and 1-year reoperations (related to index procedure). The potential effects of annual surgeon composite volume and surgeon years of experience on postoperative outcomes were also explored. RESULTS:A total of 7211 elective open AAA repairs performed by 101 surgeons were identified between 2005 and 2014. Most of the operations were performed by vascular surgeons (81.5%), followed by cardiac (12.1%) and general surgeons (6.1%). Median number of procedures in the lowest quintile group was 3 repairs/y, whereas the highest quintile group performed 54 repairs/y. Overall 30-day mortality was 3%. No difference in mortality was detected in comparing the lowest with the highest volume groups (1.89% vs 3.01%; adjusted odds ratio [OR], 0.60; 95% confidence interval [CI], 0.27-1.33). The lowest volume group exhibited a higher 30-day complication rate (28.0% vs 20.4%; OR, 1.54; 95% CI, 1.15-2.06) and 30-day reoperation rate (10.53% vs 6.73%; OR, 1.64; 95% CI, 1.13-2.38) compared with the highest volume group. No effect of surgeon volume on 1-year mortality or 1-year reoperation was observed. Similarly, composite volume and surgeon years of experience were not associated with postoperative outcomes. CONCLUSIONS:In a single-payer system with a relatively high number of open AAA repairs/surgeon per year, surgeon annual volume had no effect on postoperative mortality but was associated with lower postoperative complication and reoperation rates.
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Dubois L,Allen B,Bray-Jenkyn K,Power AH,DeRose G,Forbes TL,Duncan A,Shariff SZdoi
10.1016/j.jvs.2017.10.050subject
Has Abstractpub_date
2018-06-01 00:00:00pages
1717-1726.e5issue
6eissn
0741-5214issn
1097-6809pii
S0741-5214(17)32389-3journal_volume
67pub_type
杂志文章abstract:BACKGROUND:Abdominal aortic aneurysm (AAA) rupture occurs when wall stress exceeds wall strength. Engineering principles suggest that aneurysm diameter is only one aspect of its geometry that influences wall stress. Finite element analysis considers the complete geometry and determines wall stresses throughout the stru...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.09.002
更新日期:2008-01-01 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:OBJECTIVE:The aim of this study is to determine whether adenoviral inducible nitric oxide synthase (iNOS) gene transfer could inhibit intimal hyperplasia (IH) in porcine internal jugular veins interposed into the carotid artery circulation. METHODS:Porcine internal jugular veins were transduced passively with 1 x 10(1...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2001.113983
更新日期:2001-07-01 00:00:00
abstract:OBJECTIVE:Thrombolysis as a treatment for acute limb ischemia (ALI) has become a first-line therapy based on studies published over 2 decades ago. The purpose of this study was to assess outcomes of patients treated for ALI using contemporary thrombolytic agents and endovascular techniques. METHODS:Consecutive patient...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.10.054
更新日期:2014-04-01 00:00:00
abstract::Extracorporeal shock wave lithotripsy (ESWL) represents the preferred treatment for most upper ureteric and renal calculi. Complication rates associated with ESWL are low, justifying the enthusiasm and acceptance of this treatment modality. As the technique has become more widely available, some deleterious effects on...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2000.104592
更新日期:2000-05-01 00:00:00
abstract:PURPOSE:A recent overview indicated that although routine patching is safer than routine primary closure after carotid endarterectomy (CEA), there is no systematic evidence that patch type influences outcome. However, most surgeons still believe that prosthetic patches are probably more thrombogenic than vein patches. ...
journal_title:Journal of vascular surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1067/mva.2001.115005
更新日期:2001-05-01 00:00:00
abstract::Surgery under controlled ischemia has been extensively practiced by cardiac, plastic, orthopedic, vascular, and general surgeons. During the past 20 years, we have routinely used this technique to operate on a clean, bloodless field in complex cases of congenital vascular malformations. Based on our favorable experien...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2001.118806
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVE:Inflammatory modulators are important in the pathogenesis of aneurysmal disease. Gene expression profiling of experimental abdominal aortic aneurysm (AAA) tissue demonstrated upregulation of the FK506BP12 (rapamycin binding protein) gene product. Rapamycin is a potent immunosuppressor that prevents recurrent ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2004.05.020
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVE:We examined the protective effects of the new selective spinal cord cooling by using cold saline infusion into the cross-clamped aorta and a transvertebral cooling pad placed over the lumbar vertebral column from paraplegia caused by ischemic spinal cord injury on thoracoabdominal aortic surgery. METHODS:Eig...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2006.02.017
更新日期:2006-06-01 00:00:00
abstract:OBJECTIVE:The Stenting with Angioplasty and Protection in Patients at High Risk for Endarterectomy (SAPPHIRE) trial compared carotid endarterectomy (CEA) to carotid artery stenting (CAS) among high-risk patients using a model of risk that has not been validated by previous publications. The objective of our study was t...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2015.04.398
更新日期:2015-10-01 00:00:00
abstract::Endovascular techniques with coil embolization have been used in certain visceral aneurysm cases, often resulting in sacrifice of the involved visceral vessel and end-organ thrombosis. We describe two cases in which stent grafts were used to treat these aneurysms, allowing preservation of visceral artery and end-organ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2002.129645
更新日期:2002-12-01 00:00:00
abstract:BACKGROUND:Compared with angiogenesis, arteriogenesis is a distinct process based on the remodeling and maturation of pre-existing arterioles into large conductance arteries. Therapeutic angiogenesis has been proposed as a potential treatment for ischemic atherosclerotic diseases. Since a variety of angiogenic factors ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2008.11.004
更新日期:2009-04-01 00:00:00
abstract::Vascular smooth muscle cells exhibit varied responses after vessel injury and surgical interventions, including phenotypic switching, migration, proliferation, protein synthesis, and apoptosis. Although the source of the smooth muscle cells that accumulate in the vascular wall is controversial, possibly reflecting mig...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2007.02.061
更新日期:2007-06-01 00:00:00
abstract::A 52-year-old man had an extensive right adrenal pheochromocytoma with invasion of the pararenal inferior vena cava (IVC). Tumor resection required en bloc resection of the infrahepatic IVC. The right kidney was not involved with tumor. Reconstruction of the IVC was performed with an externally supported, expanded pol...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(94)70132-6
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:Critical limb ischemia (CLI) is growing in global prevalence and is associated with high rates of limb loss and mortality. However, a relevant gap of evidence about the most optimal treatment strategy still exists. The aim of this study of the prospective, multicenter First-Line Treatments in Patients With Cr...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jvs.2015.04.441
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Spinal cord ischemia is a rare complication after open surgical repair for ruptured abdominal aortic aneurysms (rAAA). The use of emergency endovascular aortic aneurysm repair (eEVAR) is increasing, and paraplegia has been observed in a few patients. The objective of this study was to assess the incidence an...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jvs.2005.06.023
更新日期:2005-10-01 00:00:00
abstract:INTRODUCTION:Ruptured descending thoracic aortic aneurysm (rDTAA) is associated with high mortality rates. Data supporting endovascular thoracic aortic aneurysm repair (TEVAR) to reduce mortality compared with open repair are limited to small series. We investigated published reports for contemporary outcomes of open a...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.jvs.2009.10.103
更新日期:2010-04-01 00:00:00
abstract::Among various methods to achieve rapid occlusion of the aorta during endovascular repair for ruptured abdominal aortic aneurysm, particular emphasis is placed on two techniques that have been incorporated into our endovascular repair practice. The sheath-over-balloon technique (the Loan SOB technique) facilitates hemo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2006.03.033
更新日期:2006-07-01 00:00:00
abstract:PURPOSE:Treatment of aortoiliac prosthetic graft infections includes the removal of the infected material and repeat revascularization if necessary. The risk of infection of the graft material used for the repeat revascularization has been the drawback of its use in situ except with autografts. Good results were obtain...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(96)80013-9
更新日期:1996-03-01 00:00:00
abstract::Carotid endarterectomy has been advocated to prevent further neurologic deterioration in patients who have had a stroke. Previous reports have shown that endarterectomy within 2 weeks of a stroke is associated with high morbidity and mortality rates presumably from hemorrhagic complications in the brain. Some recommen...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1985-03-01 00:00:00
abstract:OBJECTIVE:Previous publications have clearly established a correlation between timing of thoracic endovascular aortic repair (TEVAR) and complications after treatment of complicated acute type B aortic dissection (ATBAD). However, the temporal association of TEVAR with morbidity after uncomplicated presentations is poo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2020.05.073
更新日期:2020-07-03 00:00:00
abstract::Sciatic artery aneurysms (SAAs) develop in a persistent sciatic artery, which is a congenital anomalous continuation of the internal iliac artery and may be the major blood supply to the lower extremity. SAAs may appear clinically with rupture, thrombosis, distal embolization, or compression of the sciatic nerve. We h...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1986-10-01 00:00:00
abstract::Type B dissections complicated by pain, malperfusion, or aneurysm expansion mandate surgical intervention. Success of this therapy is predicated on exclusion and thrombosis of the false lumen of the aneurysm. We report a case where cessation of flow was achieved using covered stent grafts in conjunction with coil embo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2008.03.012
更新日期:2008-08-01 00:00:00
abstract:OBJECTIVE:To determine the clinical and radiological outcomes of patients with symptomatic spontaneous isolated dissection of the superior mesenteric artery (SIDSMA) who were treated with conservative management. METHODS:This retrospective study included 27 consecutive patients who were diagnosed with symptomatic SIDS...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.07.112
更新日期:2014-02-01 00:00:00
abstract:PURPOSE:Asymptomatic morphologic popliteal vein entrapment is frequently found in the healthy population (27%). In our institution, popliteal vein compression on plantar flexion was observed in 42% of all ascending venograms. Some authorities consider the lesion benign, without pathologic significance. This study exami...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2000.103786
更新日期:2000-04-01 00:00:00
abstract::Chronic postthrombotic occlusion of the iliofemoral venous segments produces severe morbidity, which can be alleviated if venous drainage is restored. The common femoral vein (CFV) cannot always be fully recanalized with percutaneous endovenous techniques alone. We report the technique combining operative endovenectom...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2010.02.260
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:Endovascular stent-graft placement is replacing traditional surgery in type B aortic dissection. Usually stent-graft implantation is performed under fluoroscopic and angiographic guidance, but this relatively new procedure is still burdened with some complications. We investigated the value of a developed alg...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2004.08.041
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVE:Hybrid repair of thoracoabdominal aortic aneurysms (TAAA) may reduce morbidity and mortality in high-risk candidates for open repair. This study reviews the outcomes of hybrid TAAA repair for Crawford extent I-III TAAA in high-risk patients in comparison to patients who underwent concurrent open TAAA repair. ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2008.12.051
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the impact of pre-existing radial artery macrocalcification (Mönckeberg type of arteriosclerosis) on patency rates of radiocephalic fistulas (RCFs) in diabetic end-stage renal disease (ESRD) patients undergoing hemodialysis. METHODS:In this observational prospective stud...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2014.02.042
更新日期:2014-08-01 00:00:00
abstract::During the last decade, new information and reports have been published regularly describing endovascular and open repair of ruptured abdominal aortic aneurysms, but despite this, disagreement persists over which therapy is best. At the root of the problem is the discrepancy between the findings of multiple well-perfo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2014.11.042
更新日期:2015-02-01 00:00:00