Abstract：
:Although the laser has been demonstrated to vaporize coronary artery plaque, there is little information about its ability to resect or vaporize the range of plaques present in peripheral vessels. This study attempts to determine the ability of the argon laser to resect all grades of atherosclerotic plaque, the risk of perforation during plaque resection, the effects on surrounding arteries, and the effect of different transmission media (air, saline solution, and blood) on the delivery of laser energy to the vessel. Seventy-five adult human cadaveric aortic specimens with a range of atherosclerosis from grossly normal artery to extensive calcification with ulceration were exposed to variable energy densities (200 to greater than 20,000 J/cm2) within 48 hours of harvesting. Specimens were examined grossly for the visual effects of laser and microscopically after preparation with hematoxylin-eosin, trichrome, and/or Verhoeff's elastin stains. Our results indicate that normal arteries and noncalcified plaques absorb laser energy and are vaporized. As the atherosclerosis becomes more complex with calcification, calcified regions are not vaporized and cannot be resected. In normal arteries and noncalcified plaque, perforation times were less than 5 seconds. Where palpable calcification was present in atherosclerotic lesions, average perforation time was doubled. In some vessels areas of calcification prevented wall perforation, but areas of subintimal hemorrhage perforated rapidly because of the selective absorption of laser energy by the red color of hemorrhagic tissue. These results remain the same when saline solution is used as a transmission media, although the amount of energy required to achieve the effects is increased.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Lawrence PF,Dries DJ,Moatamed F,Dixon Jdoi
10.1067/mva.1984.avs0010852subject
Has Abstractpub_date
1984-11-01 00:00:00pages
852-9issue
6eissn
0741-5214issn
1097-6809pii
0741-5214(84)90017-Xjournal_volume
1pub_type
杂志文章abstract：:Recent reports have suggested that cerebral angiography may not be necessary before carotid endarterectomy is performed in selected patients. To determine if arteriography provides additional information that might influence the decision to operate or the conduct of the operation, a retrospective review was performed ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：
更新日期：1989-02-01 00:00:00
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...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/s0741-5214(96)80003-6
更新日期：1996-03-01 00:00:00
abstract：BACKGROUND:Simulation has an increasingly prominent role in modern vascular surgery training. However, it is important to understand how simulation is most effectively delivered to best use the time and resources available. The aim of this narrative review is therefore to critically appraise open technical skill acquis...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,评审
doi：10.1016/j.jvs.2020.09.042
更新日期：2020-11-25 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：: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：OBJECTIVE:Little is known about acute peripheral arterial thrombosis in patients with concomitant cancer. Small studies suggest that revascularization in this patient group is associated with thrombosis and increased risk of amputation and death. We investigated the frequency of cancer in patients operated on for acute...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2015.06.223
更新日期：2015-12-01 00:00:00
abstract：INTRODUCTION:Successful endovascular exclusion of abdominal aortic aneurysms is largely dependent on adequate apposition of the stent graft to the aortic wall. Proximal endoleaks at the time of stent graft placement are uncommon but are more prevalent in patients with challenging neck anatomy. If these initial leaks do...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2010.11.095
更新日期：2011-05-01 00:00:00
abstract：OBJECTIVE:It has been previously shown that the SCD Response Compression System, by sensing the postcompression refill time of the lower limbs, delivers more compression cycles over time, resulting in as much as a 76% increase in the total volume of blood expelled per hour. Extended indications for pneumatic compressio...
journal_title：Journal of vascular surgery
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.jvs.2005.03.031
更新日期：2005-08-01 00:00:00
abstract：:Previous studies have suggested that topically applied platelet-derived wound healing factors (PDWHF) accelerate wound healing by stimulating angiogenesis, fibroblast proliferation, and collagen synthesis. To assess the ability of platelet factors to facilitate healing of chronic cutaneous ulcers we performed a random...
journal_title：Journal of vascular surgery
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1991-10-01 00:00:00
abstract：PURPOSE:This retrospective review describes the surgical management of 51 patients after failed percutaneous renal artery angioplasty (F-PTRA). METHODS:From January 1987 through June 1998, 51 consecutive patients underwent surgical repair of either atherosclerotic (32 patients) or fibromuscular dysplastic (FMD; 19 pat...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/s0741-5214(99)70074-1
更新日期：1999-09-01 00:00:00
abstract：:In a series of six patients, a single-bar anterior external fixator was used to treat combined vascular and orthopedic injuries of the leg. This method of external fixation facilitated operative vascular exposure without sacrificing bony stability or alignment. It may be the preferred method of external fixation for t...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：
更新日期：1987-10-01 00:00:00
abstract：:Revascularization of the lower extremities may require an axillofemoral bypass when an aortobifemoral bypass is contraindicated. Thirty-one patients underwent axillounifemoral and 59 had an axillobifemoral bypass, with a mortality rate of 9%. The indication for operation was limb salvage in 67%, intra-abdominal sepsis...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：
更新日期：1987-06-01 00:00:00
abstract：OBJECTIVE:Contralateral stroke is an infrequent cause of perioperative stroke after carotid endarterectomy (CEA). Whereas the risks of ipsilateral stroke complicating CEA have been discriminated, factors that lead to contralateral stroke are poorly defined. The purpose of this study was to identify the risk of perioper...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2017.04.059
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVE:Endovascular aneurysm repair (EVAR) has reduced early adverse outcomes from abdominal aortic aneurysm (AAA) repair. Preferential use of EVAR may have altered the profile of patients who undergo open repair. The validity of scoring systems such as the Glasgow Aneurysm Score (GAS), devised when open surgery was...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jvs.2011.01.029
更新日期：2011-08-01 00:00:00
abstract：OBJECTIVE:Few studies have examined factors that influence an individual's decision to enter an academic medical career after residency training. We sought to evaluate whether sex, ethnicity, child care issues, and debt burden influenced residents' choice for a career in academic vascular surgery. METHODS:A 39-item We...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2011.11.141
更新日期：2012-05-01 00:00:00
abstract：:Vascular surgery has relied upon the pool of general surgical residents for candidates for residency. This has significantly limited the pool of applicants. With the advent of new primary certificate training paradigms, we investigated factors that might alter the career choices for women medical students. A Web-based...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jvs.2006.12.072
更新日期：2007-04-01 00:00:00
abstract：PURPOSE:Human vascular prostheses develop a pseudointima that after time is devoid of a complete endothelial lining. The composition of this pseudointima consists of both cellular and noncellular components such as coagulation proteins and extracellular matrix proteins. Of these extracellular molecules, type V collagen...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.1993.40730
更新日期：1993-04-01 00:00:00
abstract：PURPOSE:In the presence of carotid occlusion, the external carotid artery (ECA) becomes an important source of cerebral blood flow, especially if the circle of Willis is incomplete. The contribution of the ECA to hemispheric blood flow in patients with severe ipsilateral carotid stenosis has never been previously inves...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.2000.104598
更新日期：2000-05-01 00:00:00
abstract：OBJECTIVE:The primary purpose of the current study was to evaluate the safety and effectiveness of selective coverage of the left subclavian artery (LSCA) without revascularization during thoracic endovascular aortic repair (TEVAR) in patients with bilateral patent vertebrobasilar junctions. The secondary purpose was t...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2012.10.110
更新日期：2013-05-01 00:00:00
abstract：BACKGROUND:This randomized clinical trial compared endovenous laser ablation (EVLA) and surgical ligation with attempted stripping in the treatment of small saphenous vein (SSV) insufficiency. The early results demonstrated that EVLA was more likely to eradicate axial reflux and was also associated with a faster recove...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jvs.2014.09.037
更新日期：2015-03-01 00:00:00
abstract：OBJECTIVE:This randomized prospective study was designed to compare the effectiveness of treating superficial femoral artery occlusive disease percutaneously with expanded polytetrafluoroethylene (ePTFE)/nitinol self-expanding stent grafts vs surgical femoral-to-above knee (AK) popliteal artery bypass with synthetic gr...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jvs.2006.08.074
更新日期：2007-01-01 00:00:00
abstract：OBJECTIVES:Comprehensive long-term outcome data after endovascular aneurysm repair (EVAR) are scarce, although anecdotes of endograft failure in the early 1990s abound. The objective of this report is to provide comprehensive outcomes after EVAR performed with the earliest available endograft components. These were a h...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2010.02.257
更新日期：2010-07-01 00:00:00
abstract：OBJECTIVE:Prior studies have suggested improved wound complication rates but decreased primary patency in lower extremity bypasses performed with endoscopic vein harvest (EVH) vs open vein harvest (OVH). We hypothesize that the inferior patency reflects the initial learning curve for EVH and that improved patency can b...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2019.02.043
更新日期：2019-11-01 00:00:00
abstract：BACKGROUND:Renovascular hypertension (RVH) associated with renal artery and abdominal aortic narrowings is the third most common cause of pediatric hypertension. Untreated children may experience major cardiopulmonary complications, stroke, renal failure, and death. The impetus of this study was to describe the increas...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2020.02.045
更新日期：2020-12-01 00:00:00
abstract：OBJECTIVE:Our aim was to identify the incidence of and predictors for common carotid artery (CCA) stent fractures (SFs) and to examine the effect of SFs on the development of in-stent restenosis (ISR). METHODS:Seventy patients (37 women; median age, 60.9 years) who were stented for significant (≥60%) proximal CCA sten...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2019.04.492
更新日期：2020-03-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to document the health-related quality of life (HRQOL) for patients who survived operative repair of a ruptured abdominal aortic aneurysm (RAAA) and to compare this with a matched group of patients who survived elective operative repair of an abdominal aortic aneurysm (EAAA). ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jvs.2007.04.033
更新日期：2007-08-01 00:00:00
abstract：:In this article we describe a method for assembling an endovascular graft within the aorta with a graft and then a stent introduced sequentially over a guidewire as separate components. In the ex vivo study, an endovascular graft that was 25 mm in diameter was introduced through a 9F introducer. In the in vivo study, ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1067/mva.2001.115814
更新日期：2001-08-01 00:00:00
abstract：:Prostacyclin (PGI2) and thromboxane A2 (TxA2) formation by whole-tissue segments of nine carotid endarterectomy specimens (CES), five normal aortic specimens (NAS), six saphenous vein specimens (SVS), and four platelet samples were determined by incubation with 10 mumol/L 1-14C-radiolabeled prostaglandin endoperoxide ...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：
更新日期：1988-10-01 00:00:00
abstract：:Aortoduodenal fistula is a well-known complication of abdominal aortic aneurysm repair and has been described after endovascular repair. A unique complication of duodenal perforation by intentionally placed embolic material in the aneurysm sac is described. Intentional off-label use of material to promote aneurysm sac...
journal_title：Journal of vascular surgery
pub_type： 杂志文章
doi：10.1016/j.jvs.2012.05.069
更新日期：2012-11-01 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
