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 H2 (PGH2), and in other experiments with and without 10 mumol/L of CGS 13080, a TxA2 synthase inhibitor. PGI2 formation (expressed as picomoles 6-keto-PGF1 alpha/2-min incubation per sample) by nonatheromatous proximal intima of CES (307 +/- 23, mean +/- standard error) and distal intima of CES (260 +/- 22) was not statistically different; however, it was greater than atheromatous transitional plaque (159 +/- 13 pmol) (p less than 0.01) and ulceration regions (140 +/- 15 pmol) (p less than 0.01) of CES, NAS (204 +/- 16 pmol) (p less than 0.01), and SVS (165 +/- 9 pmol) (p less than 0.01). TxA2 formation (expressed as picomoles TxB2/2-min incubation per sample) by CES ulceration (51 +/- 2 pmol) was low but greater than proximal (17 +/- 2 pmol) (p less than 0.01), distal (19 +/- 3 pmol) (p less than 0.01), and transitional (23 +/- 3 pmol) (p less than 0.01) regions. TxA2 formation by NAS and SVS was not detected (less than 10 pmol). CGS 13080 inhibited TxA2 formation by CES below the limits of detection. Incubation of 1.9 x 10(5) intact platelets with 10 mumol/L of PGH2 formed a quantity of TxA2 equal to that of CES ulceration.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Akers DL,Kerstein MD,Rush DS,Bellan JA,Haynes DF,Kadowitz PJ,McNamara DBsubject
Has Abstractpub_date
1988-10-01 00:00:00pages
520-6issue
4eissn
0741-5214issn
1097-6809pii
0741-5214(88)90120-6journal_volume
8pub_type
杂志文章abstract::A 38-year-old woman, with no comorbidities, presented to an outside institution with a 10-cm aortic arch and descending thoracic aortic aneurysm. After an aborted attempt at hybrid repair, she underwent successful, staged repair with zone 1 thoracic endovascular aortic repair and open aneurysmal sac revision. The pati...
journal_title:Journal of vascular surgery
pub_type:
doi:10.1016/j.jvs.2018.09.038
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVE:This study investigated the prevalence and distribution of deep vein thrombosis (DVT) in patients with symptomatic pulmonary embolism (PE) to establish a screening protocol to reduce unnecessary venous duplex scanning using different D-dimer level rather than single cutoff point of 0.5 microg/mL in patients w...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.05.026
更新日期:2007-09-01 00:00:00
abstract::Angiopeptin, a novel synthetic octapeptide, was evaluated as a new approach toward the inhibition of neointimal hyperplasia in vein grafts. Male New Zealand white rabbits (n = 22) underwent carotid artery interposition bypass grafting with autologous reversed jugular vein. Nine rabbits were in the treatment group, and...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1991-04-01 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::Antithrombin (AT III), a major circulating anticoagulant, may be influenced by ischemia-induced changes in microvascular integrity and contribute to localized hypercoagulability. In a nonheparinized intact canine hindlimb model we determined AT III activity by chromogenic substrate assay (S-2238); coagulation changes ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1989.vs0090740
更新日期:1989-05-01 00:00:00
abstract:OBJECTIVE:Guidelines from the Society for Vascular Surgery and the Choosing Wisely campaign recommend that peripheral vascular interventions (PVIs) be limited to claudication patients with lifestyle-limiting symptoms only after a failed trial of medical and exercise therapy. We sought to explore practice patterns and p...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2019.05.005
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:We tested the hypothesis that the course of primary chronic venous insufficiency can be changed by correction of the incompetent valve in the superficial femoral vein. METHODS:This was a prospective, randomized, controlled study. A total of 125 extremities with reflux in greater saphenous and superficial femor...
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.2001.110511
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to compare blood flow rates measured by Doppler ultrasound (DUS) and phase-contrast magnetic resonance imaging (MRI) in patients having a hemodialysis arteriovenous fistula (AVF) and to identify scenarios in which there was significant discordance between these two approaches. ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2018.02.043
更新日期:2018-12-01 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:Median arcuate ligament syndrome (MALS) is an often overlooked, surgically correctable condition that mimics functional chronic abdominal pain. Patient-reported surgical outcomes are unpredictable in MALS. The objective of this study was to define the psychiatric comorbidities in a cohort of adults undergoing...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2017.12.078
更新日期:2018-11-01 00:00:00
abstract::We report a case of primary aortoappendiceal fistula in a patient with chronic, relapsing abdominal symptoms and acute lower gastrointestinal hemorrhage. The diagnosis was evident with abdominal computed tomographic scan results. The patient's condition was successfully managed with appendectomy, abdominal aortic aneu...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1067/mva.2002.121751
更新日期:2002-06-01 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::Ninety-two patients underwent surgical treatment for 59 prosthetic graft infections and 33 secondary aortoenteric fistulas. Definitive treatment was accomplished with a low perioperative mortality rate (14%). Long-term follow-up confirmed that most patients were cured of their infection or fistula, and 88% of the pati...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract::The ability to diagnose and localize vascular graft infections has been a major challenge. Recent studies in animal models and humans with focal bacterial infection have shown that radiolabeled, polyclonal, human immunoglobulin G accumulates at the site of inflammation and can serve as the basis for an imaging techniq...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:Totally percutaneous aortic aneurysm repair has been shown to be technically feasible, with low morbidity. Complications from percutaneous arterial closure are not insignificant, however, and can be fatal. We sought to evaluate our experience with this technique, compare it with the published literature, and ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2005.11.004
更新日期:2006-02-01 00:00:00
abstract:PURPOSE:Flush saphenofemoral ligation, with multiple cosmetic stab phlebectomy, successfully treats saphenofemoral reflux and superficial varicosities. The long-term effect on the residual greater saphenous vein (GSV) requires evaluation. METHODS:Noninvasive triplex ultrasound assessment of the residual GSV for potent...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(95)70044-7
更新日期:1995-11-01 00:00:00
abstract:OBJECTIVE:The optimal revascularization strategy in diabetic patients with chronic critical limb ischemia (CLI) is unclear. This study assessed the efficacy of tailored endovascular-first vs surgical-first revascularization stratified for the presence of diabetes. METHODS:This prospective cohort study, with 1-year fol...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2006.12.022
更新日期:2007-04-01 00:00:00
abstract::From 1957 to 1985, 116 consecutive operations for recurrent carotid stenosis were performed in 99 patients at the University of California, San Francisco. Ninety-four patients underwent 103 reoperations for primary recurrent stenosis (nine patients had bilateral repairs). Seventy-two operations (70%) were performed to...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1987-03-01 00:00:00
abstract:BACKGROUND:Percutaneous transluminal angioplasty (PTA) and primary stenting are commonly used endovascular therapeutic procedures for the treatment of infrapopliteal arterial occlusive disease. However, which procedure is more beneficial for patients with infrapopliteal arterial occlusive disease is unknown. METHODS A...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.jvs.2014.03.012
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Systemic inflammation has been implicated in the development of cognitive dysfunction following carotid endarterectomy (CEA). Neutrophil-lymphocyte ratio (NLR) is a reliable measure of systemic inflammation. We hypothesize that patients with elevated preoperative NLR have increased risk of cognitive dysfunct...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.08.095
更新日期:2014-03-01 00:00:00
abstract:PURPOSE:The purpose of this study was to develop an angioscopic technique to visualize the endoluminal surface of the aorta and to guide vascular stent placement. METHODS:A fiberoptic angioscope, fitted with a balloon at its tip, was passed via a carotid arteriotomy into the abdominal aorta of seven anesthetized pigs....
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(05)80013-8
更新日期:1995-05-01 00:00:00
abstract:OBJECTIVE:Aortic geometry has been shown to influence the development of endograft malapposition (bird-beaking) in thoracic endovascular aortic repair (TEVAR), but the extent of this relationship lacks clarity. The aim of this study was to develop a reproducible method of measuring bird-beak severity and to investigate...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2019.11.045
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVE:The goal of this study was to present open surgical conversion with graft salvage or "semiconversion" as a definitive and safe treatment for untreatable and persistent type II endoleaks causing sac enlargement after endovascular aneurysm repair. METHODS:Between January 2001 and December 2014, 25 of 1623 endo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2015.07.075
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:Many studies have been published regarding the influence of smoking on the incidence and prevalence of peripheral arterial disease (PAD). A systematic review was performed to establish the magnitude of the effect of smoking on the development of PAD, and a possible dose-response relationship. METHODS:English...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2004.08.049
更新日期:2004-12-01 00:00:00
abstract:PURPOSE:Elevations of plasmin have been implicated in the pathogenesis of abdominal aortic aneurysms (AAA) because of its ability to digest extracellular matrix proteins. Plasminogen activators regulate the conversion of plasminogen to plasmin. Tissue-type plasminogen activator (tPA) is more important in modulation of ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(97)70333-1
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:Renal artery aneurysms (RAAs) are uncommon, and rates of growth and rupture are unknown. Limited evidence therefore exists to guide clinical management of RAAs, particularly small aneurysms that are asymptomatic. To further characterize the natural history of RAAs, we studied anatomic characteristics and chan...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2014.03.006
更新日期:2014-08-01 00:00:00
abstract::In a subset of patients requiring lower extremity revascularization, the popliteal artery may be used for inflow, thereby minimizing dissection and the length of vein required for bypass. This retrospective study was done to define the risks and benefits of arterial reconstruction in a population of patients having po...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1992.36607
更新日期:1992-05-01 00:00:00
abstract:OBJECTIVE:Medically complex patients who need abdominal aortic aneurysm (AAA) repair are at increased risk of mortality. We study the effects of interhospital transfer to high-volume hospitals (HVHs) on postoperative complications and mortality after complications in these patients. METHODS:Data for 491,779 patients u...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2015.10.068
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVE:This study was conducted to determine the differences in the diameter of the thoracic aorta when measured from electrocardiographic (ECG)-gated and nongated computed tomography (CT) angiography. Another aim was to define the difference in the aortic diameter when it is measured at peak systole and end diastol...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2013.07.005
更新日期:2014-01-01 00:00:00
abstract::Serial platelet deposition, surface topography, and patency were evaluated in control (N = 28) and endothelial cell-seeded (N = 28) small-diameter (4 mm inner diameter) USCI Dacron grafts implanted in the carotid and femoral arteries of dogs. All dogs received aspirin (325 mg) daily for 2 weeks starting 24 hours prior...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00