Abstract:
PURPOSE:Intraoperative duplex scanning (IDS) after carotid endarterectomy (CEA) has been shown to reliably identify major defects either by significant changes in peak systolic velocities or by B-mode imaging. To evaluate whether IDS could also predict postoperative strokes in technically flawless CEAs, we analyzed several hemodynamic parameters and correlated them with patient outcome. METHODS:From March 2000 to February 2001, 226 consecutive primary CEAs were performed in 208 patients (120 men). Of these, 153 lesions were asymptomatic. General anesthesia and synthetic carotid artery patches were used routinely. Intraluminal shunts were used when internal carotid artery (ICA) back-pressures were <50 mm Hg (35% of cases). IDS consisted of B-mode and color-flow imaging and spectral analyses of the common, external, and internal carotid arteries. Volume flows were measured three times, and the mean flow rate was used for this study. RESULTS:The first set of data was analyzed when the twenty-ninth patient had the second immediate postoperative stroke. It was noted that the two patients who had postoperative strokes had mean ICA volume flows (MICAVF) of 48 mL/min and 85 mL/min. Only two additional patients had MICAVF <100 mL/min. The remaining 25 cases had MICAVF ranging from 102 to 299 mL/min, with a mean of 165 +/- 57 mL/min (+/-SD) (P <.02). Although there was a significant correlation between MICAVF and ICA peak systolic velocity (P <.01), the latter was not found to be a significant predictor of postoperative stroke. Moreover, end-diastolic velocities, resistive index, ICA diameter, and ICA back-pressure also did not correlate with neurologic events. These findings led us to change our protocol for patients with MICAVF <100 mL/min. This included a repeat set of volume flow measurements after 15 to 20 minutes, withholding the reversal of heparin, and the liberal use of completion arteriography. Of the following 197 CEAs, 26 (13%) were found to have MICAVF <100 mL/min (range 55 to 99 mL/min; mean 79 +/- 18 mL/min). Of these, five had arteriography that documented spasm of the intracranial portion of the ICA in four and a small-diameter ICA (<2 mm) in one. Except for the five cases, the remaining 21 cases had MICAVF >100 mL/min (range 105 to 158 mL/min, mean 127 +/- 20 mL/min [+/-SD]) on repeat study. Four patients with persistent ICA low flow (70 to 99 mL/min) were treated with postoperative anticoagulation. One of the last 197 patients had a stroke caused by hyperperfusion syndrome 2 weeks after operation. Overall, six of 226 cases (2.7%) required revision on the basis of abnormal B-mode imaging results or peak systolic velocities >150 cm/s. There were two common carotid artery flaps, two ICA stenoses, one ICA flap, and one localized thrombus. All six were successfully revised and had repeat normal IDS study results, and none of these patients had a postoperative stroke. CONCLUSIONS:IDS is helpful in identifying residual lesions or defects that may contribute to postoperative neurologic deficits. MICAVF <100 mL/min are suggestive of spasm that could lead to thrombus formation and stroke, particularly in the presence of synthetic patches. We suggest that heparin reversal should not be used unless ICA flow rates are >100 mL/min. ICA spasm is short lived in most patients undergoing CEA.
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Ascher E,Markevich N,Hingorani AP,Kallakuri S,Gunduz Ydoi
10.1067/mva.2002.120044subject
Has Abstractpub_date
2002-03-01 00:00:00pages
439-44issue
3eissn
0741-5214issn
1097-6809pii
S0741521402290680journal_volume
35pub_type
杂志文章abstract:OBJECTIVE:Successful thoracic endovascular aneurysm repair (TEVAR) requires adequate proximal and distal fixation and seal. We report our experience of planned celiac artery coverage during endovascular repair of complex thoracic aortic aneurysms (TAA). METHODS:Since 2004, 228 patients underwent TEVAR under elective (...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2010.06.105
更新日期:2010-11-01 00:00:00
abstract:OBJECTIVE:To validate the Glasgow Aneurysm Score (GAS) in patients with ruptured abdominal aortic aneurysms (AAAs) treated with endovascular repair or open surgery and to update the GAS so that it predicts 30-day mortality for patients with ruptured AAA treated with endovascular repair or open surgery. METHODS:In a mu...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jvs.2008.12.027
更新日期:2009-05-01 00:00:00
abstract:OBJECTIVE:This study assessed the role of multibranched stent grafts for thoracoabdominal aortic aneurysm (TAAA) repair. METHODS:Self-expanding covered stents were used to connect the caudally directed cuffs of an aortic stent graft with the visceral branches of a TAAA in 22 patients (16 men, 6 women) with a mean age ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.08.032
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:Conventional pre-endovascular procedural evaluation uses both noninvasive testing and diagnostic arteriography. Diagnostic and therapeutic procedures often must be performed separately because of concerns about excessive contrast administration or inappropriate location of vascular access for the interventional...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(98)70025-4
更新日期:1998-12-01 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:BACKGROUND:Cold-induced injury to various cell types has been shown to be mediated predominantly by chelatable iron. For endothelial cells, this type of injury has so far only been shown in cultured cells. Hypothesizing that this iron-dependent cold-induced injury might also occur in the endothelium of intact vessels, ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.09.048
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:Acute thoracic aortic injury resulting from blunt trauma is a life-threatening condition. Endovascular therapy is a less invasive treatment modality that may potentially improve patient outcomes. We reviewed our experience with patients who sustained blunt thoracic aortic injuries distal to the left subclavi...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.07.029
更新日期:2007-11-01 00:00:00
abstract::Aortic and renal vascular reconstruction often involve significant renal ischemia. Profound hypothermia during renal ischemia preserves renal tissue. However, in the clinical setting of vascular reconstruction specific attempts at cooling the kidney are often impractical, and renal ischemia frequently occurs at physio...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1992-04-01 00:00:00
abstract:PURPOSE:This study evaluated the values of transcutaneous oxygen tension (TcPo(2)) measurement in diabetic patients compared with nondiabetic patients and assessed its reproducibility. METHODS:In 60 diabetic patients (type 1 and type 2 diabetes mellitus) without signs of peripheral arterial disease or neuropathy, we m...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2008.03.010
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND:Sarcopenia has been proposed as a prognostic factor for various diseases. Patients with critical limb ischemia (CLI) have a very poor prognosis, but sarcopenia has not been reported as a prognostic factor for CLI patients. If sarcopenia is associated with the prognosis of CLI patients, it could help select t...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2014.10.094
更新日期:2015-04-01 00:00:00
abstract:PURPOSE:The purpose of this study was to provide a quantitative evaluation of the effect of adjacent segment lesions on disease classification in lower limb arteries by ultrasonic duplex scanning. METHODS:Lower limb arterial duplex scanning from the distal aorta to the popliteal artery was performed in 55 patients. Ar...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(94)70038-9
更新日期:1994-04-01 00:00:00
abstract::A knitted Dacron velour externally supported prosthesis was broken in two pieces at the supported portion 3 years after femoroposterior tibial bypass grafting. This type of graft problem has never been reported. Details of the clinical course, angiogram, CT scan, and scanning electron micrograph of a portion of the gr...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1990.19861
更新日期:1990-07-01 00:00:00
abstract:OBJECTIVE:This prospective, observational study evaluated the safety and efficacy of cryopreserved arterial allograft reconstruction in the management of major peripheral arterial graft infections. METHODS:From April 1996 to May 2003, data from patients with major peripheral arterial graft infection who underwent graf...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2004.09.025
更新日期:2005-01-01 00:00:00
abstract::Aneurysms of the infrapopliteal arteries are rare and commonly associated with trauma. Most appear as false aneurysms. Because they are quite rare events, we describe for the first time in the English-language literature two cases of a combination of true aneurysms of the popliteal and tibial arteries. Symptoms at ini...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/s0741-5214(96)70104-0
更新日期:1996-08-01 00:00:00
abstract:OBJECTIVE:The main objective of this study was to define a role of sphingosine-1-phosphate receptor 1 (S1PR1) in the arterial injury response of a human artery. The hypotheses were tested that injury induces an expansion of S1PR1-positive cells and that these cells accumulate toward the lumen because they follow the sp...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2018.02.053
更新日期:2018-12-01 00:00:00
abstract:PURPOSE:Radiofrequency ablation (RFA) of the greater saphenous vein (GSV; "closure") is a relatively new option for treatment of venous reflux. However, our initial enthusiasm for this minimally invasive technique has been tempered by our preliminary experience with its potentially lethal complication, deep venous thro...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2004.04.032
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:The risk of patients dying of pulmonary embolism (PE) or bleeding during the treatment of deep vein thrombosis (DVT), and whether these risks are influenced by patient age, has not been thoroughly studied. METHODS:We used data from the Registro Informatizado de la Enfermedad TromboEmbólica (RIETE) to assess...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2011.05.114
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:This study assessed whether the duplex ultrasound (DUS)-derived gray-scale median (GSM) of the most six distal portion of the occluded femoral-popliteal arterial segment can predict success of lumen re-entry for subintimal angioplasty. METHODS:During the last 3 years, 108 patients (62% men) with a mean age o...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.09.039
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:This study was undertaken to evaluate in vivo the effect of recombinant hirudin (r-hirudin [HBW 023]), a potent thrombin inhibitor, on the process of microvascular thrombus formation and recanalization. METHODS:Thrombosis was induced photochemically in distinct arterioles (n = 25) and venules (n = 30) of the e...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(98)70136-3
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:Impaired venous drainage in severe chronic venous insufficiency (CVI) leads to microcirculatory overload, characterized by erythrocyte diapedesis and subsequent extravascular hemolysis, resulting in typical dermal hemosiderin deposition. We hypothesized that hemosiderin, normally absent, could be present in t...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2003.64
更新日期:2003-01-01 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:This study was performed to define the incidence of acute deep venous thrombosis (DVT) after endovascular treatment of abdominal aortic aneurysms (AAAs). Because aortic endograft placement requires prolonged femoral vessel instrumentation, it may be hypothesized that these patients are at increased risk for d...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2002.128640
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVE:The external carotid artery (ECA) serves as a major collateral pathway for ophthalmic and cerebral artery blood supply. It is routinely examined as part of carotid duplex ultrasound, but criteria for determining ECA stenosis are poorly characterized and typically extrapolated from internal carotid artery data...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2019.10.099
更新日期:2020-09-01 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:OBJECTIVE:Vascular smooth muscle cell (VSMC) proliferation plays an important role in the development of postangioplasty or in-stent restenosis, venous graft failure, and atherosclerosis. Our previous work has demonstrated S-phase kinase-associated protein-2 (Skp2), an F-box subunit of SCF(Skp2) ubiquitin ligase, as an...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2009.07.066
更新日期:2009-11-01 00:00:00
abstract::The use of percutaneous angioplasty with subsequent intravascular metallic stent placement has gained increasing acceptance over the past decade. Infections of these stents appear to be uncommon; however, the rarity of this complication may in part be the result of a lack of availability of long-term follow-up data. A...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2002.127340
更新日期:2002-09-01 00:00:00
abstract::Surgical revascularization of the lower extremity using bypass grafts to distal target arteries is an established, effective therapy for advanced ischemia. Recent multicenter data confirm the primacy of autogenous vein bypass grafting, yet there remains significant heterogeneity in the utilization, techniques, and out...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2010.06.015
更新日期:2010-09-01 00:00:00
abstract:PURPOSE:Outcome and venous patency after reconstruction in major pelvic and extremity venous injuries was studied. METHODS:We retrospectively reviewed 46 patients with 47 venous injuries. RESULTS:Injuries were caused by penetrating trauma in 37 extremities, blunt trauma in 6 patients, and were iatrogenic in 4 patient...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(98)70068-0
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND:The Centers for Medicare and Medicaid Services (CMS) have established guidelines that outline patients who are considered "high risk" for complications after carotid endarterectomy (CEA) for which carotid artery stenting (CAS) may provide benefit. The validity of these high-risk criteria are yet unproven. In...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2012.12.075
更新日期:2013-07-01 00:00:00
abstract:PURPOSE:This is a review of 100 consecutive supraaortic trunk reconstructions (SAT) performed over 16 years. METHODS:There were eight innominate endarterectomies and 92 bypass procedures based on the thoracic aorta (n = 86) or proximal innominate artery (n = 6) in 98 patients 24 to 79 years of age. Indications include...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(98)70289-7
更新日期:1998-01-01 00:00:00