Journal of vascular surgery
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Review Meta Analysis
Neurological complications after left subclavian artery coverage during thoracic endovascular aortic repair: a systematic review and meta-analysis.
Recent studies suggest an increased risk of neurologic complications after coverage of the left subclavian artery (LSA) during thoracic endovascular aortic repair (TEVAR). The preventative role of preoperative revascularization of the LSA using carotid-subclavian bypass or transposition remains controversial. We assessed this increased risk and the role of revascularization by undertaking a systematic review and meta-analysis of the literature. ⋯ The risk of neurologic complications is increased after coverage of the LSA during TEVAR. Preemptive revascularization offers no protection against CVA, perhaps indicating a heterogeneous etiology. Revascularization may reduce the risk of SCI, although limited data tempers this conclusion. Improved or perhaps compulsory reporting to registries of a minimum data set may help further assess the exact etiology of these complications and identify a higher-risk subset of patients in whom revascularization might prove protective.
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The goal of this study was to assess the frequency and predictors of major amputation with patent endovascular-treated arterial segments (PETAS) in patients with critical limb ischemia. ⋯ Amputation despite PETAS is the most common means of limb loss in patients undergoing endovascular revascularization for limb salvage. It is likely the result of aggressive attempts at limb salvage and usually occurs
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The routine use of intraoperative electroencephalography (EEG) monitoring with selective shunt placement during carotid endarterectomy (CEA) has been shown to be safe and effective. We attempt to identify the anatomic and clinical factors associated with significant EEG changes requiring shunt placement during CEA. ⋯ CEA performed with routine EEG monitoring and selective shunt placement is associated with a low risk of perioperative stroke. Identified predictors of significant EEG changes were anatomic factors including degree of contralateral carotid artery disease and moderate ipsilateral carotid artery stenosis (50% to 79%). Although contralateral carotid occlusion has been accepted as indication for shunt placement in the absence of cerebral monitoring, this study suggests that high-grade contralateral disease and moderate ipsilateral carotid stenosis are associated with cerebral ischemia resulting in EEG changes and should prompt consideration for nonselective shunting.
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Review Case Reports
Vertebral artery stent graft for a chronic symptomatic vertebrojugular arteriovenous fistula.
A patient with a chronic, symptomatic V2 segment vertebrojugular fistula was successfully treated with a vertebral artery stent graft, with immediate tinnitus resolution. No early or late complications were observed, and at 45 months of follow-up, the patient remains asymptomatic with a patent stent graft. The existing literature on stent graft treatment of vertebrojugular fistula is reviewed.