Lewis J Levien

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PURPOSE Six cases of adventitial cystic disease were studied, and the existing theories of the aetiology of adventitial cystic disease were reviewed to present evidence in support of a variation of the developmental hypothesis that might explain the sites of occurrence of this rare condition. METHODS Cases of adventitial cystic disease were collected by(More)
PURPOSE This report summarizes our experience with the popliteal entrapment syndrome in 88 limbs (48 patients) treated during a 10-year period. METHOD The study cohort consisted of a retrospective analysis of those patients who were seen with symptoms of claudication or severe ischemia by a single surgical group and in whom unequivocal evidence of(More)
OBJECTIVE Nonfunctional popliteal entrapment is due to embryologic maldevelopment within the popliteal fossa. Functional entrapment occurs in the apparent absence of an anatomic abnormality. Gastrocnemius hypertrophy has been associated with the latter. Both forms of entrapment may cause arterial injury and lower limb ischemia. This study assessed the(More)
Hemopure (hemoglobin glutamer-250 [bovine]; HBOC-201) is a hemoglobin (Hb)-based oxygen carrier registered with the Medicines Control Council of South Africa. It is indicated for the treatment of adult patients who are acutely anemic, for the purpose of maintaining tissue oxygen delivery thus eliminating, delaying, or reducing the need for allogeneic red(More)
Popliteal vascular entrapment is second only to atherosclerosis as the most common surgically correctible cause of leg claudication in young adults. Affected patients are often athletic individuals who present before the age of 50. This chapter highlights the abnormal developmental anatomy that is now accepted as the cause of popliteal entrapment and serves(More)
This study examined the hypothesis that diabetes mellitus predisposes the brain to irreversible ischaemic damage rather than to reversible transient ischaemic attacks. Of 525 patients presenting with transient or minor strokes, 54 patients were found to have diabetes mellitus and 471 patients had no evidence of diabetes. The diabetic subgroup was(More)
OBJECTIVES This study was performed to demonstrate the value and durability of intraoperative retrograde angioplasty for stenotic lesions of the aortic arch branches at the time of carotid endarterectomy for the treatment of tandem proximal and bifurcation carotid lesions. DESIGN Retrospective analysis of the clinical data. METHODS Forty-four patients(More)
BACKGROUND We present the results of a previously unpublished hemoglobin-based oxygen carrier (HBOC) study conducted in 1998-1999. METHODS In a multicenter, randomized, single-blind, comparative study of HBOC-201 versus allogeneic red blood cell (RBC) transfusions, no-cardiac surgery patients received HBOC-201 to a maximum of 7 units (n = 83) or RBCs (n =(More)
The purpose of this study was to investigate whether the anatomic origin of micro-emboli influences their intracranial distribution. In twenty-two baboons, we examined the distribution of 99-Technetium labelled albumin aggregates (5 to 40 microns in size) after injection into the circulation at the left atrium (LA), carotid trifurcation (CA), and anterior(More)