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PURPOSE Valvular incompetence and venous wall abnormalities have been suggested as primary etiologic factors responsible for the development of varicose veins. This study was conducted to evaluate the connective tissue constituents of greater saphenous varicosities. Proteolytic activity, a factor that can lead to matrix degradation and cause weakening and(More)
A prominent metalloproteinase activity with an apparent molecular mass of 80 kD and additional activities at 67 through 70, 50, and 32 kD have been observed on casein, gelatin, and elastin gel zymography in extracts from abdominal aortic aneurysms (AAAs). The forms at 80, 50, and 32 kD were isolated by affinity to recombinant tissue inhibitor of(More)
BACKGROUND Studies of the connective tissue matrix of abdominal aortic aneurysms (AAAs) have yielded conflicting results, and the glycosaminoglycan content has not been previously reported. The present work was done to evaluate the matrix components of AAAs, including the cross-link content of the residual elastin. METHODS Aortic specimens from AAAs and(More)
PURPOSE To determine the effect of primary closure (PC) versus expanded polytetrafluoroethylene patch graft angioplasty (PGA) on the incidence of recurrent stenosis (> 50% lumen diameter narrowing) after carotid endarterectomy (CEA), 87 patients undergoing 100 consecutive CEA were prospectively randomized into two groups. METHODS Forty-four patients(More)
PURPOSE Perfusion of the isolated aorta of the rat with a saline solution containing pancreatic elastase induces an abdominal aortic aneurysm (AAA). An interesting feature of this model is the phenomenon of latency, suggesting that additional steps beyond the initial injury are required for AAA formation. This study was performed to determine whether the(More)
This study was performed to evaluate the presence of interstitial collagenase, now known as matrix metalloproteinase-1 (MMP-1), in specimens of abdominal aortic aneurysms (AAA). Eight AAA and four control infrarenal aortas were evaluated. After homogenization and extraction of soluble proteins, immunoblots of the extracts equalized for protein content were(More)
Epithelioid hemangioendothelioma (EH) is a rare, vascular neoplasm that can affect any age group and has been reported previously in sites including bone, liver, lung, breast, and brain. We describe a case of EH located in the mastoid, which appears to be the first report of EH in this site. The patient was 62 years old when they presented with dizziness(More)
OBJECT Hinge craniotomy (HC) has recently been described as an alternative to decompressive craniectomy (DC). Although HC may obviate the need for cranial reconstruction, an analysis comparing HC to DC has not yet been published. METHODS A retrospective review was conducted of 50 patients who underwent cranial decompression (20 with HC, 30 with DC).(More)
Lower-extremity ischemia can lead to impaired healing of saphenous vein excision sites in patients with significant peripheral vascular disease (PVD). Five patients who required infrainguinal revascularization for wound necrosis of the harvest site after coronary artery bypass grafting are described. The male/female ratio was 2:3 with a mean age of 67(More)
OBJECT A wide variety of spinal intradural pathology traditionally has been treated from a midline posterior laminectomy using standard microsurgical techniques. This approach has been successful in treating the pathology; however, it carries a risk of postoperative complications including CSF leakage, wound infection, and spinal instability. The authors(More)