Biomedical subjects

C Vlastou

Publications and source records attributed to C Vlastou.

24 records · Page 2Linked to original sources

PubMed1983

Intraoperative heparin in replantation surgery--an experimental study.

An experimental study to define the usefulness of heparin in microvascular surgery was undertaken. Fifty-four rabbits underwent replantation of an amputated ear. The animals were randomly divided into two groups--"heparin" and "no heparin," with 27 animals in each group. Arterial patency was recorded based on direct microscopic observation of the anastomosed vessels prior to wound closure and on subsequent viability or necrosis of the ear during the surgical procedure was markedly enhanced by the use of intraoperative heparinization. The overall patency rate for the heparin group was 74%, whereas that of the no-heparin group was 44%--a statistically significant difference. This study confirms the value of intraoperative heparin in experimental replantation surgery using a rabbit ear model.

Animals↗

PubMed1980

Crossed fingers and other tests of ulnar nerve motor function.

All tests for ulnar nerve motor function require demonstration and explanation if they are to be carried out reliably. The tests used most commonly may be difficult to elicit, particularly in children or in the presence of an acute injury. The authors have found that the ability to cross the middle over the index finger is a reliable test of ulnar nerve function. This maneuver of "crossing the fingers" is in common usage from childhood on as a good luck sign and is elicited easily in the presence of an intact ulnar nerve. An annotated table is included of other tests that may be useful in evaluating ulnar nerve integrity.

Adult↗

PubMed1979

Effect of nerve graft polarity on nerve regeneration and function.

To evaluate the effect of the polarity of nerve grafts, a 1.0 cm segment of sciatic nerve of 40 adult male Sprague-Dawley rats was excised. In 20 animals the nerve was sutured, maintaining the original polarity. In the order 20 the graft was reversed and sutured into place. Four to 6 months later, the nerves were exposed and directed conduction velocity and amplitude studies were done across the graft. No difference was found between the two groups. Comparison with the control side showed return of 70% to 75% of conduction velocity and amplitude. Nerve graft function was independent of nerve graft polarity.

Animals↗

PubMed1978

Congenital arteriovenous malformation of the head and neck.

A discussion of congenital arteriovenous malformation of the head and neck based on five patients followed from three to twenty years is presented. Definition of the lesion and its progression as followed by angiography is described. The poor response to surgery is ascribed to the ischemic nature of the area of involvement. The concept of supplying normal tissue with normal vascularity to the involved area is advocated.

Adult↗

PubMed1978

Extraluminal or intraluminal inferior vena cava occlusion in pulmonary embolism.

Twenty-five cases of extraluminal and 47 of intraluminal inferior vena caval (IVC) occlusion for management of pulmonary embolism were reviewed. A comparison of results obtained with both methods suggests that the IVC umbrella filter provides the safer, more reliable means of IVC interruption in patients whose condition fulfills the criteria for caval occlusion. The simplicity of this technique and the fact that it can be performed under local anesthesia justify its consideration as the procedure of choice for IVC occlusion and permit its use in severely ill patients. On the basis of our positive findings, we now recommend that extraluminal occlusion be reserved for patients in whom insertion of the IVC umbrella is technically impossible.

Adult↗

PubMed1977

Peripheral vascular trauma: a civilian experience.

A detailed review of 106 vascular injuries seen at the Mt. Sinai Hospital of Cleveland in a period of six-and-a-half years is presented. The type and location of the vascular injuries, the concomitant injuries, the preoperative evaluation, operative and post operative management, the complications and their management are discussed. The overall amputation rate in our cases was 4.7%, and for popliteal artery injuries 20%. The mortality rate was 5.6%.

Adolescent↗