Accession Number : ADA138583

Title :   An Aortic Sideport Catheter for Rapid Hemorrhage In Unheparinized Swine.

Descriptive Note : Interim rept. Sep 82-Dec 84,

Corporate Author : LETTERMAN ARMY INST OF RESEARCH PRESIDIO OF SAN FRANCISCO CA

Personal Author(s) : Traverso,L W

PDF Url : ADA138583

Report Date : Jan 1984

Pagination or Media Count : 18

Abstract : Rapid hemorrhage is necessary to obtain reproducible mortality in chronically instrumented, unanesthetized, and unheparinized swine. Bleeding catheters could not always deliver the 3.6 ml/kg/min of blood necessary over the 15 minutes required by a rigid experimental design. Catheters become occluded before or during hemorrhage by thrombosis around the outside of the intraaortic portion of the catheter creating a one way valve. By shortening the intraaortic catheter portion to 2 mm from 10 mm and devising an operative technique to insert the catheter the failure rate significantly decreased from 18.8% (n=149). The absence of a significant foreign body surface area in the blood stream allows the aortic sideport catheter to function as a rapid hemorrhage conduit many days later without the use of heparin.

Descriptors :   *Catheters, Hemorrhage, High rate, Fluid flow, Blood, Failure, Rates, Reduction, Swine

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE