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Permanent Implantation of Arterial and Venous Catheters and Lymphatic Shunts¹

Department of Animal Science, Iowa State University, Ames 50010

ABSTRACT

Introduction

In many nutrition studies, chronic, longterm intravascular or lymphatic catheterization of animals frequently is desirable to facilitate blood and lymph sampling, pressure recording, and infusions with minimal disturbance of the animal. Numerous precedures for catheterization have been described. These procedures range from simple percutaneous catheterization of vessels close to the body surface to extensive surgical techniques for the catheterization of deep vessels that require special precautions in exteriorization and stabilization of the catheters. All are subject to a number of technical difficulties, especially if long-term stability and patency of the catheters is important.

A number of factors are considered in the selection of a catheterization procedure. A Principal factor is the relative size and accessibility of the vessel to be cannulated. There are a number of other factors, however, to consider. Some of these are the size of samples and the frequency and rapidly of collecting them, anatomical differences between species,

¹ Journal Paper J-7000 of the Iowa Agriculture and Home Economics Experiment Station, Arnes, Iowa. Project 1908. Supported in part by funds provided by Grant HE-0496C4, Department of Health, Education, and Welfare.