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Surgical Cannulation of a Hepatic Vein in Dairy Cows Utilizing Diagnostic Ultrasound¹

Department of Animal Science

R. Hackett

Department of Clinical Sciences, Cornell University, Ithaca, NY 14853-4801

² Reprint requests.

ABSTRACT

Use of a diagnostic ultrasonography unit in the placement of hepatic vein catheters is described. Diagnostic ultrasound proved to be a safe and rapid means of identifying the hepatic venous circulation. It provided a clear visual guide in an otherwise blind surgical procedure and allowed for a precise determination of catheter placement. Thus, the method could be used to advantage in other types of catheterizations. Use of ultrasonography reduced the duration of surgery by 50 to 75%, thereby minimizing the risks associated with long-term general anesthesia and reducing recovery time.

¹ Research was supported in part by funds from the Cornell University Agricultural Experiment Station and US Department of Agriculture (Biotechnology Program) under Agreement Number 85-CRCR-1-1833. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of the US Department of Agriculture.