Cliff Swanson, D.V.M., M.S.
Associate Professor of Anesthesia, College of Veterinary Medicine, Department of Molecular Biomedical Sciences.
Phone: (919) 513-6298
Fax: (919) 513-6465
Dr. Swanson received his DVM from The Ohio State University and is board-certified by the American College of Veterinary Anesthesiologists. At NC State he is an Associate Professor of Anesthesiology in the Department of Molecular Biomedical Sciences. His academic interest is in using heart rate spectral analysis, a noninvasive technique, to describe autonomic nervous system function and the affects of drugs on it, in a variety of species.
My primary interest is in studying the affects of analgesics and anesthetics on autonomic nervous system function in fish. Recent technological developments enable us to wirelessly transduce electrocardiographic (ECG) signals from conscious fish directly through the water. I have previous experience using heart rate spectral analysis as a means of noninvasively describing event- and drug-evoked changes in mammalian autonomic nervous system modulation. My intention is to similarly use power spectral analysis of fish ECG data as a means of monitoring studying stress and pharmacodynamics in fish.
I am finishing the process of personally building a data collection and analysis system in cooperation with researchers in Sweden and Denmark who recently published a paper describing a data collection method that improved upon those previously used for acquiring fish ECG data non-invasively 1. The device is a cylindrical chamber fabricated from 6 inch diameter, clear, PVC pipe. AgCl electrodes embedded in semicircular wells formed in the pipe are cabled to a computer based analog-digital data acquisition and analysis system. We will be testing this system soon, debugging, and begin using it to describe autonomic changes secondary to handling stress and analgesics in koi fish.
Carter JE, Campbell NB, Posner LP, Swanson C. The Hemodynamic Effects of Medetomidine
Continuous Rate Infusions in the Dog. Veterinary Anesthesia Analgesia. 2010. 37(3);197-206.
J. Altimiras and E. Larsen (2000). Non-invasive recording of heart rate and ventilation rate in rainbow trout during rest and swimming. Fish go wirless! J. Fish Biol. 57, 197-209.