Eletrocardiografia em quatis (Nasua nasua – Linnaeus, 1766) mantidos em ativeiro e contidos quimicamente com quetamina e xilazina

Abstract

The objective of this work is to evaluate electrocardiographic profile in 21 coatis(Nasua nasua - Linnaeus, 1766) kept in captivity, undergoing anesthetic protocol with ketamine and xylazine. The variables analyzed were: Heart rate (HR), rhythm, mean electrical axis (MEA), P wave, QRS complex, PR and QT interval, ST segment and T wave. Results showed: FC (157.62±28.22 bpm); P(0.058±0.021 mV and 0.03±0.0056 sec.); PR (0.07±0.0097 sec.); QRS (0.551±0.20 mV and 0.0335±0.0055 sec.); QT (0.165±0.017 sec.). Normal sinus rhythm was dominant (90.48%), however, animal one presented suggestive pattern of left anterior fascicle block. Two animals had sinus arrhythmia with wandering pacemaker (9.52%). The MEA varied from -30û a + 90û with a more frequent interval (90.48%) from +60û a +90û. The values observed for the coatis were similar to those of domestic cats (voltage and P-QRS complex) and domestic dogs (MEA).