Eletrocardiografia em saguis (Callithrix jacchus - Linnaeus, 1758) mantidos em cativeiro e contidos quimicamente com quetamina S(+) e midazolam

Abstract

The variables analyzed were: Heart rate (HR), rhythm, mean electrical axis (MEA), P wave, QRS complex, PR and QT interval, ST segment andT wave. Results showed: FC (303±37,22 bpm); P (0,2±0,08 mV and 0,03±0,001 sec.); PR (0,07±0,001 sec.); QRS (0,36±0,34 mV and 0,03±0,01 sec.); QT (0,14±0,02 sec.). Normal sinus rhythm was dominant (100%), however, two animals presented suggestive pattern of left anterior fascicle block, and one animal, pattern of right branch block. The MEA varied from 0˚ a -150˚, with 40% of animals showing within the range +30˚ to +60˚. These findings may contribute to the recognition of abnormal rhythms in this species of primate, as well as to future investigations in cardiovascular diseases diagnosed in primates and humans. The objective of this work is to evaluate electrocardiographic profile in 20 saguis (Callithrix jacchus - Linnaeus, 1758) kept in captivity, undergoing anesthetic protocol with ketamine S(+) and midazolam.