Effects of ketamine, propofol and isoflurane on electrocardiographic variables in clinically healthy dogs premedicated with medetomidine and midazolam
محل انتشار: گفتمان پژوهش دامپزشکی، دوره: 15، شماره: 4
سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 112
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شناسه ملی سند علمی:
JR_VRFAN-15-4_003
تاریخ نمایه سازی: 28 فروردین 1403
چکیده مقاله:
The purpose of this study was to investigate the effects of three anesthetic agents, with premedication of medetomidine and midazolam, on electrocardiographic variables in dogs. Ten adult mixed breed dogs were used in a crossover design study, where they received ketamine, propofol and isoflurane treatments with a one-week washout period between them. In all three groups, medetomidine was administered first followed by midazolam after ۱۵ min. Then, after ۲۰ min, group ۱ received ketamine intravenously (IV), group ۲ received propofol (IV), and group ۳ received isoflurane (inhalation). In all dogs, electrocardiographs were taken before and after premedication’s, as well as every ۱۵ min during anesthesia. Medetomidine significantly decreased heart rate and P wave amplitude and increased PR interval, R wave amplitude, QT interval, and T wave amplitude. Midazolam increased the amplitude of the R and T waves. Ketamine increased the heart rate and PR interval. Propofol increased the heart rate for up to ۱۵ min, decreased the PR interval for up to ۳۰ min, and the QT interval for up to ۴۵ min. Isoflurane increased the heart rate and decreased the amplitude of R and T waves. The results showed that the drugs used in this study did not have many side effects on electrocardiographic variables and could be used without serious concern. The most important side effects observed were a severe reduction in heart rate and ۱st degree atrioventricular (AV) block and, to a lesser extent, ۲nd degree AV block caused by medetomidine and midazolam which were masked by the anesthetics.
کلیدواژه ها:
نویسندگان
Masoud Khaleghi
DVM Graduate, Faculty of Veterinary Medicine, University of Zabol, Zabol, Iran
Ali Asghar Sarchahi
Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
Hossein Kazemi Mehrjerdi
Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
Mehdi Rasekh
Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Zabol, Zabol, Iran
Dariush Saadati
Department of Food Hygiene, Faculty of Veterinary Medicine, University of Zabol, Zabol, Iran
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