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Hemodynamic and electrocardiographic effects of different combinations of midazolam and opioids in healthy dogs

Grant number: 18/11947-2
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2018
Effective date (End): August 31, 2019
Field of knowledge:Agronomical Sciences - Veterinary Medicine - Animal Clinics and Surgery
Principal Investigator:Beatriz Perez Floriano
Grantee:Mariana de Andrade Ferreira
Host Institution: Centro Universitário Faculdades Integradas de Ourinhos. Fundação Educacional Miguel Mofarrej. Ourinhos , SP, Brazil

Abstract

Opioids, together with benzodiazepines, are widely used drugs for routine sedation aiming at minimizing perioperative stress, pain and discomfort. Methadone and fentanyl are opioids that present particularities capable of causing cardiovascular changes, which differs from morphine and butorfanol, also opioids, but which do not cause significant changes in the same system. The object of this study is to compare cardiovascular changes of dogs sedated with intramuscular midazolam combined with different opioids. Twenty-four healthy client-owned dogs will be enrolled in four groups of six subjects and will be sedated with a combination of midazolam and morphine (GMOR), methadone (GMET), butorfanol (GBUT) or fentanyl (GFEN). Recordings will be taken before (MB) and 20 minutes following sedation (MS). Mean arterial pressure will be obtained through oscillometry. Heart rate will be obtained through electrocardiography and cardiac index will be assessed by echocardiography. The left ventricular work index and total peripheral resistance index will be further calculated. Data will be analyzed for distribution using the Kolmogorov-Smirnov test and mean comparisons will be performed using ANOVA or Kruskal-Wallis test followed by Tukey or Dunn test, under 5% significance. The project was designed to be executed in 12 months and the results will be published in scientific journals and events.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FERREIRA, MARIANA DE ANDRADE; POSSIDONIO, GEOVANA; AFONSO, CAROLINY SANTOS; RIBEIRO, INGRID VOLPE; MOREIRA, TALITA F.; MARQUES, MARCEL GAMBIN; XAVIER ABIMUSSI, CAIO JOSE; FLORIANO, BEATRIZ PEREZ. Hemodynamic Effects of Different Combinations of Midazolam and Opioids in Healthy Dogs. TOPICS IN COMPANION ANIMAL MEDICINE, v. 46, . (18/11947-2)

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