Electrocardiography in Dogs Anesthetized with Sevoflurane Submitted at Iohexol Subarachnoid Administration
WSAVA 2002 Congress
*Danielli Parrilha de Paula, Alessandra Valeiro Leite, Newton Nunes, Márlis Langenegger de Rezende, Celina Tie Nishimori, Paulo Sérgio Patto dos Santos
*Universidade Estadual Paulista - FCAV - Jaboticabal, Via de acceso Prof, Paulo Donato Castellane s/n° - zona rural
Jaboticabal, São Paulo, BR
dparrilha@hotmail.com

OBJECTIVES

The aim of this study was to evaluate the effects of iohexol subarachnoid application in the electrocardiography of dogs anesthetized with sevoflurane.

MATERIALS

Fifteen adult healthy male and female mongrel dogs were used. The anesthetic induction was made, through mask, using sevoflurane at 2.5 MAC diluted at 1 l/min oxygen (O2). After intubation, the O2 was adjusted to 30 ml/kg/min and the vaporizer to 1.5 MAC. The dogs were positioned at left lateral recumbency with the heads elevated 30° degree from the table and remained at this position during all the experimental period. After 30 minutes, the liquor was collected (0.3 ml/kg) from the magne cistern at subarachnoid space. Immediately after, the iohexol 30% (0.3ml/kg) was injected slowly. The electrocardiographic study was done in the D2 lead during the whole experimental period. The amplitude and duration of the electrocardiographic waves and heart rate were measured. The measurements were realized at: M1 - immediately before the drugs administration; M2 - 30 minutes after the induction; M3 - immediately after iohexol administration; and at each 10 minutes after M3 (M4, M5, M6, M7, M8, and M9). The numerical data were submitted to Tukey test (p<0.05).

RESULTS

It was not possible to detect significant differences between the groups, during the experimental period, neither among the moments in each group. All the values remained constant without significant physiological or statistical alterations.

CONCLUSION

The results allow us to conclude that the iohexol subarachnoid application in dogs anesthetized with sevoflurane didn't cause significant electrocardiographic alterations.

Speaker Information
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Márlis Langenegger de Rezende
Universidade Estadual Paulista - FCAV - Jaboticabal
Via de acceso Prof. Paulo Donato Castellane s/n° - zona rural
Jaboticabal, SP 14884-900 BR

Newton Nunes
Universidade Estadual Paulista - FCAV - Jaboticabal
Via de acesso Prof. Paulo Donato Castellane s/n° - zona rural
Jaboticabal, São Paulo/ SP 14884-900 BR

Danielli Parrilha de Paula
Universidade Estadual Paulista - FCAV - Jaboticabal
Via de acceso prof, Paulo Donato Castellane s/n° - zona rural
Jaboticabal, São Paulo/ SP 14884-900 BR

Paulo Sergio Patto dos Santos
Universidade Estadual Paulista - FCAV - Jaboticabal
Via de acceso Prof. Paulo Donato Castellane s/n° - zona rural
Jaboticabal, SP 14884-900 BR

Celina Tie Nishimori
Universidade Estadual Paulista - FCAV - Jaboticabal
Via de acesso Prof. Paulo Donato Castellane s/n° - zona rural
Jaboticabal, São Paulo/ SP 14884-900 BR

Alessandra Valeiro Leite
Universidade Estadual Paulista - FCAV - Jaboticabal


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