Relevance of using bispectral index monitoring to stabilize hemodynamic parameters in patients undergoing cardiac surgery under cardiopulmonary bypass by better titration of anaesthetic agents

Authors

  • Varun Ramamurthy Department Anesthesia and Critical Care Saveetha Medical College, Chennai, Tamil Nadu
  • K.T. Ramadas Department of Anaesthesiology Calicut Medical College Kerala
  • S. Harikrishanan Department of Anaesthesiology Calicut Medical College Kerala

DOI:

https://doi.org/10.18203/2349-2902.isj20161161

Keywords:

BIS monitoring, Cardiac anaesthesia, Hemodynamic

Abstract

Background:The aim of our study is to find the relevance of using a bispectral index (BIS) monitor, a neurophysiological monitoring device, in patients undergoing cardiopulmonary bypass and measure their hemodynamic stability due to better titration of anaesthetic drugs.

Methods: After approval of the ethical committee and  informed consents, forty patients were included in this study, age ranging between 45 and 60 years, of both sexes, scheduled for elective coronary bypass surgery or valve replacement done with cardiopulmonary bypass (CPB) were selected. This was a prospective, randomized, controlled study in which the subjects were randomly allocated into 2 groups of 20 each as per random number chart. They were

(I) BIS monitor group (group A) where A the administration of propofol and isoflurane were controlled to achieve the target range of 40-60 BIS value and (II) BIS blinded to anaesthesiologist group (group B), where  the BIS values were blinded to the anesthesiologist and the administration of propofol and isoflurane were left to the anesthesiologist's discretion.

Results:Patient in group A had stable hemodynamic in that the incidence of fluctuation of blood pressure were only 15% while it was 80% in group B. Similarly the fluctuations in heart rate were 10% in group A and 75% in group B.

Conclusions:By using Bispectral index monitor we can maintain a better hemodynamic stability in patients during cardiac surgery under cardiopulmonary bypass. This finding was in agreement to similar studies conducted by various researchers.

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Published

2016-12-08

Issue

Section

Original Research Articles