Research Journal of Medical Sciences
ISSN: Online 1993-6095ISSN: Print 1815-9346
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Evaluation of Bispectral Index and Incidence of Awareness in Anaesthesia for Open Heart Surgeries Done Under Cardiopulmonary Bypass
Prasandan Thayyil, Rommy Geever, Sahil , Thavamani , P. Jayakumar and Madhu Shankar
Page: 289-292 | Received 09 Dec 2023, Published online: 10 Feb 2024
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Abstract
To evaluate bispectral index and incidence of awareness in anaesthesia for open heart surgeries done under cardiopulmonary bypass. A total of 61 adult patients undergoing elective open‐heart surgeries under CPB were selected and assessed for bispectral index (BIS). The study showed that the BIS values were within acceptable limits throughout surgery. A mean BIS value of 52.03±0.51 was recorded at 37oC core body temperature of rewarming and it was the highest BIS value during the CPB period. It was observed that the BIS value changed by 1.48 units with every 1oC change in temperature. None of the patients had any incidence of recall of intraoperative events when assessed with modified BRICE questionnaire. The highest chance of awareness during CPB was during the rewarming time and least chance of awareness was during the hypothermic phase based on the BIS. The BIS value decreased with decrease in temperature and increased with increase in temperature.
How to cite this article:
Prasandan Thayyil, Rommy Geever, Sahil , Thavamani , P. Jayakumar and Madhu Shankar. Evaluation of Bispectral Index and Incidence of Awareness in Anaesthesia for Open Heart Surgeries
Done Under Cardiopulmonary Bypass.
DOI: https://doi.org/10.36478/10.59218/makrjms.2024.2.289.292
URL: https://www.makhillpublications.co/view-article/1815-9346/10.59218/makrjms.2024.2.289.292