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Bispectral index analysis during cardiac arrest and cardiopulmonary resuscitation in a propofol-anesthetized calf


Aprea, Francesco; Martin-Jurado, Olga; Jenni, Simon; Mosing, Martina (2014). Bispectral index analysis during cardiac arrest and cardiopulmonary resuscitation in a propofol-anesthetized calf. Journal of Veterinary Emergency and Critical Care, 24(2):221-225.

Abstract

Objective: To describe bispectral index (BIS) findings and compare them with cardiovascular and respiratory trends during cardiac arrest and successful CPR in a propofol-anesthetized calf.
Case Summary: A 3-month-old calf was anesthetized as part of a research project. A thromboxane analog drug (U46619) was administered IV to induce pulmonary hypertension. Within 10 minutes following U46619 administration, cardiac activity deteriorated, leading to asystole. At this point, BIS and suppression rate were 0 and 100, respectively. Anesthetic drug delivery was discontinued and external chest compressions were initiated. During CPR, end-tidal CO2 concentration decreased and BIS increased, but no spontaneous cardiac activity was noted, thus IV epinephrine was administered. Return of spontaneous circulation was achieved and systemic arterial hypertension developed, while BIS briefly decreased and then increased during the following 2 minutes. The calf's cardiopulmonary variables returned to physiological ranges within 10 minutes after the return of spontaneous circulation and remained stable.
Unique Information Provided: This is the first report in which BIS is documented together with standard monitoring techniques during cardiopulmonary arrest and resuscitation in a calf. BIS varied with cardiovascular performance, and may be indicative of cerebral blood flow in this context. Further research may be warranted to define the role of BIS for monitoring cerebral activity during CPR.

Abstract

Objective: To describe bispectral index (BIS) findings and compare them with cardiovascular and respiratory trends during cardiac arrest and successful CPR in a propofol-anesthetized calf.
Case Summary: A 3-month-old calf was anesthetized as part of a research project. A thromboxane analog drug (U46619) was administered IV to induce pulmonary hypertension. Within 10 minutes following U46619 administration, cardiac activity deteriorated, leading to asystole. At this point, BIS and suppression rate were 0 and 100, respectively. Anesthetic drug delivery was discontinued and external chest compressions were initiated. During CPR, end-tidal CO2 concentration decreased and BIS increased, but no spontaneous cardiac activity was noted, thus IV epinephrine was administered. Return of spontaneous circulation was achieved and systemic arterial hypertension developed, while BIS briefly decreased and then increased during the following 2 minutes. The calf's cardiopulmonary variables returned to physiological ranges within 10 minutes after the return of spontaneous circulation and remained stable.
Unique Information Provided: This is the first report in which BIS is documented together with standard monitoring techniques during cardiopulmonary arrest and resuscitation in a calf. BIS varied with cardiovascular performance, and may be indicative of cerebral blood flow in this context. Further research may be warranted to define the role of BIS for monitoring cerebral activity during CPR.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Equine Department
05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:2014
Deposited On:12 Dec 2014 07:54
Last Modified:05 Apr 2016 18:36
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:1476-4431
Publisher DOI:https://doi.org/10.1111/vec.12123
PubMed ID:24400814

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