Use of Physiologic and Arterial Blood Gas Variables to Predict Short-Term Survival in Horses with Large Colon Volvulus

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Abstract

Objective: To determine if preoperative physical examination and blood work values, intraoperative physiologic variables, and intraoperative treatments can be correlated with survival to anesthetic recovery and short-term survival to hospital discharge in horses that undergo exploratory celiotomy for large colon volvulus (LCV) with and without colon resection. Study Design: Retrospective case series. Animals: Horses (n = 156) undergoing exploratory celiotomy for correction of LCV ≥ 360ο. Methods: Medical records (January 2000-December 2009) of horses that had surgical correction of LCV ≥ 360ο were reviewed. Data collection included signalment, preoperative physical examination variables and hematologic values as well as intraoperative physiologic variables, intraoperative treatments, and arterial blood gas values. Risk factors for survival to anesthetic recovery and hospital discharge were determined using exact logistic regression. Results: High preoperative heart rate and packed cell volume were associated with not surviving to anesthetic recovery or hospital discharge. A low intraoperative total serum protein concentration was associated with not surviving to anesthetic recovery or to hospital discharge. Intraoperative tachycardia and hypercapnia were associated with not surviving to hospital discharge. Intraoperative hypotension was a negative predictor of survival to anesthetic recovery. There was no increase in death for horses in which a resection and anastomosis was performed compared with those having manual correction. Conclusions: Several hematologic and cardiorespiratory variables that are easily measured preoperatively and intraoperatively show good correlation with postanesthetic survival in horses undergoing surgical correction of LCV. These measurements might be useful for prognosticating survival in horses admitted for correction of LCV ≥ 360ο.

Original languageEnglish (US)
Pages (from-to)107-113
Number of pages7
JournalVeterinary Surgery
Volume42
Issue number1
DOIs
StatePublished - Jan 2013

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volvulus
Intestinal Volvulus
blood gases
Horses
colon
Colon
anesthetics
Gases
Anesthetics
horses
resection
clinical examination
Physical Examination
hypercapnia
Hypercapnia
hypotension
Cell Size
Tachycardia
Hypotension
blood proteins

ASJC Scopus subject areas

  • veterinary(all)

Cite this

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title = "Use of Physiologic and Arterial Blood Gas Variables to Predict Short-Term Survival in Horses with Large Colon Volvulus",
abstract = "Objective: To determine if preoperative physical examination and blood work values, intraoperative physiologic variables, and intraoperative treatments can be correlated with survival to anesthetic recovery and short-term survival to hospital discharge in horses that undergo exploratory celiotomy for large colon volvulus (LCV) with and without colon resection. Study Design: Retrospective case series. Animals: Horses (n = 156) undergoing exploratory celiotomy for correction of LCV ≥ 360ο. Methods: Medical records (January 2000-December 2009) of horses that had surgical correction of LCV ≥ 360ο were reviewed. Data collection included signalment, preoperative physical examination variables and hematologic values as well as intraoperative physiologic variables, intraoperative treatments, and arterial blood gas values. Risk factors for survival to anesthetic recovery and hospital discharge were determined using exact logistic regression. Results: High preoperative heart rate and packed cell volume were associated with not surviving to anesthetic recovery or hospital discharge. A low intraoperative total serum protein concentration was associated with not surviving to anesthetic recovery or to hospital discharge. Intraoperative tachycardia and hypercapnia were associated with not surviving to hospital discharge. Intraoperative hypotension was a negative predictor of survival to anesthetic recovery. There was no increase in death for horses in which a resection and anastomosis was performed compared with those having manual correction. Conclusions: Several hematologic and cardiorespiratory variables that are easily measured preoperatively and intraoperatively show good correlation with postanesthetic survival in horses undergoing surgical correction of LCV. These measurements might be useful for prognosticating survival in horses admitted for correction of LCV ≥ 360ο.",
author = "Kelleher, {Maureen E.} and Brosnan, {Robert J} and Kass, {Philip H} and {Le jeune}, {Sonia S}",
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AU - Kelleher, Maureen E.

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AU - Kass, Philip H

AU - Le jeune, Sonia S

PY - 2013/1

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N2 - Objective: To determine if preoperative physical examination and blood work values, intraoperative physiologic variables, and intraoperative treatments can be correlated with survival to anesthetic recovery and short-term survival to hospital discharge in horses that undergo exploratory celiotomy for large colon volvulus (LCV) with and without colon resection. Study Design: Retrospective case series. Animals: Horses (n = 156) undergoing exploratory celiotomy for correction of LCV ≥ 360ο. Methods: Medical records (January 2000-December 2009) of horses that had surgical correction of LCV ≥ 360ο were reviewed. Data collection included signalment, preoperative physical examination variables and hematologic values as well as intraoperative physiologic variables, intraoperative treatments, and arterial blood gas values. Risk factors for survival to anesthetic recovery and hospital discharge were determined using exact logistic regression. Results: High preoperative heart rate and packed cell volume were associated with not surviving to anesthetic recovery or hospital discharge. A low intraoperative total serum protein concentration was associated with not surviving to anesthetic recovery or to hospital discharge. Intraoperative tachycardia and hypercapnia were associated with not surviving to hospital discharge. Intraoperative hypotension was a negative predictor of survival to anesthetic recovery. There was no increase in death for horses in which a resection and anastomosis was performed compared with those having manual correction. Conclusions: Several hematologic and cardiorespiratory variables that are easily measured preoperatively and intraoperatively show good correlation with postanesthetic survival in horses undergoing surgical correction of LCV. These measurements might be useful for prognosticating survival in horses admitted for correction of LCV ≥ 360ο.

AB - Objective: To determine if preoperative physical examination and blood work values, intraoperative physiologic variables, and intraoperative treatments can be correlated with survival to anesthetic recovery and short-term survival to hospital discharge in horses that undergo exploratory celiotomy for large colon volvulus (LCV) with and without colon resection. Study Design: Retrospective case series. Animals: Horses (n = 156) undergoing exploratory celiotomy for correction of LCV ≥ 360ο. Methods: Medical records (January 2000-December 2009) of horses that had surgical correction of LCV ≥ 360ο were reviewed. Data collection included signalment, preoperative physical examination variables and hematologic values as well as intraoperative physiologic variables, intraoperative treatments, and arterial blood gas values. Risk factors for survival to anesthetic recovery and hospital discharge were determined using exact logistic regression. Results: High preoperative heart rate and packed cell volume were associated with not surviving to anesthetic recovery or hospital discharge. A low intraoperative total serum protein concentration was associated with not surviving to anesthetic recovery or to hospital discharge. Intraoperative tachycardia and hypercapnia were associated with not surviving to hospital discharge. Intraoperative hypotension was a negative predictor of survival to anesthetic recovery. There was no increase in death for horses in which a resection and anastomosis was performed compared with those having manual correction. Conclusions: Several hematologic and cardiorespiratory variables that are easily measured preoperatively and intraoperatively show good correlation with postanesthetic survival in horses undergoing surgical correction of LCV. These measurements might be useful for prognosticating survival in horses admitted for correction of LCV ≥ 360ο.

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