Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized Dogs

In animals, invasive pulmonary artery thermodilution (PATD) is a gold standard for cardiac output (CO) monitoring, but it is impractical in clinical settings. This study evaluates the agreement between PATD and noninvasive electrical cardiometry (EC) for measuring CO and analyzes the other EC-derive...

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Main Authors: Vaidehi V. Paranjape, Natalia Henao-Guerrero, Giulio Menciotti, Siddharth Saksena, Manuela Agostinho
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/13/8/1420
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author Vaidehi V. Paranjape
Natalia Henao-Guerrero
Giulio Menciotti
Siddharth Saksena
Manuela Agostinho
author_facet Vaidehi V. Paranjape
Natalia Henao-Guerrero
Giulio Menciotti
Siddharth Saksena
Manuela Agostinho
author_sort Vaidehi V. Paranjape
collection DOAJ
description In animals, invasive pulmonary artery thermodilution (PATD) is a gold standard for cardiac output (CO) monitoring, but it is impractical in clinical settings. This study evaluates the agreement between PATD and noninvasive electrical cardiometry (EC) for measuring CO and analyzes the other EC-derived hemodynamic variables in six healthy anesthetized dogs subjected to four different hemodynamic events in a sequential order: (1) euvolemia (baseline); (2) hemorrhage (33% blood volume loss); (3) autologous blood transfusion; and (4) 20 mL/kg colloid bolus. The CO measurements obtained using PATD and EC are compared using Bland–Altman analysis, Lin’s concordance correlation (LCC), and polar plot analysis. Values of <i>p</i> < 0.05 are considered significant. The EC measurements consistently underpredict the CO values as compared with PATD, and the LCC is 0.65. The EC’s performance is better during hemorrhage, thus indicating its capability in detecting absolute hypovolemia in clinical settings. Even though the percentage error exhibited by EC is 49.4%, which is higher than the standard (<30%), EC displays a good trending ability. Additionally, the EC-derived variables display a significant correlation with the CO measured using PATD. Noninvasive EC may have a potential in monitoring trends in hemodynamics in clinical settings.
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spelling doaj.art-f1dd156470314a02a1c9893a1248987d2023-11-17T18:01:39ZengMDPI AGAnimals2076-26152023-04-01138142010.3390/ani13081420Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized DogsVaidehi V. Paranjape0Natalia Henao-Guerrero1Giulio Menciotti2Siddharth Saksena3Manuela Agostinho4Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 205 Duck Pond Dr, Blacksburg, VA 24061, USADepartment of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 205 Duck Pond Dr, Blacksburg, VA 24061, USADepartment of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 205 Duck Pond Dr, Blacksburg, VA 24061, USADepartment of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, 750 Drillfield Dr, Blacksburg, VA 24061, USADepartment of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 205 Duck Pond Dr, Blacksburg, VA 24061, USAIn animals, invasive pulmonary artery thermodilution (PATD) is a gold standard for cardiac output (CO) monitoring, but it is impractical in clinical settings. This study evaluates the agreement between PATD and noninvasive electrical cardiometry (EC) for measuring CO and analyzes the other EC-derived hemodynamic variables in six healthy anesthetized dogs subjected to four different hemodynamic events in a sequential order: (1) euvolemia (baseline); (2) hemorrhage (33% blood volume loss); (3) autologous blood transfusion; and (4) 20 mL/kg colloid bolus. The CO measurements obtained using PATD and EC are compared using Bland–Altman analysis, Lin’s concordance correlation (LCC), and polar plot analysis. Values of <i>p</i> < 0.05 are considered significant. The EC measurements consistently underpredict the CO values as compared with PATD, and the LCC is 0.65. The EC’s performance is better during hemorrhage, thus indicating its capability in detecting absolute hypovolemia in clinical settings. Even though the percentage error exhibited by EC is 49.4%, which is higher than the standard (<30%), EC displays a good trending ability. Additionally, the EC-derived variables display a significant correlation with the CO measured using PATD. Noninvasive EC may have a potential in monitoring trends in hemodynamics in clinical settings.https://www.mdpi.com/2076-2615/13/8/1420canineanesthesiahemodynamicsmonitoringhemorrhagehypovolemia
spellingShingle Vaidehi V. Paranjape
Natalia Henao-Guerrero
Giulio Menciotti
Siddharth Saksena
Manuela Agostinho
Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized Dogs
Animals
canine
anesthesia
hemodynamics
monitoring
hemorrhage
hypovolemia
title Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized Dogs
title_full Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized Dogs
title_fullStr Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized Dogs
title_full_unstemmed Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized Dogs
title_short Agreement between Electrical Cardiometry and Pulmonary Artery Thermodilution for Measuring Cardiac Output in Isoflurane-Anesthetized Dogs
title_sort agreement between electrical cardiometry and pulmonary artery thermodilution for measuring cardiac output in isoflurane anesthetized dogs
topic canine
anesthesia
hemodynamics
monitoring
hemorrhage
hypovolemia
url https://www.mdpi.com/2076-2615/13/8/1420
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