Noninvasive cardiac output measurements are inaccurate in patients with severe aortic valve stenosis undergoing transcatheter aortic valve implantation

Autor: Takuma Maeda, Musashi Yahagi, Yuichi Yaguchi, Kyuma Omi, Koya Tabata
Rok vydání: 2022
Předmět:
Zdroj: Korean Journal of Anesthesiology. 75:151-159
ISSN: 2005-7563
2005-6419
DOI: 10.4097/kja.21324
Popis: Background Noninvasive cardiac output (CO) measurement using ClearSight™ (Edwards Lifesciences, Irvine, CA, US) eliminates the need for intra-arterial catheter insertion. However, the accuracy and reliability of this system have not been evaluated in severe aortic valve stenosis (AS). Methods Thirty patients who underwent elective transcatheter aortic valve implantation (TAVI) were prospectively enrolled in this study. CO was simultaneously measured twice before and twice after valve deployment, for a total of four times per patient, and compared between the ClearSight (COClearSight) system and CO from the pulmonary artery catheter (PAC) thermodilution (COTD) as reference. Bland-Altman analysis was used to compare the percentage error between the measurement methods. Results A total of 112 paired data points were obtained. The percentage error between COClearSight and COTD was 43.1%. The paired datasets were divided into the following groups according to the systemic vascular resistance index (SVRI): low (
Databáze: OpenAIRE