William C Culp1, Timothy R Ball, Christopher J Burnett. 1. Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, Scott & White Hospital, The Texas A&M University System Health Science Center College of Medicine, Temple, TX 76508, USA. wculp@swmail.sw.org
Abstract
BACKGROUND: In this pilot study, we attempted to validate three-dimensional transesophageal echocardiography (3DTEE) cardiac output and assess its feasibility intraoperatively. METHODS: Twenty patients undergoing cardiac surgery underwent simultaneous cardiac output determinations during the clinically stable prebypass period by 3DTEE and thermodilution. RESULTS: The correlation coefficient between cardiac output measured by the two methods was 0.86. The 3DTEE mean bias was 0.27 L/min, limits of agreement -1.64 to 2.17 L/min (approximately +/-35%). Three-dimensional data acquisition averaged 43 s; postprocessing took 7 min. CONCLUSIONS: Three-dimensional TEE can measure cardiac output and is feasible perioperatively. Measurements have good correlation with thermodilution, though with a significant bias and wide limits of agreement.
BACKGROUND: In this pilot study, we attempted to validate three-dimensional transesophageal echocardiography (3DTEE) cardiac output and assess its feasibility intraoperatively. METHODS: Twenty patients undergoing cardiac surgery underwent simultaneous cardiac output determinations during the clinically stable prebypass period by 3DTEE and thermodilution. RESULTS: The correlation coefficient between cardiac output measured by the two methods was 0.86. The 3DTEE mean bias was 0.27 L/min, limits of agreement -1.64 to 2.17 L/min (approximately +/-35%). Three-dimensional data acquisition averaged 43 s; postprocessing took 7 min. CONCLUSIONS: Three-dimensional TEE can measure cardiac output and is feasible perioperatively. Measurements have good correlation with thermodilution, though with a significant bias and wide limits of agreement.
Authors: Lars Grønlykke; André Korshin; Frederik Holmgaard; Sven Morten Kjøller; Finn Gustafsson; Jens Chr Nilsson; Hanne Berg Ravn Journal: Int J Cardiovasc Imaging Date: 2019-05-02 Impact factor: 2.357