Validation of cardiac output assessed by pulmonary artery catheter against transthoracic echocardiography in patients after coronary bypass graft
Abstract：Objective To analyze the difference and agreement of cardiac output (CO) by pulmonary artery catheter and transthoracic echocardiography in patients after coronary bypass graft.Methods 256 patients after off-pump coronary bypass graft was recruited in this study.The heart functions and hemodynamic variations were measured by pulmonary artery catheter and transthoracic echocardiography at the same time from the same patients.According to the CO results,the difference and agreement of the both methods in measuring the heart functions and hemodynamic variations were evaluated by the logistic regression analysis.Results 484 measurement sets were obtained,the correlation index of both methods was 0.68.Bland-Altman plots showed good agreement:the bias was (1.82±1.27)L/min,95％CI was (-0.67-4.31).Logistic regression analysis showed that ejection faction,systemic vascular resistance,regional wall motion abnormalities and valvular regurgitation could result in the difference of the two methods.Conclnsion We should integrate the measurements from both of two methods when we assessed the heart functions and hemodynamic variations.
Keywords：Off-pump coronary bypass graftPulmonary artery catheterCardiac output measurementHemodynamics
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 409-413 )