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Impact of severe tricuspid regurgitation on accuracy of systolic pulmonary arterial pressure measured by Doppler echocardiography: Analysis in an unselected patient population
Author(s) -
Fei Beini,
Fan Ting,
Zhao Ling,
Pei Xiaoli,
Shu Xianhong,
Fang Xiaoyan,
Cheng Leilei
Publication year - 2017
Publication title -
echocardiography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 62
eISSN - 1540-8175
pISSN - 0742-2822
DOI - 10.1111/echo.13555
Subject(s) - medicine , cardiology , regurgitation (circulation) , pulmonary hypertension , doppler echocardiography , pulmonary arterial pressure , pulmonary artery , blood pressure , population , hemodynamics , diastole , environmental health
Pulmonary arterial pressure is an important index in cardiovascular disorders, especially for pulmonary hypertension ( PH ). Doppler echocardiography ( DE ) is widely used as a noninvasive method to assess pulmonary arterial pressure. However, recent studies have found several hemodynamic factors that affect its accuracy in estimating systolic pulmonary arterial pressure ( sPAP ). But the effect of tricuspid regurgitation ( TR ) has not been investigated. Therefore, our study is aimed to determine whether the severity of TR will affect the accuracy of sPAP measured by DE in an unselected patient population. We retrospectively studied 177 patients who underwent DE and right heart catheterization ( RHC ) examinations. Patients were categorized into 3 groups according to the severity of TR (mild, moderate, and severe). The discrepancy in sPAP measured by DE and RHC was calculated and compared in each group. Determinants of discordant results between two methods were also evaluated. Age, gender, interval between DE and RHC , sequence of DE and RHC were similar among groups (all P >.05). Differences in sPAP , RAP , and tricuspid regurgitation pressure gradient ( TR ‐ PG ) were similar in group 1 and 2 (all P >.05), while all significantly higher in group 3 (all P <.05). The difference in sPAP between DE and RHC was affected independently by severe TR and severe PH (both P <.05). Severe TR and severe PH affect the accuracy of sPAP measured by DE . Modification of echocardiographic sPAP measurements by taking into consideration of these factors may lead to reduced systemic errors.