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학술저널
저자정보
Omar Prieto (Hospital of the Government of the City of Buenos A) Tomas Francisco Cianciulli (Hospital of the Government of the City of Buenos Aires Dr. Cosme Argerich) Alejandro Stewart-Harris (Hospital of the Government of the City of Buenos A) Andrea Rodriguez (Hospital of the Government of the City of Buenos A) Maria Cristina Saccheri (Hospital of the Government of the City of Buenos Aires Dr. Cosme Argerich) Jorge Alberto Lax (Hospital of the Government of the City of Buenos Aires Dr. Cosme Argerich) Lucia Raquel Kazelian (Hospital of the Government of the City of Buenos A) Laura Vanina Argento (Hospital of the Government of the City of Buenos A) Gerardo Manuel Marambio (Hospital of the Government of the City of Buenos A) Juan Alberto Gagliardi (Hospital of the Government of the City of Buenos Aires Dr. Cosme Argerich)
저널정보
한국심초음파학회 Journal of Cardiovascular Imaging Journal of Cardiovascular Imaging 제29권 제3호
발행연도
2021.1
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236 - 251 (16page)

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BACKGROUND: Right ventricular (RV) systolic dysfunction is a strong predictor of mortality in pulmonary hypertension (PH). The goal of this study was to investigate whether right atrium (RA) and RV myocardial strain related to PH using speckle tracking echocardiography provide a superior estimation of RV systolic function than 2-dimensional (2D)-echo. METHODS: This cross-sectional study analyzed 22 patients with a diagnosis of PH stratified by right heart catheterization, and they were compared to a control group of 22 age- and sex-matched healthy subjects. RESULTS: Global longitudinal peak systolic strain measured in the RV free wall from the apical 4 chamber view was ?15% vs. ?14.5% when measured from the subcostal view (p = 0.99). Mean longitudinal strain during reservoir phase, and longitudinal strain rate during atrial reservoir and passive conduit function was significantly impaired measured in the right atrial free wall in patients with PH. CONCLUSIONS: This study showed impaired LV contractility in patients with PH assessed by speckle tracking strain. RV free wall longitudinal strain does not correlate with any of the measurements of RV systolic function obtained by 2D echocardiography. A major strength of RV longitudinal strain is its ability to assess the RV function without the limitations of 2D parameters. The subcostal RV strain is a feasible and accurate alternative to conventional RV strain from the apical view in patients with poor acoustic apical 4-chamber windows. The RA strain and strain rates values may be a valuable additive to assess right-sided heart function.

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