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More recently developed two-dimensional speckle-tracking echocardiography (2D-STE) can assess regional deformation of the myocardium and is useful for detecting left ventricular dysfunction. However, its usefulness to assess right ventricular (RV) dysfunction is not clear. Therefore, the aim of this study was to investigate the ability of peak systolic strain (PSS) and post-systolic strain index (PSI) at the RV free wall determined by 2D-STE to detect PH. Main methods Thirty-six images (27 images from PH patients, nine from patients with connective tissue disease without PH) obtained by 2D-STE were analysed. We investigated the relationship between RV hemodynamics measured by right heart catheterization and PSS, PSI and other echocardiographic parameters reflecting RV overload including RV end-diastolic diameter (RVDd) and tricuspid valve regurgitant pressure gradient (TRPG). Key findings PSS, PSI, RVDd and TRPG were all correlated with mean pulmonary arterial pressure (MPAP) and pulmonary vascular resistance (PVR). Furthermore, when PSS and MPAP were measured twice, the change in PSS was correlated with the change in MPAP (r = 0.633, p = 0.037). Multivariate logistic regression analysis identified PSS as the only independent factor associated with MPAP ? 35 mm Hg [odds ratio (OR), 1.616; 95% confidence interval (CI) 1.017-2.567; p = 0.042] and PVR ? 400 dyn・s・cm- 5(OR, 1.804; 95% CI 1.131-2.877; p = 0.013). Furthermore, the optimal PSS cut-off value to detect an elevated MPAP and PVR was - 20.75%, based on receiver operating characteristic curve analysis. 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Longitudinal strain of right ventricular free wall by 2-dimensional speckle-tracking echocardiography is useful for detecting pulmonary hypertension
http://hdl.handle.net/10069/34776
http://hdl.handle.net/10069/3477637b539fa-c102-447d-9d70-40ae0f4f93d0
名前 / ファイル | ライセンス | アクション |
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LifSci111_12.pdf (1.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-10-14 | |||||
タイトル | ||||||
タイトル | Longitudinal strain of right ventricular free wall by 2-dimensional speckle-tracking echocardiography is useful for detecting pulmonary hypertension | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Echocardiography | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Peak systolic strain Post systolic index Tricuspid valve regurgitant pressure gradient | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Pulmonary hypertension | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Speckle tracking | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Ikeda, Satoshi
× Ikeda, Satoshi× Tsuneto, Akira× Kojima, Sanae× Koga, Seiji× Nakata, Tomoo× Yoshida, Takeo× Eto, Miyuki× Minami, Takako× Yanagihara, Katsunori× Maemura, Koji |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Aims Echocardiography is widely used for screening pulmonary hypertension (PH). More recently developed two-dimensional speckle-tracking echocardiography (2D-STE) can assess regional deformation of the myocardium and is useful for detecting left ventricular dysfunction. However, its usefulness to assess right ventricular (RV) dysfunction is not clear. Therefore, the aim of this study was to investigate the ability of peak systolic strain (PSS) and post-systolic strain index (PSI) at the RV free wall determined by 2D-STE to detect PH. Main methods Thirty-six images (27 images from PH patients, nine from patients with connective tissue disease without PH) obtained by 2D-STE were analysed. We investigated the relationship between RV hemodynamics measured by right heart catheterization and PSS, PSI and other echocardiographic parameters reflecting RV overload including RV end-diastolic diameter (RVDd) and tricuspid valve regurgitant pressure gradient (TRPG). Key findings PSS, PSI, RVDd and TRPG were all correlated with mean pulmonary arterial pressure (MPAP) and pulmonary vascular resistance (PVR). Furthermore, when PSS and MPAP were measured twice, the change in PSS was correlated with the change in MPAP (r = 0.633, p = 0.037). Multivariate logistic regression analysis identified PSS as the only independent factor associated with MPAP ? 35 mm Hg [odds ratio (OR), 1.616; 95% confidence interval (CI) 1.017-2.567; p = 0.042] and PVR ? 400 dyn・s・cm- 5(OR, 1.804; 95% CI 1.131-2.877; p = 0.013). Furthermore, the optimal PSS cut-off value to detect an elevated MPAP and PVR was - 20.75%, based on receiver operating characteristic curve analysis. Significance PSS of the RV free wall might serve as a useful non-invasive indicator of PH. | |||||
書誌情報 |
Life Sciences 巻 111, 号 1-2, p. 12-17, 発行日 2014-08-28 |
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出版者 | ||||||
出版者 | Elsevier Inc. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00243205 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.lfs.2014.06.024 | |||||
権利 | ||||||
権利情報 | c 2014 Elsevier Inc. All rights reserved. | |||||
権利 | ||||||
権利情報 | NOTICE: this is the author’s version of a work that was accepted for publication in Life Sciences>. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Life Sciences, 111, 1, (2014) | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Life Sciences, 111(1-2), pp.12-17; 2014 |