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Association of peripartum troponin I levels with left ventricular relaxation in women with hypertensive disorders of pregnancy

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/73323

Title: Association of peripartum troponin I levels with left ventricular relaxation in women with hypertensive disorders of pregnancy
Authors: Umazume, Takeshi Browse this author →KAKEN DB
Yamada, Satoshi Browse this author →KAKEN DB
Yamada, Takahiro Browse this author →KAKEN DB
Ishikawa, Satoshi Browse this author
Furuta, Itsuko Browse this author →KAKEN DB
Iwano, Hiroyuki Browse this author →KAKEN DB
Murai, Daisuke Browse this author
Hayashi, Taichi Browse this author
Okada, Kazunori Browse this author
Morikawa, Mamoru Browse this author →KAKEN DB
Tsutsui, Hiroyuki Browse this author →KAKEN DB
Minakami, Hisanori Browse this author →KAKEN DB
Issue Date: 12-Sep-2018
Publisher: BMJ Publishing Group
Journal Title: Open heart
Volume: 5
Issue: 2
Start Page: e000829
Publisher DOI: 10.1136/openhrt-2018-000829
Abstract: Objective Women with hypertensive disorders of pregnancy (HDP) show elevated risk of heart failure despite decreased circulating plasma volume compared with those with normotensive control pregnancies (NCP). This study was performed to better characterise the heart in women with HDP and determine whether high-sensitivity troponin I (hs-TnI) around childbirth predicts reduced left ventricular (LV) relaxation at 1 month postpartum. Methods Echocardiography was performed longitudinally during the first, second and third trimesters and immediately postpartum within 1 week and 1 month postpartum in 24 women with HDP, with simultaneous determination of blood variables in comparison with 51 women with NCP. Results Compared with NCP, HDP showed greater antepartum left atrial (LA) volume, LV mass and inferior vena cava (IVC) diameter, higher peripartum brain natriuretic peptide/N-terminal pro-B-type natriuretic peptide and hs-TnI with the highest value immediately postpartum, and lower early diastolic mitral annular velocity (e') during pregnancy/postpartum. In analyses of data on HDP and NCP, hs-TnI at the third trimester as well as that immediately postpartum was negatively correlated with later e' at 1 month postpartum. The areas under the receiver operating characteristic curves were 0.82 and 0.81 for hs-TnI at the third trimester and immediately postpartum, respectively, in the prediction of reduced LV relaxation at 1 month postpartum. Conclusion Reduced LV diastolic function and decreased splanchnic blood reservoir may contribute to the increased third trimester IVC diameter and LA volume in women with HOP. The rise in hs-TnI around childbirth was associated with poor LV relaxation ability at 1 month postpartum.
Rights: http://creativecommons.org/licenses/by-nc/4.0
Type: article
URI: http://hdl.handle.net/2115/73323
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 馬詰 武

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