Abstract:
BACKGROUND:Increased left ventricular (LV) myocardial stiffness may be associated with impaired LV hemodynamics and incident heart failure (HF). However, an indicator that estimates LV myocardial stiffness easily and non-invasively is lacking. The purpose of this study was to determine whether diastolic wall strain (DWS), an echocardiographic estimator of LV myocardial stiffness, is associated with incident HF in a middle-aged community-based cohort of African Americans. METHODS AND RESULTS:We investigated associations between DWS and incident HF among 1528 African Americans (mean age 58.5 years, 66% women) with preserved LV ejection fraction (EF ≥50%) and without a history of cardiovascular disease in the Atherosclerosis Risk in Communities Study. Participants with the smallest DWS quintile (more LV myocardial stiffness) had a higher LV mass index, higher relative wall thickness, and lower arterial compliance than those in the larger four DWS quintiles (p<0.01 for all). Over a mean follow-up of 15.6 years, there were 251 incident HF events (incidence rate: 10.9 per 1000 person-years). After adjustment for traditional risk factors and incident coronary artery disease, both continuous and categorical DWS were independently associated with incident HF (HR 1.21, 95%CI 1.04-1.41 for 0.1 decrease in continuous DWS, p=0.014, HR 1.40, 95%CI 1.05-1.87 for the smallest DWS quintile vs other combined quintiles, p=0.022). CONCLUSIONS:DWS was independently associated with an increased risk of incident HF in a community-based cohort of African Americans. DWS could be used as a qualitative estimator of LV myocardial stiffness.
journal_name
J Cardioljournal_title
Journal of cardiologyauthors
Kamimura D,Suzuki T,Hall ME,Wang W,Winniford MD,Shah AM,Rodriguez CJ,Butler KR,Mosley THdoi
10.1016/j.jjcc.2017.11.004subject
Has Abstractpub_date
2018-05-01 00:00:00pages
477-483issue
5eissn
0914-5087issn
1876-4738pii
S0914-5087(17)30325-8journal_volume
71pub_type
杂志文章abstract::To determine whether patients with syndrome X suffer from myocardial ischemia, coronary sinus oxygen saturation was continuously measured during pacing loading in 31 patients. Subjects were categorized by groups as syndrome X (11 patients), effort angina (14), and old myocardial infarction and valvular heart disease (...
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更新日期:1993-01-01 00:00:00
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doi:
更新日期:1995-03-01 00:00:00
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更新日期:1989-12-01 00:00:00
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doi:10.1016/j.jjcc.2013.10.008
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pub_type: 杂志文章
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pub_type: 杂志文章,多中心研究
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更新日期:2019-08-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.jjcc.2016.04.006
更新日期:2017-03-01 00:00:00
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doi:
更新日期:2007-11-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章,多中心研究
doi:10.1016/j.jjcc.2012.03.001
更新日期:2012-08-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2001-08-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:2003-10-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 临床试验,杂志文章
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更新日期:2015-08-01 00:00:00
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