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Region Hovedstaden - en del af Københavns Universitetshospital
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Ratio of transmitral early filling velocity to early diastolic strain rate predicts long-term risk of cardiovascular morbidity and mortality in the general population

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Aims: It has previously been demonstrated that the ratio of early mitral inflow velocity to global diastolic strain rate (E/e'sr) is a significant predictor of cardiac events in specific patient populations. The utility of this measurement to predict cardiovascular events in a general population has not been evaluated. Methods and results: A total of 1238 participants in a general population study underwent a health examination including echocardiography where global longitudinal strain (GLS) and E/e'sr were determined. The primary endpoint was the composite of incident heart failure (HF), acute myocardial infarction (AMI) or cardiovascular death (CVD). During follow-up (median 11 years), 140 (11.3%) participants reached the composite endpoint. E/e'sr was associated with adverse outcome [HR 1.17 95% CI (1.13-1.21); P < 0.001, per 10 cm increase]. After multivariable adjustment for echocardiographic and clinical parameters, E/e'sr remained an independent predictor of the composite endpoint [HR 1.08, 95% CI (1.02-1.13); P = 0.003] as opposed to E/e' [HR 1.03, 95% CI (0.99-1.06); P = 0.11 per 1 unit increase]. Global longitudinal strain modified the relationship between E/e'sr and outcome (P for interaction = 0.015). E/e'sr was a stronger predictor in participants with good systolic function as determined by GLS (GLS > 18%) after multivariable adjustment, when compared to participants with reduced systolic function (GLS < 18%) [HR 1.28 95% CI (1.06-1.54); P = 0.011, and HR 1.08 95% CI (1.02-1.14); P = 0.012, respectively). E/e'sr provided incremental information [Harrell's C-index: 0.839 (0.81-0.87) vs. 0.844 (0.82-0.87); P = 0.045] beyond the SCORE risk chart. Conclusion: In the general population, E/e'sr provides independent and incremental prognostic information regarding cardiovascular morbidity and mortality. Additionally, E/e'sr is a stronger predictor of cardiac events than E/e'.

OriginalsprogEngelsk
TidsskriftEuropean Heart Journal
Vol/bind40
Udgave nummer6
Sider (fra-til)518-525
Antal sider8
ISSN0195-668X
DOI
StatusUdgivet - 7 feb. 2019

ID: 56381101