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19.03.2020 | Original Article

Prognostic impact of moderate mitral regurgitation on hospitalized heart failure patients with preserved ejection fraction: A report from the JASPER registry

Zeitschrift:
Heart and Vessels
Autoren:
Masayoshi Oikawa, Akiomi Yoshihisa, Yu Sato, Toshiyuki Nagai, Tsutomu Yoshikawa, Yoshihiko Saito, Kazuhiro Yamamoto, Yasuchika Takeishi, Toshihisa Anzai
Wichtige Hinweise

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Abstract

A growing body of evidence suggests that mitral regurgitation (MR) is associated with higher mortality in heart failure patients with reduced ejection fraction. However, prognostic impact of MR on heart failure patients with preserved ejection fraction (HFpEF) has not been fully examined. The Japanese Heart Failure Syndrome with Preserved Ejection Fraction (JASPER) registry is a nationwide, observational, prospective registration of consecutive Japanese hospitalized HFpEF patients with LVEF ≥ 50%. Severe valvular heart disease was excluded from this cohort. We divided the consecutive 341 patients into two groups based on the severity of MR at discharge: no or mild MR group (n = 317) and moderate MR group (n = 24). Compared with no or mild MR group, moderate MR group showed larger left ventricular end-diastolic diameter (52 [48–59] vs. 46 [42–50] mm, P < 0.001), left ventricular systolic diameter (35 [30–37] vs. 29 [26–34] mm, P = 0.006), left atrial diameter (49 [46–56] vs. 45 [40–50] mm, P < 0.001), and higher tricuspid regurgitation peak gradient (33 [25–40] vs. 27 [21–33] mmHg, P = 0.012). In contrast, levels of plasma B-type natriuretic peptide and left ventricular ejection fraction were comparable between the two groups. In the follow-up period (median 738 days), there were 57 all-cause deaths. In the Kaplan–Meier analysis, all-cause mortality was higher in moderate MR group than in no or mild MR group (log-rank P = 0.023). In the Cox proportional hazard analysis, moderate MR at discharge was a predictor of all-cause mortality (hazard ratio 2.256, 95% confidence interval 1.035–4.917, P = 0.041). Moderate MR at discharge is associated with adverse prognosis in hospitalized patients with HFpEF.

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