Morbidity and prognosis of acute decompensated heart failure patients with preserved ejection fraction accompanied by myocardial injury

Objective To investigate the prognostic value of cardiactroponin I in acute decompensated heart failure( ADHF ) patients with preserved ejection fraction.Methods We included 326 consecutive ADHF patientswith preserved ejection fraction from January 2016 to January2017. Patients were divided into two groups basedon cardiac troponin I levels. Group A included patientswith elevated troponin I level (cTnI≥0. 04 ng /ml) andgroup B included patients with normal troponin I level(cTnI < 0. 04 ng /ml). BNP levels,length of hospitalstay,readmission rate,30-day and 180-day all-causemortality were compared between the two groups. Results(1) There were 185 patients ( 56. 7%) in thegroup A and 141 patients in the group B. (2) Male ratio(44. 9% vs 32. 6%,P < 0. 05),serum creatinine levelsat admission ([120. 6 ± 48. 2]μmmol /L vs [107. 4 ±51. 2]μmmol /L,P < 0. 05),BNP levels([846 ± 575]pg /ml vs [423 ± 387] pg /ml,P < 0. 05),30-day and180-day all-cause mortality (5. 4% vs 0. 7%,9. 2% vs2. 8%,P < 0. 05) were all significantly higher in groupA than in group B.