Yu-Lun Cheng1,2,3, Shih-Hsien Sung1,2,3, Hao-Min Cheng4,5,2, Jui-Tzu Huang2, Chao-Yu Guo3, Pai-Feng Hsu6,2,3, Wen-Chung Yu1,5,2, Chen-Huan Chen4,5,2,3. 1. Department of Medicine, Taipei Veterans General Hospital. 2. Department of Medicine, National Yang-Ming University. 3. Institute of Public Health, National Yang-Ming University. 4. Department of Medical Education, Taipei Veterans General Hospital. 5. Cardiovascular Research Center, National Yang-Ming University. 6. Healthcare and Management Center, Taipei Veterans General Hospital.
Abstract
BACKGROUND: The prognostic significance of the eGFR calculated by either the four-level Race Chronic Kidney Disease-Epidemiology Collaboration study equation (CKD-EPI4R) or the Chinese-modified Modification of Diet in Renal Disease equation (cMDRD) has not been compared in Asian populations with acute heart failure (AHF).Methods and Results: A total of 3,044 patients hospitalized for AHF were enrolled. The National Death Registry was linked to identify deaths within a 5-year follow-up. Net reclassification improvement (NRI) was calculated to compare the prognostic value of either eGFR equation. During a median follow-up of 23.3 months, 1,424 (47%) patients died. Both eGFRcMDRDand eGFRCKD-EPI4Rwere independently predictive of death in the total study population (hazard ratio and 95% confidence intervals per 1-SD: 0.76, 0.71-0.81 and 0.74, 0.70-0.79, respectively), and in the subgroups of either reduced (HFrEF) or preserved (HFpEF) ejection fraction, after accounting for important confounders. With reference to eGFRcMDRD, eGFRCKD-EPI4Rmay improve the NRI by 2.0% (0.8-3.2%) for the prediction of death. The prognostic value of the CKD stages categorized by eGFRCKD-EPI4Rsignificantly outperformed eGFRcMDRDwith a categorical NRI of 9.5% (4.7-14.3%) in the total study population, 11.5% in HFrEF, and 8.3% in HFpEF. CONCLUSIONS: Both eGFRcMDRDand eGFRCKD-EPI4Rwere independently associated with long-term survival in patients with AHF. However, the CKD stages derived from eGFRCKD-EPI4Rimproved the risk stratification of death, compared with eGFRcMDRD.
BACKGROUND: The prognostic significance of the eGFR calculated by either the four-level Race Chronic Kidney Disease-Epidemiology Collaboration study equation (CKD-EPI4R) or the Chinese-modified Modification of Diet in Renal Disease equation (cMDRD) has not been compared in Asian populations with acute heart failure (AHF).Methods and Results: A total of 3,044 patients hospitalized for AHF were enrolled. The National Death Registry was linked to identify deaths within a 5-year follow-up. Net reclassification improvement (NRI) was calculated to compare the prognostic value of either eGFR equation. During a median follow-up of 23.3 months, 1,424 (47%) patientsdied. Both eGFRcMDRDand eGFRCKD-EPI4Rwere independently predictive of death in the total study population (hazard ratio and 95% confidence intervals per 1-SD: 0.76, 0.71-0.81 and 0.74, 0.70-0.79, respectively), and in the subgroups of either reduced (HFrEF) or preserved (HFpEF) ejection fraction, after accounting for important confounders. With reference to eGFRcMDRD, eGFRCKD-EPI4Rmay improve the NRI by 2.0% (0.8-3.2%) for the prediction of death. The prognostic value of the CKD stages categorized by eGFRCKD-EPI4Rsignificantly outperformed eGFRcMDRDwith a categorical NRI of 9.5% (4.7-14.3%) in the total study population, 11.5% in HFrEF, and 8.3% in HFpEF. CONCLUSIONS: Both eGFRcMDRDand eGFRCKD-EPI4Rwere independently associated with long-term survival in patients with AHF. However, the CKD stages derived from eGFRCKD-EPI4Rimproved the risk stratification of death, compared with eGFRcMDRD.