Marco Metra1, Gad Cotter2, Stefanie Senger3, Christopher Edwards3, John G Cleland4, Piotr Ponikowski5, Guillermo C Cursack3, Olga Milo3, John R Teerlink6, Michael M Givertz7, Christopher M O'Connor8, Howard C Dittrich9, Daniel M Bloomfield10, Adriaan A Voors11, Beth A Davison3. 1. Cardiology, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy (M.M.). 2. Momentum Research Inc, Durham, NC (G.C., S.S., C.E., G.C.C., O.M., B.A.D.). gadcotter@momentum-research.com. 3. Momentum Research Inc, Durham, NC (G.C., S.S., C.E., G.C.C., O.M., B.A.D.). 4. Department of Cardiology, University of Hull, United Kingdom (J.G.C.). 5. Department of Cardiology, Medical University, Clinical Military Hospital, Wroclaw, Poland (P.P.). 6. University of California at San Francisco and San Francisco Veterans Affairs Medical Center (J.R.T.). 7. Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (M.M.G.). 8. Duke University Medical Center, Durham, NC (C.M.O.). 9. Independent Researcher (H.D.). 10. Merck and Co, Inc, Rahway, NJ (D.M.B.). 11. University Medical Center, Department of Cardiology and Thorax Surgery, University of Groningen, The Netherlands (A.A.V.).
Abstract
BACKGROUND: The importance of a serum creatinine increase, traditionally considered worsening renal function (WRF), during admission for acute heart failure has been recently debated, with data suggesting an interaction between congestion and creatinine changes. METHODS AND RESULTS: In post hoc analyses, we analyzed the association of WRF with length of hospital stay, 30-day death or cardiovascular/renal readmission and 90-day mortality in the PROTECT study (Placebo-Controlled Randomized Study of the Selective A1 Adenosine Receptor Antagonist Rolofylline for Patients Hospitalized With Acute Decompensated Heart Failure and Volume Overload to Assess Treatment Effect on Congestion and Renal Function). Daily creatinine changes from baseline were categorized as WRF (an increase of 0.3 mg/dL or more) or not. Daily congestion scores were computed by summing scores for orthopnea, edema, and jugular venous pressure. Of the 2033 total patients randomized, 1537 patients had both available at study day 14. Length of hospital stay was longer and 30-day cardiovascular/renal readmission or death more common in patients with WRF. However, these were driven by significant associations in patients with concomitant congestion at the time of assessment of renal function. The mean difference in length of hospital stay because of WRF was 3.51 (95% confidence interval, 1.29-5.73) more days (P=0.0019), and the hazard ratio for WRF on 30-day death or heart failure hospitalization was 1.49 (95% confidence interval, 1.06-2.09) times higher (P=0.0205), in significantly congested than nonsignificantly congested patients. A similar trend was observed with 90-day mortality although not statistically significant. CONCLUSIONS: In patients admitted for acute heart failure, WRF defined as a creatinine increase of ≥0.3 mg/dL was associated with longer length of hospital stay, and worse 30- and 90-day outcomes. However, effects were largely driven by patients who had residual congestion at the time of renal function assessment. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifiers: NCT00328692 and NCT00354458.
RCT Entities:
BACKGROUND: The importance of a serum creatinine increase, traditionally considered worsening renal function (WRF), during admission for acute heart failure has been recently debated, with data suggesting an interaction between congestion and creatinine changes. METHODS AND RESULTS: In post hoc analyses, we analyzed the association of WRF with length of hospital stay, 30-day death or cardiovascular/renal readmission and 90-day mortality in the PROTECT study (Placebo-Controlled Randomized Study of the Selective A1 Adenosine Receptor Antagonist Rolofylline for Patients Hospitalized With Acute Decompensated Heart Failure and Volume Overload to Assess Treatment Effect on Congestion and Renal Function). Daily creatinine changes from baseline were categorized as WRF (an increase of 0.3 mg/dL or more) or not. Daily congestion scores were computed by summing scores for orthopnea, edema, and jugular venous pressure. Of the 2033 total patients randomized, 1537 patients had both available at study day 14. Length of hospital stay was longer and 30-day cardiovascular/renal readmission or death more common in patients with WRF. However, these were driven by significant associations in patients with concomitant congestion at the time of assessment of renal function. The mean difference in length of hospital stay because of WRF was 3.51 (95% confidence interval, 1.29-5.73) more days (P=0.0019), and the hazard ratio for WRF on 30-day death or heart failure hospitalization was 1.49 (95% confidence interval, 1.06-2.09) times higher (P=0.0205), in significantly congested than nonsignificantly congested patients. A similar trend was observed with 90-day mortality although not statistically significant. CONCLUSIONS: In patients admitted for acute heart failure, WRF defined as a creatinine increase of ≥0.3 mg/dL was associated with longer length of hospital stay, and worse 30- and 90-day outcomes. However, effects were largely driven by patients who had residual congestion at the time of renal function assessment. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifiers: NCT00328692 and NCT00354458.
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