PMID- 18439171 OWN - NLM STAT- MEDLINE DCOM- 20080528 LR - 20191210 IS - 1540-8159 (Electronic) IS - 0147-8389 (Linking) VI - 31 IP - 5 DP - 2008 May TI - Elevated serum creatinine at baseline predicts poor outcome in patients receiving cardiac resynchronization therapy. PG - 575-9 LID - 10.1111/j.1540-8159.2008.01043.x [doi] AB - BACKGROUND: Renal insufficiency is recognized as a predictor of mortality and poor outcome in heart failure patients. We sought to study the impact of baseline serum creatinine on subsequent outcome in cardiac resynchronization therapy (CRT) recipients. METHODS: We retrospectively reviewed hospital records of all CRT recipients at Pittsburgh Veterans Affairs (VA) Healthcare System (2003-2005) and University of Pittsburgh Medical Center (2004). We recorded clinical characteristics at the time of implantation including demographics, New York Heart Association (NYHA) functional class, ejection fraction, QRS duration, cardiomyopathy etiology, medical history, medication use, and serum creatinine. Mortality alone and mortality combined with heart failure hospitalization were the study endpoints. RESULTS: Out of the 330 patients studied, a total of 66 (20.0%) patients died over a mean follow-up duration of 19.7 +/- 9.0 months (range 1-44). The cohort was studied by three creatinine tertiles (0.6-1.0, 1.1-1.3, 1.4-3.0 mg/dL). Both study endpoints were observed more frequently in patients in the highest creatinine tertile compared to others (28.7% vs 14.0%, P = 0.008 for death and 41.6% vs 21.5%, P = 0.001 for the combined endpoint). High creatinine remained an independent predictor of mortality (hazard ratio [HR] 1.89, 95% confidence interval [CI] 1.06-3.39, P = 0.032) and the combined endpoint (HR 1.94, 95% CI 1.20-3.13, P = 0.007) in multivariate adjusted models. Studied as a continuous variable, increase in creatinine level by 0.1 mg/dL was associated with an 11% increase in mortality risk and a 7% increase in the combined endpoint. CONCLUSION: In an unselected cohort of CRT recipients, the baseline creatinine was found to predict worse survival and poor outcome over a modest follow-up duration. FAU - Shalaby, Alaa AU - Shalaby A AD - Division of Cardiology, VA Pittsburgh Healthcare System, Pittsburgh, PA 15240, USA. alaa.shalaby@med.va.gov FAU - El-Saed, Aiman AU - El-Saed A FAU - Voigt, Andrew AU - Voigt A FAU - Albany, Constantine AU - Albany C FAU - Saba, Samir AU - Saba S LA - eng PT - Journal Article PL - United States TA - Pacing Clin Electrophysiol JT - Pacing and clinical electrophysiology : PACE JID - 7803944 RN - 0 (Biomarkers) RN - AYI8EX34EU (Creatinine) SB - IM MH - Aged MH - Biomarkers/blood MH - Cardiac Pacing, Artificial/*mortality MH - Cohort Studies MH - Creatinine/*blood MH - Heart Failure/blood/mortality/prevention & control MH - Humans MH - Incidence MH - Male MH - Outcome Assessment, Health Care/*methods MH - Pacemaker, Artificial/statistics & numerical data MH - Pennsylvania/epidemiology MH - Prognosis MH - Renal Insufficiency/*blood/diagnosis/*mortality MH - Reproducibility of Results MH - Risk Assessment/*methods MH - Risk Factors MH - Sensitivity and Specificity MH - Survival Analysis MH - Survival Rate MH - Treatment Outcome EDAT- 2008/04/29 09:00 MHDA- 2008/05/29 09:00 CRDT- 2008/04/29 09:00 PHST- 2008/04/29 09:00 [pubmed] PHST- 2008/05/29 09:00 [medline] PHST- 2008/04/29 09:00 [entrez] AID - PACE1043 [pii] AID - 10.1111/j.1540-8159.2008.01043.x [doi] PST - ppublish SO - Pacing Clin Electrophysiol. 2008 May;31(5):575-9. doi: 10.1111/j.1540-8159.2008.01043.x.