PMID- 21184540 OWN - NLM STAT- MEDLINE DCOM- 20110408 LR - 20221207 IS - 1932-8737 (Electronic) IS - 0160-9289 (Print) IS - 0160-9289 (Linking) VI - 33 IP - 12 DP - 2010 Dec TI - Low serum sodium as a poor prognostic indicator for mortality in congestive heart failure patients. PG - E13-7 LID - 10.1002/clc.20560 [doi] AB - BACKGROUND: The incidence of congestive heart failure (CHF) has not significantly declined over the past 50 years, and overall survival rates are low at 5 years following diagnosis. Numerous studies have shown low serum sodium to be a poor prognostic indicator of all cause mortality in CHF patients. HYPOTHESIS: The goal of this hypothesis was to validate if hyponatremia is an important predictor of mortality in an outpatient population of CHF patients on maximal combined angiotensin-converting enzyme inhibitor (ACEI) and beta-blocker therapy. METHODS: A total of 364 (13% with hyponatremia) patients with CHF (ejection fraction [EF]