PMID- 23801997 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20130627 LR - 20240514 IS - 1664-3828 (Print) IS - 1664-5502 (Electronic) IS - 1664-5502 (Linking) VI - 3 IP - 1 DP - 2013 Apr TI - Increased Spironolactone in Advanced Heart Failure: Effect of Doses Greater than 25 mg/Day on Plasma Potassium Concentration. PG - 1-6 LID - 10.1159/000346447 [doi] AB - BACKGROUND: Daily doses of spironolactone higher than 25 mg are rarely used in heart failure (HF) patients, presumably due to the concern for hyperkalemia. However, in advanced HF, doses >/=50 mg have been found to be necessary to produce natriuresis. The aim of the present study was to examine the safety of natriuretic doses of spironolactone (50-200 mg) on serum potassium concentration in New York Heart Association (NYHA) class III/IV HF patients over several weeks. METHODS: 18 patients with advanced HF received 50-200 mg of spironolactone in addition to standard treatment. Serum electrolytes, BUN and serum creatinine were assessed at baseline, during increased doses of spironolactone and at the 1-month follow-up. RESULTS: During a total of 738 patient-weeks, there was no significant increase in mean serum potassium (4.0 vs. 4.2 mEq/l) or serum creatinine (1.3 vs. 1.4 mg/dl). However, in 3 patients, spironolactone treatment was stopped due to a mean increase in serum creatinine (1.9 vs. 2.6 mg/dl) and in one of them, an increase in serum potassium (4.4 vs. 5.2 mEq/l) was noted. CONCLUSION: Increased doses of spironolactone are generally safe during outpatient follow-up in selected patients with advanced HF, who are receiving treatment with ACE inhibitors, beta-blockers, and loop diuretics. FAU - Shchekochikhin, Dmitry AU - Shchekochikhin D FAU - Lindenfeld, JoAnn AU - Lindenfeld J FAU - Schrier, Robert AU - Schrier R LA - eng PT - Journal Article DEP - 20130130 PL - Switzerland TA - Cardiorenal Med JT - Cardiorenal medicine JID - 101554863 PMC - PMC3678142 OTO - NOTNLM OT - Heart failure OT - Hyperkalemia OT - Spironolactone EDAT- 2013/06/27 06:00 MHDA- 2013/06/27 06:01 PMCR- 2013/01/30 CRDT- 2013/06/27 06:00 PHST- 2012/09/14 00:00 [received] PHST- 2012/12/07 00:00 [accepted] PHST- 2013/06/27 06:00 [entrez] PHST- 2013/06/27 06:00 [pubmed] PHST- 2013/06/27 06:01 [medline] PHST- 2013/01/30 00:00 [pmc-release] AID - 000346447 [pii] AID - crm-0003-0001 [pii] AID - 10.1159/000346447 [doi] PST - ppublish SO - Cardiorenal Med. 2013 Apr;3(1):1-6. doi: 10.1159/000346447. Epub 2013 Jan 30.