PMID- 15813618 OWN - NLM STAT- MEDLINE DCOM- 20050621 LR - 20200225 IS - 0160-9289 (Print) IS - 1932-8737 (Electronic) IS - 0160-9289 (Linking) VI - 28 IP - 3 DP - 2005 Mar TI - A prospective follow-up of alcohol septal ablation for symptomatic hypertrophic obstructive cardiomyopathy--the Baylor experience (1996-2002). PG - 124-30 AB - BACKGROUND: There is a paucity of data on the long-term outcome of alcohol septal ablation (ASA) for symptomatic hypertrophic obstructive cardiomyopathy (HOCM). HYPOTHESIS: The study was undertaken to evaluate the longer-term outcome of ASA therapy for symptomatic HOCM. METHODS: In all, 137 patients were enrolled consecutively (1996-1999) and 130 (95%) (74 men, 56 women, aged 51 +/- 17 years) underwent ASA and had serial prospective follow-up for up to 5 years (mean follow-up 3.6 +/- 1.4 years). Evaluation included angina (Canadian Cardiovascular Society [CCS] score), dyspnea (New York Heart Association [NYHA] class), duration of exercise on treadmill, and echocardiographic indices. RESULTS: Ethanol (3.5 +/- 1.5 cc), injected into 1.5 +/- 0.6 arteries, induced a mean peak plasma creatine kinase (CK) of 1676 +/- 944 units. Complications of procedures included death 1.5% (2/130), heart block requiring permanent pacemaker 13% (17/130), and coronary dissection 4.4% (6/130). Baseline versus last follow-up visit: NYHA class decreased from 3.0 +/- 0.4 to 1.2 +/- 0.6 (p < 0.01); CCS angina score from 2.0 +/- 0.8 to 0.08 +/- 0.4 (p < 0.01); and duration of exercise increased from 322 +/- 207 to 443 +/- 200 s (p < 0.01). Resting left ventricular outflow tract gradient at baseline versus last follow-up visit showed a decrease from 74 +/- 30 to 4 +/- 13 (p < 0.01), and the dobutamine-provoked gradient of 88 +/- 29 decreased to 21 +/- 21 (p < 0.01) mmHg. All-cause mortality over the duration of follow-up was 7.7% (10) giving an annual rate of 2.1%, and cardiac mortality was 2.3% (3) reflecting an annual rate of 0.6%. CONCLUSIONS: Alcohol septal ablation decreased symptoms and improved exercise performance, indicating that it is an effective procedure for symptomatic HOCM. FAU - Fernandes, Valerian L AU - Fernandes VL AD - Section of Cardiology, Medical University of South Carolina, Charleston, South Carolina 77030, USA. FAU - Nagueh, Sherif F AU - Nagueh SF FAU - Wang, Wei AU - Wang W FAU - Roberts, Robert AU - Roberts R FAU - Spencer, William H 3rd AU - Spencer WH 3rd LA - eng GR - P50-HL54313-07/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Clin Cardiol JT - Clinical cardiology JID - 7903272 RN - 3K9958V90M (Ethanol) SB - IM MH - Aged MH - Aged, 80 and over MH - Cardiomyopathy, Hypertrophic/mortality/*therapy MH - *Catheter Ablation/methods MH - Ethanol/administration & dosage MH - Exercise Tolerance MH - Female MH - Follow-Up Studies MH - Heart Septum/pathology MH - Humans MH - Male MH - Middle Aged MH - Prospective Studies MH - Treatment Outcome MH - Ventricular Function, Left PMC - PMC6654248 EDAT- 2005/04/09 09:00 MHDA- 2005/06/23 09:00 PMCR- 2006/12/05 CRDT- 2005/04/09 09:00 PHST- 2005/04/09 09:00 [pubmed] PHST- 2005/06/23 09:00 [medline] PHST- 2005/04/09 09:00 [entrez] PHST- 2006/12/05 00:00 [pmc-release] AID - CLC4960280305 [pii] AID - 10.1002/clc.4960280305 [doi] PST - ppublish SO - Clin Cardiol. 2005 Mar;28(3):124-30. doi: 10.1002/clc.4960280305.