PMID- 12939552 OWN - NLM STAT- MEDLINE DCOM- 20040512 LR - 20190819 IS - 1346-9843 (Print) IS - 1346-9843 (Linking) VI - 67 IP - 9 DP - 2003 Sep TI - Percutaneous transluminal septal myocardial ablation for hypertrophic obstructive cardiomyopathy. PG - 763-7 AB - Percutaneous transluminal septal myocardial ablation (PTSMA) is a new therapeutic option for patients with hypertrophic obstructive cardiomyopathy (HOCM). In the present study, the acute and follow-up results of PTSMA were evaluated. From August 1997 to March 2003 27 medically refractory patients (New York Heart Association (NYHA) functional class 2.9+/-0.6) with HOCM underwent PTSMA. The target septal branch was determined by probationary ballooning in 3 and by myocardial contrast echocardiography in 24 patients. The mean resting left ventricular outflow tract pressure gradient (PG) was reduced from 70+/-44 to 24+/-22 mmHg (p<0.0001); the peak concentration of creatine kinase was 1545+/-686 IU/L. Although transient trifascicular block was observed in 14 patients, permanent pacemaker implantation was not required. There were no major adverse cardiac events during the hospital stay; the mean clinical follow-up was 2.2+/-1.7 years. Repeated PTSMA was needed in 1 patient; however, symptomatic improvement had been well preserved in all patients (NYHA class 1.2+/-0.4). Follow-up echocardiographic examination showed sustained improvement in PG, septal and left ventricular posterior wall thicknesses, and the grade of systolic anterior movement and regurgitation of the mitral valve. In conclusion, PTSMA is a safe and effective therapeutic option for medically refractory patients with HOCM. FAU - Tsuchikane, Etsuo AU - Tsuchikane E AD - Department of Cardiology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan. dokincha@aioros.ocn.ne.jp FAU - Takeda, Yoshihiro AU - Takeda Y FAU - Kobayashi, Tohru AU - Kobayashi T FAU - Yachiku, Kenji AU - Yachiku K FAU - Nasu, Kenya AU - Nasu K FAU - Kobayashi, Yoshiki AU - Kobayashi Y FAU - Matsumoto, Hiroaki AU - Matsumoto H FAU - Awata, Nobuhisa AU - Awata N LA - eng PT - Clinical Trial PT - Journal Article PL - Japan TA - Circ J JT - Circulation journal : official journal of the Japanese Circulation Society JID - 101137683 RN - 3K9958V90M (Ethanol) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Cardiomyopathy, Hypertrophic/diagnostic imaging/*therapy MH - *Catheterization MH - Echocardiography MH - Ethanol/*therapeutic use MH - Female MH - Follow-Up Studies MH - Heart Septum/*drug effects MH - Humans MH - Inpatients MH - Male MH - Middle Aged MH - Retreatment MH - Treatment Outcome EDAT- 2003/08/27 05:00 MHDA- 2004/05/13 05:00 CRDT- 2003/08/27 05:00 PHST- 2003/08/27 05:00 [pubmed] PHST- 2004/05/13 05:00 [medline] PHST- 2003/08/27 05:00 [entrez] AID - 10.1253/circj.67.763 [doi] PST - ppublish SO - Circ J. 2003 Sep;67(9):763-7. doi: 10.1253/circj.67.763.