PMID- 20641106 OWN - NLM STAT- MEDLINE DCOM- 20101026 LR - 20211020 IS - 1932-8737 (Electronic) IS - 0160-9289 (Print) IS - 0160-9289 (Linking) VI - 33 IP - 7 DP - 2010 Jul TI - Clinical features of the dilated phase of hypertrophic cardiomyopathy in comparison with those of dilated cardiomyopathy. PG - E24-8 LID - 10.1002/clc.20533 [doi] AB - BACKGROUND: Although the dilated phase of hypertrophic cardiomyopathy (D-HCM) characterized by left ventricular (LV) systolic dysfunction and cavity dilatation has been reported to be a poor prognosis, this is now in contrast to the improved prognosis of dilated cardiomyopathy (DCM) in the era of advancements in heart failure management. There has been no investigation of the clinical features of D-HCM compared with those of DCM from the point of management of systolic dysfunction. HYPOTHESIS: The aim of this study was to investigate the clinical features of D-HCM in comparison with those of DCM in a single institute. METHODS: We studied 20 consecutive patients with D-HCM (global ejection fraction < 50%) and 115 consecutive patients with DCM. RESULTS: At diagnosis of D-HCM, 8 (40%) of the D-HCM patients already experienced dyspnea (New York Heart Association [NYHA] class >or= III). Left atrial diameter was larger and prevalence of atrial fibrillation was higher in the D-HCM group, although LV size was larger and LV ejection fraction was lower in the DCM group. During the follow-up period (4.0 years), 11 (55%) of the patients with D-HCM died. The 5-year survival rate from all-cause mortality including cardiac transplantation was 45.6% in patients with D-HCM vs 81.6% in patients with DCM (log-rank P = .0001). CONCLUSIONS: Patients with D-HCM were more symptomatic at diagnosis, although LV dilatation and impaired fractional shortening seemed more severe in patients with DCM. The prognosis for D-HCM patients was worse than that for patients with DCM despite similar or even more intensive treatment for heart failure. CI - Copyright (c) 2010 Wiley Periodicals, Inc. FAU - Hamada, Tomoyuki AU - Hamada T AD - Department of Medicine and Geriatrics, Kochi Medical School, Nankoku-shi, Kochi, Japan. FAU - Kubo, Toru AU - Kubo T FAU - Kitaoka, Hiroaki AU - Kitaoka H FAU - Hirota, Takayoshi AU - Hirota T FAU - Hoshikawa, Eri AU - Hoshikawa E FAU - Hayato, Kayo AU - Hayato K FAU - Shimizu, Yuji AU - Shimizu Y FAU - Okawa, Makoto AU - Okawa M FAU - Yamasaki, Naohito AU - Yamasaki N FAU - Matsumura, Yoshihisa AU - Matsumura Y FAU - Yabe, Toshikazu AU - Yabe T FAU - Takata, Jun AU - Takata J FAU - Doi, Yoshinori L AU - Doi YL LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Clin Cardiol JT - Clinical cardiology JID - 7903272 SB - IM MH - Adult MH - Aged MH - Atrial Fibrillation/etiology MH - Cardiomyopathy, Dilated/*complications/mortality/physiopathology/therapy MH - Cardiomyopathy, Hypertrophic/*complications/mortality/physiopathology/therapy MH - Chi-Square Distribution MH - Disease Progression MH - Dyspnea/etiology MH - Female MH - Heart Failure/*etiology/mortality/physiopathology/therapy MH - Heart Transplantation MH - Humans MH - Japan MH - Kaplan-Meier Estimate MH - Male MH - Middle Aged MH - Risk Assessment MH - Risk Factors MH - Stroke Volume MH - Survival Rate MH - Time Factors MH - Treatment Outcome MH - Ventricular Dysfunction, Left/*etiology/mortality/physiopathology/therapy MH - *Ventricular Function, Left MH - Ventricular Remodeling PMC - PMC6652988 EDAT- 2010/07/20 06:00 MHDA- 2010/10/27 06:00 PMCR- 2010/03/31 CRDT- 2010/07/20 06:00 PHST- 2010/07/20 06:00 [entrez] PHST- 2010/07/20 06:00 [pubmed] PHST- 2010/10/27 06:00 [medline] PHST- 2010/03/31 00:00 [pmc-release] AID - CLC20533 [pii] AID - 10.1002/clc.20533 [doi] PST - ppublish SO - Clin Cardiol. 2010 Jul;33(7):E24-8. doi: 10.1002/clc.20533.