PMID- 27595481 OWN - NLM STAT- MEDLINE DCOM- 20180803 LR - 20180803 IS - 1421-9751 (Electronic) IS - 0008-6312 (Linking) VI - 136 IP - 2 DP - 2017 TI - Comparison of Long-Term Outcome between Apical and Asymmetric Septal Hypertrophic Cardiomyopathy. PG - 108-114 LID - 10.1159/000448239 [doi] AB - OBJECTIVES: As reported, diagnostic age, gender and presence of outflow tract obstruction have an impact on prognosis in patients with hypertrophic cardiomyopathy. The aim of this study was to compare the long-term outcome between apical hypertrophic cardiomyopathy (ApHCM) and asymmetric septal hypertrophic cardiomyopathy (ASHCM) after the exclusion of these factors. METHODS: A total of 540 patients (270 with ApHCM and 270 with ASHCM) identified in a consecutive single-center cohort were retrospectively studied. The two groups were matched by diagnostic age, gender and the presence of outflow tract obstruction. Clinical characteristics and long-term outcomes were compared. RESULTS: The mean follow-up duration in ASHCM and ApHCM were 6.6 +/- 5.5 and 7.6 +/- 4.1 years, respectively. During follow-up, 16 patients experienced cardiovascular death in the ASHCM group, while 2 patients experienced cardiovascular death in the ApHCM group (6.3 vs. 0.7%, p < 0.01). Cardiovascular morbidity in the ASHCM and ApHCM groups were 39.9 and 18.5% (p < 0.01). In the multivariate Cox regression analysis late gadolinium enhancement (LGE; HR 4.81, 95% CI 1.28-78.0, p = 0.03) and unexplained syncope (HR 9.68, 95% CI 1.9-17.2, p < 0.01) were independent predictors for cardiovascular mortality. Unexplained syncope was independently associated with a higher risk for sudden cardiac death (HR 4.3, 95% CI 1.2-15.3, p = 0.02). CONCLUSIONS: After eliminating the interference of diagnostic age, gender and outflow tract obstruction, ASHCM represented a worse prognosis with a higher incidence of cardiovascular mortality and morbidity than ApHCM. LGE was a strong predictor for cardiovascular death. CI - (c) 2016 S. Karger AG, Basel. FAU - An, Shuoyan AU - An S AD - Key Laboratory of Clinical Trial Research in Cardiovascular Drugs, Ministry of Health, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. FAU - Fan, Chaomei AU - Fan C FAU - Yan, Lirong AU - Yan L FAU - Cai, Chi AU - Cai C FAU - Yang, Yinjian AU - Yang Y FAU - Zhai, Shanshan AU - Zhai S FAU - Zhao, Shihua AU - Zhao S FAU - Liu, Yanling AU - Liu Y FAU - Duan, Fujian AU - Duan F FAU - Wang, Zhimin AU - Wang Z FAU - Li, Yishi AU - Li Y LA - eng PT - Comparative Study PT - Journal Article DEP - 20160906 PL - Switzerland TA - Cardiology JT - Cardiology JID - 1266406 SB - IM MH - Adult MH - Cardiomyopathy, Hypertrophic/*complications/mortality/pathology MH - Cardiovascular Diseases/epidemiology/mortality MH - Death, Sudden, Cardiac/etiology MH - Female MH - Follow-Up Studies MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - Prognosis MH - Proportional Hazards Models MH - Retrospective Studies MH - Risk Factors MH - Syncope/etiology EDAT- 2016/09/07 06:00 MHDA- 2018/08/04 06:00 CRDT- 2016/09/06 06:00 PHST- 2016/06/16 00:00 [received] PHST- 2016/07/07 00:00 [accepted] PHST- 2016/09/07 06:00 [pubmed] PHST- 2018/08/04 06:00 [medline] PHST- 2016/09/06 06:00 [entrez] AID - 000448239 [pii] AID - 10.1159/000448239 [doi] PST - ppublish SO - Cardiology. 2017;136(2):108-114. doi: 10.1159/000448239. Epub 2016 Sep 6.