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Long-term outcome of nonobstructive versus obstructive hypertrophic cardiomyopathy: A systematic review and meta-analysis

Pelliccia, Francesco, Pasceri, Vincenzo, Limongelli, Giuseppe, Autore, Camillo, Basso, Cristina, Corrado, Domenico, Imazio, Massimo, Rapezzi, Claudio, Sinagra, Gianfranco, Mercuro, Giuseppe·2017·International Journal of Cardiology
DOI 10.1016/j.ijcard.2017.06.071
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Abstract

Background Prognosis of hypertrophic cardiomyopathy (HCM) is particularly heterogeneous. Patients with nonobstructive HCM (NOCM) are thought to be at relatively low-risk as compared with obstructive HCM (HOCM) with no need of major treatment options. However, available evidence of NOCM comes mainly from tertiary centers where a referral bias is likely to occur. Aim of this study was to perform a systematic review and meta-analysis of the published literature on hypertrophic cardiomyopathy (HCM) in order to outline differences in presenting features and long-term outcome between NOCM and HOCM. Methods MEDLINE/Pubmed, EMBASE and Cochrane databases up to December 31, 2016, and reviewed cited references to identify relevant studies were used. The primary endpoints were HCM-related overall mortality rate and yearly rate of cardiac death. Other endpoints were incidences of sudden and congestive heart failure deaths. Results A total of 20 studies entered the meta-analysis on the long-term outcome of NOCM vs HOCM. They included a total of 7731 patients, 5058 patients with NOCM (65%) and 2673 patients with HOCM (35%). During the follow-up, annual mortality related to HCM averaged 1.55% in NOCM and 1.77% in HOCM (Relative Risk: 0.89, 95% confidence intervals: 0.68 to 1.17, p=0.40). Overall, 5 studies reported significantly higher mortality for HOCM, 3 higher mortality for NOCM, and 12 no significant differences. Conclusion This large study-level meta-analysis shows that long-term morta…

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Metadata

Authors
Pelliccia, F., Pasceri, V., Limongelli, G., Autore, C., Basso, C., Corrado, D., Imazio, M., Rapezzi, C., Sinagra, G., & Mercuro, G.
Venue
International Journal of Cardiology
Publisher
Elsevier BV
Published
2017-09
Volume
243
Pages
379-384
ISSN
0167-5273
DOI
10.1016/j.ijcard.2017.06.071
Cited by
66
References
2
Language
en
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)

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CoChat. (2026). Citation check: Long-term outcome of nonobstructive versus obstructive hypertrophic cardiomyopathy: A systematic review and meta-analysis. https://app.cochat.ai/papers/10.1016/j.ijcard.2017.06.071
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Pelliccia, F., Pasceri, V., Limongelli, G., Autore, C., Basso, C., Corrado, D., Imazio, M., Rapezzi, C., Sinagra, G., & Mercuro, G. (2017). Long-term outcome of nonobstructive versus obstructive hypertrophic cardiomyopathy: A systematic review and meta-analysis. International Journal of Cardiology. https://doi.org/10.1016/j.ijcard.2017.06.071