Outcomes of Acute Myocardial Infarction in Patients with Hypertrophic Cardiomyopathy

Tanush Gupta, Prakash Harikrishnan, Dhaval Kolte, Sahil Khera, Wilbert S. Aronow, Marjan Mujib, Chandrasekar Palaniswamy, Sachin Sule, Diwakar Jain, Ali Ahmed, Gregg M. Lanier, Howard A. Cooper, William H. Frishman, Gregg C. Fonarow, Julio A. Panza

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Background Acute myocardial infarction is a recognized complication in patients with hypertrophic cardiomyopathy. However, limited data are available on outcomes of patients with hypertrophic cardiomyopathy and acute myocardial infarction. Methods We analyzed the 2003-2011 Nationwide Inpatient Sample databases to identify all patients aged ≥18 years with a principal diagnosis of acute myocardial infarction. Patients with a concomitant diagnosis of hypertrophic cardiomyopathy were then identified and analyzed as a separate cohort. Multivariate logistic regression was used to compare outcomes in patients with acute myocardial infarction with and without hypertrophic cardiomyopathy. Results Of 5,901,827 patients with acute myocardial infarction, 5688 (0.1%) had a diagnosis of hypertrophic cardiomyopathy. Patients with hypertrophic cardiomyopathy were older, more likely to be female, and less likely to have traditional cardiovascular risk factors. Compared with patients without hypertrophic cardiomyopathy, patients with hypertrophic cardiomyopathy were less likely to present with ST-elevation myocardial infarction and more likely to present with non-ST-elevation myocardial infarction. Patients with hypertrophic cardiomyopathy with ST-elevation myocardial infarction or non-ST-elevation myocardial infarction were less likely to receive revascularization. In the overall population with acute myocardial infarction, there was no difference in risk-adjusted in-hospital mortality between patients with and without hypertrophic cardiomyopathy (odds ratio [OR], 0.96; 95% confidence interval [CI], 0.84-1.11; P =.59). In the population with ST-elevation myocardial infarction, patients with hypertrophic cardiomyopathy had lower risk-adjusted in-hospital mortality than those without hypertrophic cardiomyopathy (OR, 0.75; 95% CI, 0.63-0.91; P =.003), whereas in the population with non-ST-elevation myocardial infarction, there was no difference in risk-adjusted in-hospital mortality between patients with and without hypertrophic cardiomyopathy (OR, 0.97; 95% CI, 0.84-1.11; P =.63). Conclusions Patients with hypertrophic cardiomyopathy represent a small proportion of patients with acute myocardial infarction and are less likely to receive revascularization. Compared with patients without hypertrophic cardiomyopathy, patients with hypertrophic cardiomyopathy with ST-elevation myocardial infarction have lower risk-adjusted in-hospital mortality.

Original languageEnglish (US)
Pages (from-to)879-887.e1
JournalAmerican Journal of Medicine
Volume128
Issue number8
DOIs
StatePublished - Aug 1 2015
Externally publishedYes

Keywords

  • Acute myocardial infarction
  • Hypertrophic cardiomyopathy
  • In-hospital mortality
  • Revascularization

ASJC Scopus subject areas

  • Medicine(all)

Fingerprint Dive into the research topics of 'Outcomes of Acute Myocardial Infarction in Patients with Hypertrophic Cardiomyopathy'. Together they form a unique fingerprint.

  • Cite this

    Gupta, T., Harikrishnan, P., Kolte, D., Khera, S., Aronow, W. S., Mujib, M., Palaniswamy, C., Sule, S., Jain, D., Ahmed, A., Lanier, G. M., Cooper, H. A., Frishman, W. H., Fonarow, G. C., & Panza, J. A. (2015). Outcomes of Acute Myocardial Infarction in Patients with Hypertrophic Cardiomyopathy. American Journal of Medicine, 128(8), 879-887.e1. https://doi.org/10.1016/j.amjmed.2015.02.025