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Predictors of in-hospital mortality in coronary artery dissection: Findings from the National Inpatient Sample 2009-2010.

AbstractBACKGROUND:
The pathophysiology of coronary artery dissection (CD) remains poorly under-stood and little is known about the factors predicting mortality in these patients. We aimed to study the epidemiology of CD and predictors of mortality in these patients.
METHODS:
All patients diagnosed with CD in the Nationwide Inpatient Sample 2009-2010 database using International Classification of Diseases ninth revision 414.12 were included in the study. Chronic conditions included in the analysis were diabetes mellitus, hypertension, hyperlipidemia, coronary artery disease (CAD), obesity, alcohol use, smoking, heart failure and ventricular arrhythmias. Non-cardiovascular conditions were connective tissue disorders, fibromuscular dysplasia, Ehlers-Danlos syndrome, Marfan's syndrome, sarcoidosis, Crohn's disease, polycystic kidney disease, rheumatoid arthritis, vasculitis including giant cell arteritis, polyarteritis nodosa and Takayasu's disease, cocaine use, early or premature labor.
RESULTS:
The prevalence of CD in the United States was 0.02% (n = 11,255), based on the hospital admissions reviewed in the database. The mean age was 63.25 years with women (64.62 years) being older than men (62.25 years) (p < 0.001). In-hospital mortality rate was 4.2%, with women (5.5%) having higher mortality than men (3.2%) (p = 0.009). Ventricular arrhythmias (OR 5.86, p < 0.001) predicted higher mortality, while hyperlipidemia (OR 0.26, p < 0.001) and CAD (OR 0.31, p = 0.001) predicted lower mortality in multivariate analysis.
CONCLUSIONS:
Our study demonstrated that CD was more prevalent in men but women had higher mortality than men. Age, heart failure and ventricular arrhythmias were independent predictors of increased mortality but hyperlipidemia CAD predicted lower mortality in patients with CD.
AuthorsJalaj Garg, Parasuram Krishnamoorthy, Chandrasekar Palaniswamy, Ambarish Pandey, Hasan Ahmad
JournalCardiology journal (Cardiol J) Vol. 22 Issue 2 Pg. 135-40 ( 2015) ISSN: 1898-018X [Electronic] Poland
PMID25002114 (Publication Type: Comparative Study, Journal Article)
Topics
  • Age Factors
  • Aged
  • Aortic Dissection (diagnosis, mortality, therapy)
  • Comorbidity
  • Coronary Aneurysm (diagnosis, mortality, therapy)
  • Databases, Factual
  • Female
  • Health Status Disparities
  • Hospital Mortality
  • Humans
  • Inpatients (statistics & numerical data)
  • Logistic Models
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Odds Ratio
  • Prevalence
  • Retrospective Studies
  • Risk Assessment
  • Risk Factors
  • Sex Factors
  • United States (epidemiology)

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