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Observational Study
. 2014 Aug 1;175(2):323-7.
doi: 10.1016/j.ijcard.2014.05.024. Epub 2014 May 16.

Patient characteristics and comorbidities associated with cerebrovascular accident following acute myocardial infarction in the United States

Nassim Naderi  1 , Hossein Masoomi  2 , Tahseen Mozaffar  1 , Shaista Malik  3
Affiliations
Observational Study

Patient characteristics and comorbidities associated with cerebrovascular accident following acute myocardial infarction in the United States

Nassim Naderi et al. Int J Cardiol. .

Abstract

Background: Although cerebrovascular accident (CVA) is a relatively infrequent complication of acute myocardial infarction (AMI), the occurrence of CVA in patients with AMI is associated with increased morbidity and mortality. We wanted to assess post-AMI CVA rate in the United States and identify the associated patient characteristics, comorbidities, type of AMI, and utilization of invasive procedures.

Methods: This is an observational study from the Nationwide Inpatient Sample, 2006-2008. Using multivariate regression models, we assessed predictive risk factors for post-AMI CVA among patients admitted for AMI.

Results: Among the 1,924,413 patients admitted for AMI, the overall rate of CVA was 2% (ischemic stroke: 1.47%, transient ischemic attack [TIA]: 0.35% and hemorrhagic stroke: 0.21%). In this sample of AMI patient, higher incidence of CVA was associated with: CHF (adjusted odds ratio [AOR] 1.71; 95% confidence interval [CI], 1.58-1.84,), age over 65 AOR, 1.65; 95% CI, 1.60-1.70, alcohol abuse AOR, 1.60; 95% CI, 1.49-1.73, cocaine use AOR, 1.48; 95% CI, 1.29-1.70, atrial fibrillation AOR, 1.43; 95% CI, 1.39-1.46, Black race AOR, 1.35; 95% CI, 1.30-1.40, female gender AOR, 1.32; 95% CI, 1.29-1.35, peripheral vascular disease [PVD] AOR, 1.26; 95% CI, 1.22-1.30, coronary artery bypass graft (CABG) AOR, 1.22; 95% CI, 1.17-1.27, P<0.0001, STEMI AOR, 1.17; 95% CI, 1.14-1.20 and teaching hospitals AOR, 1.09; 95% CI, 1.06-1.12.

Conclusion: Female gender, older age (age≥65), black ethnicity, comorbidities including CHF, PVD, atrial fibrillation as well as STEMI and undergoing CABG were associated with the highest risk of CVA post-AMI.

Keywords: Acute myocardial infarction; Cerebrovascular accident; Stroke; Transient ischemic attack.

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