title: Clinical presentation and cardiovascular risk profiles in patients with left main coronary artery disease in a middle eastern country.
abstract: We evaluated the prevalence and clinical profile of patients with left main coronary artery disease (LMCA) in Qatar between 2006 and 2010. Patients were divided into 2 groups: patients with LMCA and patients without LMCA but had severe 3-vessel disease (VeD) eligible for surgical revascularization. Among 7000 patients who underwent coronary angiography, 210 patients had significant LMCA and 200 patients with severe 3VeD were matched for age and sex. Diabetes mellitus and hypertension were comparable in the 2 groups. Presentations with myocardial infarction or heart failure were comparable in both groups. Isolated LMCA was 4-fold higher in women (P = .02). Dyslipidemia and smoking were more prevalent in patients with distal and proximal lesions, respectively. Renal failure was independent predictor of LMCA (adjusted odds ratio: 2.6; 95% confidence interval: 1.43-4.69). One-year mortality was higher in LMCA (P = .01). The LMCA carries high mortality. Certain cardiovascular risk factors were important predictors of stenosis site.
authors.affiliation: Department of Cardiology and Cardiovascular Surgery, Hamad Medical Corporation, Doha, Qatar.
authors.forename: A A
authors.initials: AA
authors.lastname: Gehani
authors.forename: Ayman
authors.initials: A
authors.lastname: El-Menyar
authors.forename: Islam
authors.initials: I
authors.lastname: Elgendy
authors.forename: Ahmed
authors.initials: A
authors.lastname: Abuzaid
authors.forename: Emad
authors.initials: E
authors.lastname: Ahmed
authors.forename: Saiful
authors.initials: S
authors.lastname: Haque
mesh_terms: D003324:Coronary Artery Disease / Q000175:diagnosis / Q000453:epidemiology*; D050171:Dyslipidemias / Q000453:epidemiology; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D015995:Prevalence; D011780:Qatar / Q000453:epidemiology; D012189:Retrospective Studies; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology