title: Lack of association of coronary artery disease with H.pylori infection.
abstract: OBJECTIVE
  It has been suggested from previous studies that there is an associated increased risk of coronary artery disease (CAD) in patients with Helicobacter pylori (H.pylori). However, others dispute this. We therefore evaluated this hypothesis in a group of patients with confirmed H.pylori infection.
  
  
  METHODS
  A total of 158 patients with dyspeptic symptoms were evaluated by esophago-gastro-duodenoscopy (EGD) in King Khalid University Hospital in Riyadh, Kingdom of Saudi Arabia from May through to June 1997. Endoscopic biopsies and histology as well as culture and serology for H.pylori were obtained. In patients with confirmed H.pylori a further analysis was performed looking at associated (CAD) or known risk factors for CAD.
  
  
  RESULTS
  Among the 158 patients who underwent EGD, 143 patients (90.5%) were found to have H.pylori either by culture, histology or serology, or both in a percentage of (31.5%) (77.6%) and (60.8%). There was no evidence of CAD in this group of patients based on history, electrocardiogram (ECG), echocardiography, ECG stress test, dypiridamole thallium scan or coronary angiography. Other known risk factors for CAD were cigarette smoking (12.6%), diabetes mellitus (10.5%), hypertension (1.4%) and hyperlipidemia (2.8%).
  
  
  CONCLUSIONS
  Helicobacter pylori infection does not increase the risk of CAD, and should not be considered as an independent risk factor for CAD. Further, prospective large trial is needed to confirm our finding.
authors.affiliation: Division of Cardiology, Department of Medicine, King Khalid University Hospital, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia. mzkhalil@hotmail.com
authors.forename: Mansour M
authors.initials: MM
authors.lastname: Al-Nozha
authors.forename: Mohamed Z
authors.initials: MZ
authors.lastname: Khalil
authors.forename: Ibrahim A
authors.initials: IA
authors.lastname: Al-Mofleh
authors.forename: Abdullah S
authors.initials: AS
authors.lastname: Al-Ghamdi
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D015897:Comorbidity; D003327:Coronary Disease / Q000175:diagnosis* / Q000453:epidemiology*; D004562:Electrocardiography; D005260:Female; D016481:Helicobacter Infections / Q000175:diagnosis* / Q000453:epidemiology*; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012016:Reference Values; D012189:Retrospective Studies; D018570:Risk Assessment; D012529:Saudi Arabia / Q000453:epidemiology; D012720:Severity of Illness Index; D017678:Sex Distribution