RESUMEN
BACKGROUND: There are few literatures evaluating the association between cytotoxin-associated gene A (CagA) positive strains of Helicobacter pylori (HP) and the severity of coronary heart disease (CHD). This study was designed to investigate this association. METHODS: Medical and drug history of 112 consecutive patients who were candidate for coronary angiography were taken. Fasting blood samples were obtained to measure C-reactive protein (CRP), anti Helicobacter pylori immunoglobulin G (anti-HP IgG), anti-CagA antibody (Ab) and interlukine-6 (IL6). According to angiography reports, participants were divided into patients with mild (n = 69) and with sever CHD (n = 36). To measure the association between CagA positive strains of HP with the severity of CHD, multivariate logistic regression tests were used by adjusting age, sex, history of diabetes mellitus (DM), dyslipidemia (DLP), and/or hypertension (HTN), CRP status and IL-6 level. RESULTS: The analysis was concluded on 105 subjects. HP infection and CagA Ab were not significantly higher compared to the patients with severe and mild CHD (P = 0.28 and P = 0.68, respectively). Colonization of CagA positive HP did not significantly associate with severity of CHD (OR 1.05, 95% CI 0.33-3. 39). CONCLUSION: Colonization of CagA positive HP was not an independent risk factor for severe coronary heart disease.
RESUMEN
BACKGROUND: There is still controversy about association of Helicobacter pylori (H. pylori) infection with coronary heart disease (CHD). This study designed to evaluate this association in a sample of Iranians Population. METHODS: Medical and drug history as well as fasting blood samples of 112 consecutive patients who were candidate for coronary angiography were taken on catheterization day. Fasting blood samples were used to measure C-reactive protein (CRP), anti H. pylori immunoglobulin G (anti H. pylori IgG) and interlukine-6 (IL6). According to angiography reports, participants were divided into patients with (n = 62) or without CHD (n = 43). To compare the association between H. pylori infection with CHD, multivariate logistic regression tests were used by adjusting sex and age, age and sex plus history of diabetes mellitus (DM), Dyslipidemia (DLP), and/or hypertension (HTN), CRP status and IL-6 level. RESULTS: Sixty two patients with CHD and 43 participants without CHD were enrolled in the present study. The mean ages of patients with and without CHD were 62.4 261 9.5 and 59.0 261 10.5 years respectively. Multivariate logistic regression analysis after adjusting for history of DM and/or DLP and/or HTN plus CRP status and IL-6 level showed significant association of H. pylori infection with CHD (OR 3.18, 95%CI 1.08-9.40). CONCLUSION: H. pylori infection is one of the probable risk factors for CHD independent of history of DM, DLP, HTN, CRP status and IL-6 level.