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  • Title: [The influence of Chlamydia pneumoniae infection on acute coronary syndromes].
    Author: Gajek J, Choroszy-Król I, Zyśko D, Teryks-Wołyniec D, Halawa B.
    Journal: Pol Merkur Lekarski; 2003 Jul; 15(85):20-3. PubMed ID: 14593953.
    Abstract:
    UNLABELLED: Chlamydia pneumoniae is one of the infectious factors the role of which is considered in the process of atherosclerosis and its complications. THE AIM: Of the study was to assess the incidence of Ch. pneumoniae infection in the patients with acute coronary events. The study was carried out in 36 patients, mean age 61.2 +/- 13.4 years, 27 men and 9 women hospitalised in our Department with the diagnosis of previous or recent acute myocardial infarction. The control group consisted of 19 subjects, aged 61.1 +/- 14.3 years, 10 men and 9 women hospitalised due to other reasons. In all studied patients during the first 24 hours venous blood was taken for the assessment of fibrinogen and C-reactive protein (CRP) concentrations and titres of IgA and IgG anti-Ch. pneumoniae antibodies, and pharyngeal swabs were done for Ch. pneumoniae assessment. RESULTS: Positive swab tests were found in 19% of the patients, positive IgG titres in 80% and IgA in 64% of the patients. In the control group the corresponding values were 11, 79, 42%, respectively. In the patients with positive IgG titres, negative IgA titre result was observed in 21% and in the control group in 53% (p < 0.05). The CRP level was significantly higher in the studied patients than in the control group (24.2 vs 4.2 mg/l; p < 0.05). CONCLUSIONS: 1. The high percentage of positive serologic tests and rare positive results of pharyngeal swabs indicate a frequent contact with Ch. pneumoniae in human population. 2. Ch. pneumoniae infection exerts no significant influence on the unspecific markers of inflammation. 3. The higher frequency of seroconversion-positive IgG and negative IgA titres--in the control group indicates the role of prolonged or acute Ch. pneumoniae infection in the development or progression of coronary atherosclerosis and its complications.
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