期刊
ATHEROSCLEROSIS
卷 179, 期 1, 页码 103-110出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.atherosclerosis.2004.08.031
关键词
atherosclerosis; Chlamydia pneumoniae; peripheral arterial occlusive disease; angioplasty; antibiotic treatment
A possible influence of Chlamydia pneumoniae seropositivity on the clinical course of peripheral arterial occlusive disease (PAOD) has not been investigated previously. Though roxithromycin therapy was found to inhibit progression of PAOD, the nature of this effect (antibiotic or anti-inflammatory) has remained elusive. The course of PAOD was prospectively assessed in elderly men during 4 years, comparing 51 C pneumoniae seropositive (IgG >= 1:128) with 46 seronegative patients (IgG < 1:64 and IgA < 1:32). Twenty of the seropositive patients were treated with roxithromycin (400mg daily) for 4 weeks. Limitation of the walking distance to 200m or less was observed in 55% of the seropositive untreated patients as compared to 30% of both, seronegative and macrolide-treated patients. The number of invasive revascularizations per patient was 1.7 in the seropositive untreated group as compared to 0.5 in the seronegative and the macrolide-treated group. Considering possible confounding variables, such as classical vascular risk factors, ordinal regression analyses showed a significant association of C. pneumoniae seropositivity with limitation of the walking distance (p=0.027) and need for invasive revascularization (p = 0.037). The effect of macrolide treatment on these outcome measures was marked (p < 0.001 and p = 0.040, respectively) during 2.7 years but decreased in the second part of the observation period. This study provides good evidence that C pneumoniae are involved in the progression of PAOD and that antibiotic treatment directed against C. pneumoniae is effective in inhibiting this process. (c) 2004 Elsevier Ireland Ltd. All rights reserved.
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