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  • Title: Effects of probucol and cilostazol alone and in combination on frequency of poststenting restenosis.
    Author: Sekiya M, Funada J, Watanabe K, Miyagawa M, Akutsu H.
    Journal: Am J Cardiol; 1998 Jul 15; 82(2):144-7. PubMed ID: 9678282.
    Abstract:
    The present study was conducted to assess the preventive effect of combined treatment with probucol, an antioxidant, and cilostazol, a phosphodiesterase inhibitor, against poststenting restenosis. Study patients were randomized to 4 modality groups 1 week before stenting: control, probucol (500 mg/day), cilostazol (200 mg/day), and probucol plus cilostazol. Treatment on these modalities was conducted from 5 prestent days until the poststenting follow-up evaluation (6 poststenting months). All patients received aspirin (81 mg/day). The efficacy of each modality against restenosis was evaluated in a total 126 patients with 165 coronary arterial lesions, using a quantitative method. The decrease in luminal diameter at the poststenting follow-up was 1.04 +/- 0.57 mm for controls, 0.88 +/- 0.82 mm for those taking probucol, 0.61 +/- 0.59 mm for those taking cilostazol (p <0.05 vs control), and 0.40 +/- 0.52 mm (p <0.01 vs control) for the combined treatment group. Restenosis rate per segment was 31.7% for controls, 16.7% for the probucol group, 12.5% for the cilostazol group (p <0.05 vs control), and 9.5% for the combined treatment group (p <0.05 vs the control). Neither mortality, myocardial infarction, stent thrombosis, or coronary bypass surgery, nor any serious complications were observed in the combined treatment group. Combined treatment with probucol and cilostazol has thus proved safe and effective in preventing acute poststenting complications and suppressing chronic restenosis.
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