Effectiveness of Probucol in Preventing Restenosis after Percutaneous Transluminal Coronary Angioplasty.

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Abstract
Lipid lowering therapies were employed to prevent restenosis following elective percutaneous transluminal coronary angioplasty (PTCA). The effect of probucol was compared to that of Pravastatin in 141 coronary atherosclerosis patients. Probucol (750 mg/day) was administered for at least 30 days prior to PTCA (34 patients, group P-1) or less than 14 days prior to PTCA (27 patients, group P-2). Pravastatin (10 mg/day) was administered for at least 30 days prior to PTCA (38 patients, group V-1) or less than 14 days prior to PTCA (42 patients, group V-2). In group P-1, the patient restenosis rate was 17.6% and lesion restenosis rate was 14%. These rates were significantly lower than those of group V-1, which were 44.7% and 40.4% respectively (p < 0.05). The respective values were 48.1% and 51.8% in group P-2 (p < 0.05, vs group P-1) and 35.7% and 34% (p < 0.05, vs group P-1) in group V-2. Probucol seems to work, not only by lowering cholesterol but also by its antioxidative properties when administered for a sufficient period prior to PTCA.

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