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Galassi, A.R. et al.

Galassi, Tamburino, Nicosia, Russo, Grassi, Monaco, Giuffrida,

A randomized comparison of trapidil (triazolopyrimidine), a platelet-derived growth factor antagonist, versus aspirin in prevention of angiographic restenosis after coronary artery Palmaz-Schatz stent implantation.

The aim of the study is to assess the safety of trapidil in the setting of coronary stenting and to evaluate its efficacy in reducing angiographic in-stent restenosis. One hundred eighteen patients undergoing Palmaz-Schatz stent implantation were randomly assigned to receive antiplatelet therapy using either aspirin (325 mg/d) or trapidil (400 mg/d), in combination with ticlopidine (500 mg) for the first month. At entry, both groups were comparable with regard to clinical, angiographic, and procedural characteristics. At 6-month angiographic follow-up, >50% restenosis occurred in 15 of 52 lesions (28.8%) of the aspirin group and in 14 of 47 lesions (29.8%) of the trapidil group (P=not significant, NS). At 6-month clinical follow-up, there was no difference in the two groups in the rate of adverse events (2.0% vs. 2.1%, P=NS), medication side effects (4.0% vs. 4.2%, P=NS), and peripheral vascular complications (4.0% vs. 4.2%, P=NS). In conclusion, treatment with trapidil seems to be associated with a similar incidence of stent restenosis and adverse cardiac events as compared to aspirin and could be a valuable alternative to aspirin in the setting of coronary stenting.[1]

References

A randomized comparison of trapidil (triazolopyrimidine), a platelet-derived growth factor antagonist, versus aspirin in prevention of angiographic restenosis after coronary artery Palmaz-Schatz stent implantation. Galassi, A.R., Tamburino, C., Nicosia, A., Russo, G., Grassi, R., Monaco, A., Giuffrida, G. Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions. (1999) [Pubmed]

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