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The purpose of the present study was to evaluate the feasibility and efficacy of stenting following suboptimal percutaneous transluminal coronary angioplasty (PTCA) in angiographically small coronary arteries. The clinical and angiographic outcome of unplanned stenting in 33 patients with coronary arteries <2.5 mm in diameter was studied. Procedural success was achieved for 97.0% with a greater initial gain (1.79 +/- 0.60 vs. 1.34 +/- 0.58 mm, P < 0.05) and larger postprocedural minimal luminal diameter (2.19 +/- 0.43 vs. 1.57 +/- 0.57 mm, P < 0.001) than that in the size-matched elective PTCA patients. Trends toward a lower restenosis rate and a significant reduction in target lesion revascularization (7.1% vs. 41.9%, P < 0.01) were observed in the stented patients, suggesting the feasibility and efficacy of stenting following suboptimal PTCA in small coronary arteries. Cathet. Cardiovasc. Intervent. 47:269-276, 1999.
Kawagishi et al. (Thu,) studied this question.