Rotational coronary atherectomy with adjunctive balloon angioplasty: Evaluation of lumen enlargement by quantitative angiographic analysis - 10/09/11
From the Department of Interventional Cardiology, Centre Médico-Chirurgical Parly-Grand Chesnay.
Abstract |
To evaluate the mechanisms of lumen enlargement and the respective contributions of rotational coronary atherectomy (RA) and adjunctive percutaneous transluminal coronary balloon angioplasty (PTCA), serial measurements were recorded in 70 consecutive patients by quantitative coronary angiography before RA, after RA, after adjunctive PTCA, and 24 hours later. Minimal luminal diameter (MLD) increased from 0.85 ± 0.31 mm to 1.42 ± 0.27 mm (p < 0.001) after RA and to 2.20 ± 0.46 mm (p < 0.001) after PTCA. Minimal luminal area (MLA) increased from 0.64 ± 0.50 mm 2 to 1.63 ± 0.60 mm 2 (p < 0.001) after RA and to 3.97 ± 1.68 mm 2 (p < 0.001) after PTCA. Both 24-hour MLD and MLA showed a trend toward reduced values (2.07 ± 0.45 mm and 3.52 ± 1.70 mm 2 , respectively) when compared with immediate results after PTCA. The absolute gains in MLD after RA and after PTCA were 0.56 ± 0.24 mm and 0.79 ± 0.38 mm, respectively (p < 0.01). The absolute gains in MLA after RA and after PTCA were 0.99 ± 0.49 mm 2 and 2.34 ± 1.41 mm 2 , respectively (p < 0.001). The respective contributions of RA and PTCA are highly variable, but in general, balloon dilatation accounts for most of the gain in lumen area and therefore is not an adjunctive but a primary technique. (Am Heart J 1997;133:203-9.)
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 | Reprint requests: Thierry Corcos, MD, Department of Interventional Cardiology, Centre Medico-Chirurgical Parly-Grand Chesnay, 21 rue Moxouris, 78150 Le Chesnay, France. |
| 4/1/77770 |
Vol 133 - N° 2
P. 203-209 - février 1997 Retour au numéro
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