Comparison of Early Recoil after Coronary Excimer Laser Angioplasty with and without Adjunctive Balloon Dilatation

Autor: Herbert J. Geschwind, Fumitaka Nakamura, Jan Kvasnicka
Rok vydání: 1994
Předmět:
Zdroj: Journal of Interventional Cardiology. 7:221-228
ISSN: 1540-8183
0896-4327
DOI: 10.1111/j.1540-8183.1994.tb00449.x
Popis: The immediate and early angiographic results in lesions treated solely with percutaneous coronary excimer laser angioplasty were compared with those obtained after combined laser and balloon angioplasty to determine whether early recoil may occur after coronary excimer laser angioplasty. The excimer laser was operated at 308 nm, 25 Hz, 40–60 mJ/mm2/pulse and 135 nsec/pulse and coupled onto multifiber wire-guided catheters of 1.4- to 2.0-mm diameter. Thirty-five consecutive patients (32 men and 3 women; mean age 56 ± 8 years) were studied. Ten patients were treated with laser angioplasty alone (group I), and 25 patients were treated using laser angioplasty followed by balloon dilatation (group II). In group I, the minimal luminal diameter increased from 1.89 ± 0.50 mm immediately after the procedure to 2.17 ± 0.51 mm at the early follow-up (P < 0.01), whereas in group II, the minimal luminal diameter decreased from 1.89 ± 0.45 mm to 1.50 ± 0.60 mm (P < 0.005). At the early follow-up, the minimal luminal diameter of group II was significantly smaller than that of group I (1.50 ± 0.60 vs 2.17 ± 0.51 mm; P < 0.05). These data demonstrate that coronary excimer laser angioplasty alone results in less severe early recoil than adjunctive balloon angioplasty. (J Interven Cardiol 1994; 7:221–228)
Databáze: OpenAIRE
Externí odkaz: