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  • Title: In-hospital outcome of percutaneous transluminal coronary angioplasty for long lesions and diffuse coronary artery disease.
    Author: Kaul U, Upasani PT, Agarwal R, Bahl VK, Wasir HS.
    Journal: Cathet Cardiovasc Diagn; 1995 Aug; 35(4):294-300. PubMed ID: 7497501.
    Abstract:
    We performed coronary angioplasty on 151 long or diffuse lesions (120 long and 31 diffuse) in 141 patients (86% male, mean age 50 +/- 9 years). Long lesions were defined as lesions 11-20 mm in length and diffuse lesions as lesions longer than 20 mm, or three or more lesions in the same vessel. One or more adverse morphologic features were present in 131 (93%) lesions. Long balloons were used in 44%, significantly more often for diffuse disease (long lesions 39% and diffuse disease 64%; P = 0.004). Newer devices including the rotational atherectomy device (9 lesions), stents and perfusion balloons were employed in 18 (12%) lesions, more often for diffuse lesions (long lesions 8% vs. diffuse lesions 26%; P = 0.017). Lesion severity was comparable in the two groups (long lesions: 88 +/- 7%; diffuse lesions: 88 +/- 8%), but diffuse lesions were associated with significantly higher residual stenosis (long lesions: 6 +/- 8%; diffuse lesions: 12 +/- 13%, P = 0.01). Major complications occurred in five (3.5%) patients, including one death (0.7% mortality). The angiographic and clinical success rates for all patients were 99% and 96%, respectively, and were comparable for long and diffuse lesions. Judicious case selection and the use of long balloons and newer interventional devices permit coronary angioplasty for long lesions and diffuse disease with excellent success and a low risk of complications. Diffuse lesions are associated with more frequent use of long balloons and newer devices, especially rotational atherectomy and slightly higher residual stenosis as compared to long lesions.
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