[Evaluation of the systematic use of wide lumen 6 French guiding catheters in conventional coronary angioplasty].

The aim of this study was to evaluate the results of systematic use of 6 French guiding catheters in conventional balloon coronary angioplasty without any restriction of indications apart from coronary lesions necessitating other techniques such as atherectomy. Therefore, after a learning period, 200 consecutive procedures performed between November 1993 and June 1994 for the treatment of 234 lesions were analysed prospectively. Fifty-one patients had stable and 70 unstable angina. In 79 cases, the angioplasty was performed on the culprit lesion of a myocardial infarction. An angiographic success was obtained for 206 lesions or 88% of cases which increased to 95% after exclusion of attempted recanalisation. There were 3 cases of damage to the ostium and 7 patients underwent implantation of a stent with the same catheter for occlusive or threatening dissection. There were 10 ischaemic complications (5%) (7 non-Q wave infarctions, 2 Q wave infarctions, 1 aorto-coronary bypass, no deaths) and 8 local complications at the site of arterial catheterisation during the hospital period. These results demonstrate the feasibility of coronary angioplasty with wide lumen 6 French guiding catheters and show that they amy be used in first intention for all conventional balloon angioplasty procedures.