title: [Gradual coronary dilatation using double balloon catheters].
abstract: For the purpose of coronary angioplasty (PTCA) coronary stenoses over 80% usually can only be passed with very small catheters. We therefore developed an instrument with a very small tip-diameter and two balloons of different diameters arranged in line. In 9 cases primary success has been achieved and the degree of stenoses reduced from 89% to 22%. The gradient of 58 mm Hg was only 11 mm Hg after PTCA. When used with caution, the advantages of this catheter in high-degree coronary stenoses is obvious.
mesh_terms: D000800:Angioplasty, Balloon / Q000295:instrumentation*; D001794:Blood Pressure; D006328:Cardiac Catheterization / Q000295:instrumentation; D003327:Coronary Disease / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Stufenweise Koronardilatation mit Doppelballonkatheter.