title: Relief of pressure damping during coronary angioplasty: a device for creating side holes in PTCA guiding catheters.
abstract: Percutaneous coronary angioplasty guiding catheters occasionally wedge in the coronary orifice and obstruct blood flow, making completion of the balloon dilatation difficult. Side holes may be made in the catheter, but when created free-hand may not be ideal. This report describes a device for creating side holes of small size, with uniform shape, and without rough edges. The disadvantages of dye extravasation and loss of strength in the catheter are minimized.
authors.forename: K G
authors.initials: KG
authors.lastname: Chua
authors.forename: T
authors.initials: T
authors.lastname: Feldman
authors.forename: B
authors.initials: B
authors.lastname: Fromes
mesh_terms: D000787:Angina Pectoris / Q000517:prevention & control; D000800:Angioplasty, Balloon / Q000295:instrumentation*; D001794:Blood Pressure; D003326:Coronary Circulation; D003327:Coronary Disease / Q000628:therapy*; D006801:Humans