Portal de Periódicos da CAPES

Review of Hardware for PTCA

1988; Wiley; Volume: 1; Issue: 3 Linguagem: Inglês

10.1111/j.1540-8183.1988.tb00408.x

1540-8183

STEVEN W. WERNS, Eric J. Topol,

Cardiac Imaging and Diagnostics

There is a growing inventory of dilatation hardware at the disposal of the interventional cardiologist. The purpose of this review is to compare the distinguishing features of current and anticipated equipment which should be considered in the selection of hardware for performing coronary angioplasty (PTCA). New guiding catheters designed to improve “back‐up” support for difficult anatomic variants include the hockey stick, the El Gamal, the Arani, the FR 3.5 ALT, and the AL 0.75 and ALR 1.2 Amplatz models. New “micro” dilatation catheters include the Mini‐Profile and Skinny catheters, which combine independent wire movement and low profile shafts (3.5 F), and the Probe, which is currently the catheter with the lowest profile shaft (1.7 F) and balloon (0.020” for a 2.0‐mm diameter balloon). The low profile of the Probe allows it to be used alongside a conventional 4.3 F dilatation catheter within the new 9 F Giant Lumen guiding catheter, which has an internal diameter of 0.088″. The forthcoming “monorail” catheters will provide the operator with a low profile, “over‐the‐wire” system that can be exchanged for a different balloon size or a perfusion catheter without using an extension or exchange wire. Two innovations in guidewire technology are the Dilating Guide Wire (DGW) and the Buchbinder Om‐niflex catheter. The DGW features a 1.5‐mm diameter balloon with a deflated profile of 0.018” that can be accommodated within the Trac and Trac Plus series of dilatation catheters. The Buchbinder Omniflex catheter is designed so that the distal tip of the wire can be rotated and flexed via controls on the proximal hub of the catheter, permitting shaping of the tip without removal of the catheter. Selection of appropriate equipment from the vast array of PTCA hardware will allow the operator to minimize the cost and maximize both the safety and success of dilating a coronary stenosis. (J Interven Cardiol 1988:1:3)