Transradial approach for coronary procedures: initial experience and results.
BACKGROUND
Due to the recent miniaturization of angioplasty equipment, the transradial approach has gained favor as an alternative catheterization method for coronary procedures. The purpose of this study was to assess the practical clinical application of this method.


METHODS
Between June 1997 and February 1998, one operator (MG) attempted the percutaneous transradial approach in 185 consecutive unselected patients with functional radial arch attested using Allen's test. In this series of patients, 102 interventional procedures, balloon angioplasty including stent implantation, were performed with 6F or 7F guiding catheters.


RESULTS
Radial arterial punctures for diagnostic procedures were performed in 179 patients with a success rate of 97%. In the six failed transradial accesses, the procedure was performed via the transfemoral route. Balloon angioplasty was performed in 29 patients, 28% (33 lesions), PTCA and stent implantation were performed in 73 patients, 72% (80 lesions). Procedural success was achieved in 100 (98.2%). Two PTCA failed due to the impossibility of crossing a total occlusion. During hospitalization, one patient died of unstable angina and poor left ventricular function 7 days after stenting without stent occlusion at angiography. No major complications related to entry site were observed, and no patients required vascular surgery or blood transfusions.


CONCLUSIONS
This preliminary experience suggests that coronary procedures can be performed safely using the transradial approach. Access-site complications are virtually eliminated and early ambulation may result in a shortened hospital stay and lower hospital costs.
Cardiology Department S. Anna Hospital, Como.
M
M
Galli
S
S
Zerboni
A
A
Politi
R
R
Paone
G
G
Ferrari
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D002406:Catheterization, Peripheral / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D017023:Coronary Angiography / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000628:therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017534:Radial Artery; D012307:Risk Factors; D016896:Treatment Outcome