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Feasibility of transradial coronary angiography
and angioplasty in Chinese patients
TS Tse, KKH Lam, KL Tsui,
CK Chan, GTC Leung, MC Choi, WC Ko, KK Chan, SK Li
Department of Medicine, Pamela Youde Nethersole Eastern Hospital,
3 Lok Man Road, Chai Wan, Hong Kong
OBJECTIVE. To assess the clinical applicability,
efficacy, and safety of coronary angiography and angioplasty via
a transradial approach in local Chinese patients.
DESIGN. Prospective case series.
SETTING. Regional hospital, Hong Kong.
PATIENTS. All patients undergoing coronary angiography
and coronary angioplasty between 1 January and 30 June 2004.
INTERVENTIONS. Transradial coronary angiography
and coronary angioplasty.
MAIN OUTCOME MEASURES. Feasibility, success rate,
and complications.
RESULTS. A total of 268 coronary angiographies (62%
of all coronary angiographies) and 118 coronary angioplasties (48%
of all coronary angioplasties) were performed via a transradial
approach. The procedural success rate for coronary angiography was
93.7% with a mean duration of 21.8 (standard deviation, 13.5) minutes
compared with 17.9 (10.0) minutes for angiography via a femoral
approach. Most (99%) patients were free from any complications.
Of
those patients who underwent elective transradial coronary angiography
in the morning, 64% were discharged on the same day. Comparison
of data in the first half of the study period with those in the
second half revealed a significant
increase in the percentage of coronary angiographies performed via
a transradial approach (from 52% to 73%, P<0.0001), and an improved
procedural success rate (from 91.5% to 95.3%, P=0.1). For transradial
coronary angioplasty, the procedural success rate was 98%. A total
of 246 lesions (2.08 lesions per patient) were treated with no procedure-related
complications.
CONCLUSIONS. Transradial coronary angiography and
angioplasty are feasible in a significant proportion of local Chinese
patients and achieve a high success rate and low complication rate.
It tends to prolong procedural duration, but improves patients’
comfort and permits earlier ambulation and discharge. The procedural
success rate improves with accumulating experience.
Hong Kong Med J 2006;12:108-14
Key words: Angioplasty, transluminal, percutaneous
coronary; Coronary angiography; Radial artery; Stents
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