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Eur J Cardiothorac Surg 2003;23:179-186
© 2003 Elsevier Science NL

Coronary artery bypass grafting (CABG) after initially successful percutaneous transluminal coronary angioplasty (PTCA): a review of 17 years experience

The University of Sydney, Cardiothoracic Surgical Unit, Royal Prince Alfred Hospital, The Baird Institute for Heart and Lung Surgical Research, Sydney, NSW, Australia

Received 20 August 2002; received in revised form 13 November 2002; accepted 17 November 2002.

* Corresponding author. The Cardiothoracic Surgical Unit, Level 8, Page Chest Pavilion, Royal Prince Alfred Hospital, Missenden Road, Camperdown, NSW 2050, Australia. Tel.: +61-2-9515-8629; fax: +61-2-9515-6378
e-mail: cfh{at}cts.rpa.cs.nsw.gov.au

Objective: Patients who undergo successful percutaneous transluminal coronary angioplasty (PTCA) may subsequently require operative myocardial revascularization. This review examines whether prior successful PTCA alters outcomes following subsequent coronary artery bypass grafting (CABG). The costs of interventional cardiology procedures and definitive surgery were also examined. Methods: From January 1981 through December 1997, 361 patients underwent CABG following initially successful PTCA (interval group). This group was compared with 11 909 patients who underwent CABG as the primary intervention for coronary artery disease (control group). Results: The average time interval to CABG following initial PTCA was 13.7 months. The post-CABG myocardial infarction rate was 4% for patients in the interval group and 3% for patients in the control group. The 30-day mortality was similar for both patient groups (2%). For the interval group, the average cost of total interventional management was $24 220 per patient. This included average costs of $13 873 for CABG and $10 347 for all preoperative interventional cardiology procedures. Conclusion: There is little doubt that PTCA procedures may provide successful myocardial revascularization. However, these procedures often need to be repeated over time and may serve only to delay coronary surgery, at substantial financial and personal cost.

Key Words: Interval • Coronary artery bypass grafting • Percutaneous transluminal coronary angioplasty

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