Background: Coronary stents have revolutionised interventional cardiology,
providing a 'bail-out' option when angioplasty results are unsatisfactory,
and reducing the risk of restenosis. However, despite the results of random
ised trials, concerns have been expressed about whether stent insertion is
cost-effective in routine clinical practice.
Methods: The notes of 356 patients who underwent stent insertion in Oxford
between January 1996 and March 1997 were examined. Long-term follow-up info
rmation was obtained from questionnaires sent to general practitioners and
patients.
Results: The procedure was successful in 327 (92%) cases. Eighteen (5.1%) p
atients suffered a serious coronary complication, and 13 (3.7%) a bleeding
complication. Over the year following stent insertion, 238 (83%) of the 286
patients followed-up had suffered no coronary event, and 88% were in Canad
ian Cardiovascular Society (CCS) angina class II or below (slight limitatio
n of normal daily activity at worst).
Conclusion: Whilst the initial cost of stent insertion is considerably grea
ter than that of angioplasty alone, it reduces the need for high risk emerg
ency bypass surgery or redo percutaneous intervention. Stent insertion thus
represents a clear advantage for patients who have unsatisfactory angiopla
sties and may be a more cost-effective option.