Rt. Van Domburg et al., Long term outcome after coronary stent implantation: a 10 year single centre experience of 1000 patients, HEART, 82, 1999, pp. 27-34
Citations number
35
Categorie Soggetti
Cardiovascular & Respiratory Systems","Cardiovascular & Hematology Research
Objective-To describe the long term clinical outcome (up to 11 years) after
coronary stenting.
Design-A single centre observational study encompassing 1000 consecutive pa
tients with a first stent implantation (1560 stents) between 1986 and 1996,
who were followed for at least one year with a median follow up of 29 mont
hs (range 12-132 months).
Results-Up to July 1997 the cumulative incidence of the major adverse cardi
ac events (MACE) of death, non-fatal acute myocardial infarction, coronary
artery bypass grafting, and repeat percutaneous transluminal coronary angio
plasty was 8.2%, 12.8%, 13.1%, and 22.4%, respectively. Survival at one, th
ree, and five years was 95%, 91%, and 86%, respectively. Comparison of MACE
incidence during the ((anticoagulant era)) and the ((ticlopidine era)) rev
ealed significantly improved event free survival with ticlopidine (27% v 13
%; p < 0.005). Multivariable analyses showed that ejection fraction < 50% (
relative risk (RR) 4.1), multivessel disease (RR 3.0), diabetes (RR 2.9), i
mplantation in saphenous vein graft (RR 2.1), indication for unstable angin
a (RR 1.9), and female sex (RR 1.7) were independent predictors of increase
d mortality after stenting. Independent predictors of any IMAGE were multiv
essel stenting (RR 2.0), implantation in saphenous bypass graft (RR 1.6), d
iabetes (RR 1.5), anticoagulant treatment (versus ticlopidine and aspirin)
(RR 1.5), bailout stenting (RR 1.5), multivessel disease (RR 1.4), and mult
iple stent implantation (RR 1.5).
Conclusions-Long term survival and infarct free survival was good, particul
arly in non-diabetic men with single vessel disease and good ventricular fu
nction, who had a single stent implanted in a native coronary artery. A dra
matic improvement was observed in event free survival, both early and late,
with the replacement of anticoagulation by ticlopidine. This, of course, c
annot be separated from improved stent implantation techniques between 1986
and 1995. Ultimately, almost 40% of the patients experienced an adverse ca
rdiac event (mainly repeat intervention) in the long term. New advances in
restenosis treatments and in secondary prevention must be directed at this
aspect of patient management after stenting.