Endothelial progenitor cell capture stent implantation in patients with ST-segment elevation acute myocardial infarction: one year follow-up.
OBJECTIVE
The Genous endothelial progenitor cell (EPC) capture stent is a bioengineered R stent coated with immobilised antibodies on its stent struts to allow for the capture of circulating EPCs to promote rapid endothelisation. We assessed the impact of this stent in the primary percutaneous coronary intervention (PCI) of patients with acute ST-elevation myocardial infarction (STEMI) and examined its long term clinical outcomes.


RESULTS
All patients with acute STEMI without cardiogenic shock who underwent primary PCI between January 2005 and April 2007 and received the stent were enrolled in the study. The study endpoints were major adverse cardiac events (MACE) defined as death, MI and target vessel revascularisation (TVR) at 30 days, six months and one year. A total of 321 enrolled patients received 357 EPC capture stents during the study period. The cohort comprises 81.0% males with mean age of 54.6+/-11.6 years. The mean stent length used was 20.98+/-5.50 mm and mean stent size was 2.99+/-0.32 mm. Ninety-four percent of patients achieved Thrombolysis in Myocardial Infarction (TIMI) 3 flow post-procedurally. The cumulative MACE rate was 8.1% at 30 days, 10.0% at six months and 12.2% at one year. There was one patient who developed acute stent thrombosis and another two with subacute stent thromboses. No late thrombosis or late cardiac mortality was observed in our cohort. The need for TVR was 4.4% at one year.


CONCLUSIONS
The use of EPC capture stents in patients who underwent primary PCI for STEMI is safe and showed good clinical outcomes, with low rates of TVR and no late stent thrombosis.
National University Hospital, Singapore.
Yian-Ping
YP
Lee
Edgar
E
Tay
Chi Hang
CH
Lee
Adrian
A
Low
Swee Guan
SG
Teo
Kian Keong
KK
Poh
Wee-Tiong
WT
Yeo
Jimmy
J
Lim
Ing Han
IH
Lim
Yean Teng
YT
Lim
Huay Cheem
HC
Tan
D015906:Angioplasty, Balloon, Coronary / Q000379:methods*; D057005:Bioengineering; D020099:Coated Materials, Biocompatible; D017023:Coronary Angiography; D023903:Coronary Restenosis / Q000517:prevention & control; D004562:Electrocardiography; D042783:Endothelial Cells / Q000166:cytology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D011446:Prospective Studies; D011474:Prosthesis Design; D013234:Stem Cells; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome
D020099:Coated Materials, Biocompatible