Long genuine coronary artery lesions treated with stiff tubular or flexible coiled stents. A randomized angiographic follow-up study.
OBJECTIVE
To investigate effects of stent flexibility on 6 months' clinical and angiographic outcome in long stented lesions.


METHODS
A total of 44 genuine coronary artery lesions (lesion length >20 mm and < or =30 mm) were randomized to implantation with a 30 mm long flexible coiled stainless steel stent (Freedom Force, Global Therapeutics) (n = 23) or a 30 mm long stiff tubular stainless steel stent (Crown, Johnson & Johnson) (n = 21).


RESULTS
Target vessel revascularization was performed in 10 patients (45%) in the Freedom Force stent group, and in 7 patients (33%) in the Crown stent group (ns). No significant differences concerning minimum lumen diameter (MLD), early gain, late loss or binary restenosis rate were seen. In the Freedom Force stent group all restenoses were located within the stent. In the Crown stent group three (27%) of the restenoses were located at the edge of the stent (ns).


CONCLUSIONS
In a limited number of patients no significant differences could be detected in clinical or angiographic parameters between patients treated with long tubular or long coiled stents.
Thuesen
Leif
L
Department of Cardiology, Skejby Sygehus, Aarhus University Hospitals, Aarhus, Denmark. leif.thuesen@iekf.au.dk
Andersen
Henning Rud
HR
Bagger
Henning
H
Bøtker
Hans Erik
HE
Dalsgaard
Dorthe
D
Kristensen
Steen Dalby
SD
Krusell
Lars Romer
LR
Munkholm
Henrik
H
D000368:Aged; D000787:Angina Pectoris / Q000000981:diagnostic imaging / Q000628:therapy*; D017023:Coronary Angiography; D023903:Coronary Restenosis / Q000000981:diagnostic imaging; D003331:Coronary Vessels; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D013193:Stainless Steel; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome
D013193:Stainless Steel