Luminal recovery from six to twelve months after implantation of "thicker strut" coronary stents.
A group of 50 patients with 51 de novo lesions treated with thicker strut stents (strut thickness >100 microm) was angiographically evaluated at baseline, after stenting, and at 6 and 12 months. Minimal luminal diameter (MLD) significantly increased from 6 to 12 months (6 months: 1.72 +/- 0.50 mm vs 12 months: 1.81 +/- 0.47 mm; p <0.01). The binary restenosis (diameter stenosis >50%) rate was 17% at 6 months and 11% at 12 months (p = NS). At multivariate analysis, lumen loss at 6 months (p = 0.018) and deployment pressure (p = 0.041) independently predicted the changes in MLD between 6 and 12 months.
Meireles
George C X
GC
Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil.
Lemos
Pedro A
PA
Ambrose
John A
JA
Ribeiro
Expedito
E
Horta
Pedro E
PE
Perin
Marco
M
Ramires
José A F
JA
Martinez
Eulógio E
EE
D017023:Coronary Angiography; D023903:Coronary Restenosis / Q000000981:diagnostic imaging; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015607:Stents; D013997:Time Factors