Late stent malapposition occurring after intracoronary beta-irradiation detected by intravascular ultrasound.
We report a case of late stent malapposition occurring 6 months after intracoronary beta-irradiation detected by three-dimensional intravascular ultrasound, in spite of good apposition immediately after the procedure. Volumetric quantification revealed that stent volume remained unchanged, whereas total vessel volume increased by 13% after 6 months within the stent area. The increase of the vessel volume took place mainly in the proximal part of the stent, where the malapposition was located.
Kozuma
K
K
Department of Interventional Cardiology, University Hospital Dijkzigt-Thoraxcenter Bd-418, Dr. Molewaterplein 40, 3015 GD Rotterdam, The Netherlands.
Costa
M A
MA
Sabaté
M
M
Serrano
P
P
van der Giessen
W J
WJ
Ligthart
J M
JM
Coen
V L
VL
Levendag
P C
PC
Serruys
P W
PW
D015906:Angioplasty, Balloon, Coronary; D001610:Beta Particles; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects*; D023921:Coronary Stenosis / Q000628:therapy; D005548:Foreign-Body Migration / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D011878:Radiotherapy / Q000009:adverse effects*; D015607:Stents / Q000009:adverse effects*