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Late Incomplete Stent Apposition After Sirolimus-Eluting Stent Implantation

A Serial Intravascular Ultrasound Analysis

Junya Ako, MD^_*, Yoshihiro Morino, MD^_*, Yasuhiro Honda, MD, FACC^_*, Ali Hassan, MD^_*, Shinjo Sonoda, MD, PhD^_*, Paul G. Yock, MD, FACC^_*, Martin B. Leon, MD, FACC, Jeffrey W. Moses, MD, FACC, Heidi N. Bonneau, RN, MS and Peter J. Fitzgerald, MD, PhD, FACC^_*,_*

^_* Center for Research in Cardiovascular Interventions, Stanford University Medical Center, Stanford, California
Lenox Hill Hospital, New York, New York
Highlands Consulting Inc., San Jose, California.

View larger version (65K): [in a new window]   Figure 1 Intravascular ultrasound images of sirolimus-eluting stents with late incomplete stent apposition (A) after stent implantation and (B) at eight-month follow-up. The stent was well apposed to the vessel wall at the time of implantation.

View larger version (138K): [in a new window]   Figure 2 Longitudinal images showing late incomplete stent apposition after sirolimus-eluting stent implantation: (A) after stent implantation; (B) at eight-month follow-up. Detachment of the vessel wall (arrows) from stent strut (dotted lines) was observed in the mid portion of the stent and in the relatively normal side of the vessel wall.