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Late distortion of the original Palmaz stent implanted in postoperative lesions associated with congenital heart disease
Author(s) -
Tomita Hideshi,
Yazaki Satoshi,
Echigo Shigeyuki,
Kimura Kohji,
Takamuro Motoki,
Horita Norihisa,
Fuse Shigeto,
Tsutsumi Hiroyuki
Publication year - 2005
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/ccd.20374
Subject(s) - medicine , stent , stenosis , radiology , superior vena cava , surgery , ascending aorta , aorta
The objective of this study was to report late distortion of a Palmaz stent. Late distortion of an original Palmaz stent, implanted in an extracardiac lesion, is rare. We completed a 1‐year follow‐up of 54 patients who had been implanted with 80 Palmaz stents in extracardiac lesions. Distortion of two stents was detected in two patients. For case 1, we implanted a P188 stent for supravalvar pulmonary stenosis complicating an arterial switch operation in a 14‐year‐old girl. Seven months later, we found compression of the stent. Although we implanted two P308 stents anterior to the distorted stent, distortion of both stents developed after 1 month. Two more P308 stents placed inside each stent were gradually recompressed. A CAT scan showed compression of the stent by a dilated sinus of valsalva. For case 2, we implanted a P308 stent for stenosis of the superior vena cava after Williams operation in an 11‐year‐old boy. A chest X‐ray documented longitudinal compression of the stent 27 months after implantation and a CAT scan showed the ascending aorta was in contact with the stent. A Palmaz stent may be distorted when implanted in a lesion adjacent to a pulsating aorta. © 2005 Wiley‐Liss, Inc.