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Prevalence and anatomical features of acute longitudinal stent deformation: An intravascular ultrasound study
Author(s) -
Inaba Shinji,
Weisz Giora,
Kobayashi Nobuaki,
Saito Shigeo,
Dohi Tomotaka,
Dong Liang,
Wang Lin,
Moran Joyce A.,
Rabbani LeRoy E.,
Parikh Manish A.,
Leon Martin B.,
Moses Jeffrey W.,
Mintz Gary S.,
Maehara Akiko
Publication year - 2014
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.25411
Subject(s) - intravascular ultrasound , stent , medicine , percutaneous coronary intervention , radiology , deformation (meteorology) , angiography , coronary angiography , cardiology , myocardial infarction , physics , meteorology
Objectives We report the prevalence and anatomical features of longitudinal stent deformation as detected by intravascular ultrasound (IVUS) Background Angiographic studies have recently reported longitudinal stent deformation as a mechanical complication occurring during percutaneous coronary intervention; however, there are no IVUS studies on this phenomenon Methods We retrospectively analyzed 1,489 consecutive stent‐treated lesions in 1,057 patients who underwent IVUS post‐stent implantation Results Seventeen longitudinal stent deformations in 17 lesions (1.1% per lesion) in 17 patients (1.6% per patient) were identified by IVUS. Of the 17 IVUS‐detected deformations, only three deformations (17.6%) were detectable by angiography. By IVUS, there were three patterns of longitudinal stent deformation: (1) Deformation with intra‐stent wrinkling and overlapping of the proximal and distal stent fragments within a single stent ( n = 14), (2) deformation with elongation ( n = 2), and (3) deformation with shortening ( n = 1). Most of the deformations were located near to the proximal stent edge (88%), consistent with the finding that they were observed in 11 ostial (65%) and eight left main lesions (47%), and 8.3% of 96 left main stented lesions had evidence of deformation Conclusions By IVUS, longitudinal stent deformation during percutaneous coronary intervention was seen more frequently than in previous studies; however, it is still uncommon (1.1%) except in the left main location. The most frequent pattern was intrastent wrinkling and overlapping of the proximal and distal stent fragments. © 2014 Wiley Periodicals, Inc.