Key result
Longitudinal stent deformation was identified by IVUS in 1.6% of patients and 1.1% of lesions, most frequently presenting as intrastent wrinkling and overlapping near the proximal stent edge.
Why the study?
What is the prevalence and anatomical features of longitudinal stent deformation detected by IVUS post-stent implantation?
Cohort (n=1,057)
What is the prevalence and anatomical features of longitudinal stent deformation detected by IVUS post-stent implantation?
IVUS detects longitudinal stent deformation more frequently than angiography, occurring in 1.1% of stented lesions, particularly in ostial and left main locations.
IVUS may detect more longitudinal stent deformation than angiography in ostial or left main lesions; leaves open impact on outcomes and need for routine use.
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.
No takes yet. Share an insight, caveat, or question.
Inaba et al. (2014) conducted a cohort in Stent-treated lesions (n=1,057). Percutaneous coronary intervention with stent implantation was evaluated on Longitudinal stent deformation detected by IVUS. Longitudinal stent deformation was identified by IVUS in 1.6% of patients and 1.1% of lesions, most frequently presenting as intrastent wrinkling and overlapping near the proximal stent edge.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: