Histological examination of an explanted right ventricular outflow tract stent revealed that in-stent stenosis is a zonal phenomenon, predominantly occurring proximally in the infundibulum.
Case Report (n=1)
No
Histological analysis of an explanted RVOT stent reveals that in-stent stenosis is a zonal phenomenon driven by chronic inflammation and neointimal formation where the stent embeds into the infundibulum.
The right ventricular outflow tract (RVOT) stenting is used for the treatment of Fallot-type lesions when not amenable to complete correction or when surgical palliation carries a substantial risk. Despite the increasing clinical application, there is a lack of data that describe the RVOT morphology after stenting. This article elucidates post-RVOT stenting and in-stent stenosis, which is thought to be a zonal phenomenon, in this case, predominantly occurring proximally, in the portion of the stent apposing the RVOT infundibulum.
Prabhu et al. (Tue,) conducted a case report in Tetralogy of Fallot (n=1). Right ventricular outflow tract (RVOT) stenting was evaluated on Histological morphology of RVOT after stenting and in-stent stenosis. Histological examination of an explanted right ventricular outflow tract stent revealed that in-stent stenosis is a zonal phenomenon, predominantly occurring proximally in the infundibulum.