RT Journal Article T1 Tracheal Self-Expandable Metallic Stents: A Comparative Study of Three Different Stents in a Rabbit Model. A1 Serrano, Carolina A1 Lostalé, Fernando A1 Rodríguez-Panadero, Francisco A1 Blas, Ignacio de A1 Laborda, Alicia A1 de Gregorio, Miguel Angel K1 Airway obstruction K1 Animal models K1 Drug-eluting stents K1 Estenosis traqueal K1 Experimentación animal K1 Obstrucción de la vía aérea K1 Stents K1 Stents liberadores de fármacos K1 Tracheal stenosis AB The objective of this study was to assess tracheal reactivity after the deployment of different self-expandable metal stents (SEMS). Forty female New Zealand rabbits were divided into four groups. Three groups received three different SEMS: steel (ST), nitinol (NiTi), or nitinol drug-eluting stent (DES); the fourth group was the control group (no stent). Stents were deployed percutaneously under fluoroscopic guidance. Animals were assessed by multi-slice, computed tomography (CT) scans, and tracheas were collected for anatomical pathology (AP) study. Data from CT and AP were statistically analyzed and correlated. The DES group had the longest stenosis (20.51±14.08mm vs. 5.84±12.43 and 6.57±6.54mm in NiTi and ST, respectively, day 30; P The ST group developed granulomas and significant stenosis. NiTi was the least reactive stent, while DES caused significant lesions that may be related to drug dosage. This type of DES stent is therefore not recommended for the treatment of tracheobronchial stenosis. YR 2015 FD 2015-07-02 LK https://hdl.handle.net/10668/27466 UL https://hdl.handle.net/10668/27466 LA en LA es DS RISalud RD Apr 12, 2025