Three-dimensional tracheal morphologic changes after left pulmonary artery sling repair with and without tracheoplasty.
K, M., T, O., H, M., H, S., T, Y., & S, W. (2026). Three-dimensional tracheal morphologic changes after left pulmonary artery sling repair with and without tracheoplasty.. Pediatric surgery international. https://doi.org/10.1007/s00383-026-06591-4
K M, T O, H M, H S, T Y, S W. Three-dimensional tracheal morphologic changes after left pulmonary artery sling repair with and without tracheoplasty.. Pediatric surgery international. 2026; doi: 10.1007/s00383-026-06591-4
K M, T O, H M, et al. Three-dimensional tracheal morphologic changes after left pulmonary artery sling repair with and without tracheoplasty.[J]. Pediatric surgery international. 2026. DOI: 10.1007/s00383-026-06591-4.
@article{k2026,
author = {Morita K and Otani T and Matsuhisa H and Suwa H and Yoshinaga T and Wada S},
title = {Three-dimensional tracheal morphologic changes after left pulmonary artery sling repair with and without tracheoplasty.},
journal = {Pediatric surgery international},
year = {2026},
doi = {10.1007/s00383-026-06591-4},
note = {PMID: 42663739},
}
TY - JOUR AU - Morita K AU - Otani T AU - Matsuhisa H AU - Suwa H AU - Yoshinaga T AU - Wada S TI - Three-dimensional tracheal morphologic changes after left pulmonary artery sling repair with and without tracheoplasty. T2 - Pediatric surgery international PY - 2026 DO - 10.1007/s00383-026-06591-4 AN - PMID:42663739 ER -
PURPOSE: In patients with a left pulmonary artery sling (LPAS) and congenital tracheal stenosis, indications for simultaneous slide tracheoplasty remain controversial. This study quantified three-dimensional tracheal morphologic changes after LPAS repair with and without slide tracheoplasty to provide insights into establishing surgical indications. METHODS: Airway geometries were reconstructed from pre- and postoperative computed tomography scans in 13 patients (10 with tracheoplasty, three with LPAS repair alone), measuring equivalent diameter and geometry-based flow resistance in a 30-mm segment proximal to the carina. All results are expressed as median [range]. RESULTS: The tracheoplasty group showed significant pericarinal enlargement (3.3 [2.4-4.1] to 5.2 [4.2-6.7] mm; P = 0.002) and a marked decrease in resistance estimates (2.30 [0.83-9.6] to 0.39 [0.11-1.88] cmH2O/(L/s); P = 0.004). In the LPAS repair alone group, two patients exhibited low preoperative resistance estimates (0.92 and 1.52 cmH2O/(L/s)), comparable to postoperative values in the tracheoplasty group. CONCLUSION: Slide tracheoplasty provides substantial morphologic and functional improvements, but certain patients achieve acceptable airway resistance with LPAS repair alone. Computational flow resistance may represent a useful tool for visualizing or quantifying the effects of surgical intervention.