Jae Gun Kwak

OBJECTIVES We aimed to review the outcomes of treating incidentally encountered asymptomatic airway stenosis during open-heart surgery conservatively without the use of tracheoplasty. METHODS Between January 2002 and October 2022, 25 patients were incidentally diagnosed with tracheal stenosis during open-heart surgery. Intraoperative bronchoscopy and/or laryngoscopy revealed tracheal stenosis; however, this was not consistent with the findings of the preoperative computed tomography. Patients who were diagnosed with a pulmonary artery or vascular sling or had moderate-to-severe respiratory symptoms before open-heart surgery were excluded. RESULTS The median age and weight of the patients at operation were 3.0 months and 5.1 kg, respectively. They were categorized as those having tracheal stenosis on preoperative computed tomography (n = 12) or not having tracheal stenosis (n = 13). The narrowest diameter was significantly smaller in the former group (3.0 vs 5.8 mm, P < 0.05). The rates of reintubation and the tracheostomy, and intubation days tended to be higher in former group without statistical significance. Stenotic degree improved 2 months and 1 year or more after the operation (39.3% at operation, 28.4% at 2 months, 12.5% after 1 year). All patients were Ross class 1 or 2 at follow-up (mean, 7.1 years). CONCLUSIONS Patients with tracheal stenosis showed tolerable long-term outcomes without using tracheoplasty. Accordingly, if tracheal stenosis, that would cause intubation difficulty, was incidentally revealed, concomitant tracheoplasty may not be required during open-heart surgery if the stenosis did not cause considerable symptoms or signs preoperatively.