[Risk factors affecting the surgical outcome of severe tracheal stenosis]

Objective:To investigate the risk factors affecting the surgical outcome of severe tracheal stenosis. Methods:The data of 36 patients with severe tracheal stenosis were analyzed retrospectively. All patients underwent tracheal stenosis resection with primary end-to-end anastomosis.Six factors including the location of tracheal stenosis, the length of resected trachea, the degree of stenosis, scar constitution, diabetes and gastroesophageal reflux disease were analyzed by univariate analysis and multivariate Logistic regression analysis. Results:Finally, 23 cases were extubated,including 19 cases with successful extubation and 4 cases with granulation tissue removed by bracing laryngoscope.Univariate analysis showed that the location of tracheal stenosis, the length of resected trachea,scar constitution, diabetes and gastroesophageal reflux disease were the risk factors affecting the surgical efficacy of severe tracheal stenosis.The multivariate Logistic regression coefficients of each factor were 2.857, 1.761, 3.123, -1.066, 3.545 respectively. Conclution: The risk factors affecting the outcome of severe tracheal decannulation rate were the location of tracheal stenosis, the length of resected trachea, scar constitution, diabetes and gastroesophageal reflux disease. Among them, the stenosis position, the length of the resected trachea, scar constitution and gastroesophageal reflux disease had more significant effects on the prognosis of the operation, and the comprehensive evaluation of these risk factors before operation was conducive to improve the surgical effect.