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Title

A PROPOSED GRADING SYSTEM FOR POST-INTUBATION TRACHEAL STENOSIS

Pages

  10-14

Abstract

 Background: Tracheal stenosis is still a serious consequence of endotracheal intubation. Previous CLASSIFICATION SYSTEMs are commonly descriptive and are not intended to deal with management approach. The aim of this study was to present a CLASSIFICATION SYSTEM for post intubation tracheal stenosis and evaluate its efficacy in distinguishing critically ill patients who need surgical intervention.Materials and Methods: This CLASSIFICATION SYSTEM was developed based on size and type of stenosis and associated clinical signs and symptoms. Stenosis was graded based on the results of clinical examination and rigid bronchoscopy. All patients received surgical or conservative treatment based on the judgment of a surgeon experienced in management of post-intubation tracheal stenosis without considering their score. ROC curve analysis was done and cut-off point was established based on the greatest Youden index.Results: Sixty patients were studied. Resection and anastomosis were done for 49 patients. The mean score for all samples was 9.18 (range 8.77-9.45). Chosen cutoff point was 8.5 and calculated sensitivity and specificity were 89% and 42%, respectively. Positive and negative predictive values were 83.7% and 54.5%, respectively. A reasonable agreement between the estimated score and surgeon’s clinical judgment (kappa=0.78) was observed. A statistically significant relationship was observed between scores greater than 8.5 and need for surgical intervention (P=0.007).Conclusion: We presented a scoring system for post-intubation and TRACHEOSTOMY tracheal stenosis using main factors influencing diagnosis and treatment and its efficacy was evaluated prospectively. It seems that this system would be capable of assimilating the treatment interventions and comparing them.

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