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The Cardiothoracic Surgeon

Table 2 Degree of tracheal stenosis in the studied patients according to Freitag classification [9]

From: Balloon tracheoplasty for tracheal stenosis after prolonged intubation: a simple procedure, but is it effective?

Number of patients

% Degree of tracheal stenosis

5 (12.5%)

9 (22.5%)

14 (35%)

12 (30%)

0

Grade 1: < 25%

Grade 2: 26–50%

Grade 3: 51–75%

Grade 4: 76–90%

Grade 5: 90–100%

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