[Tracheal stenosis after tracheotomy. Apropos of 12 cases in 227 observations].

Out of 543 tracheotomized patients, 227 survived and 12 of them developed a tracheal stenosis syndrome (5,28 p. 100) including: 3 supra-ostial stenosis, 1 ostial and supra-ostial stenosis, 1 ostial stenosis, 3 intermediate stenosis and 4 distal stenosis. In two cases, the stenosis was found out during the removal of the cannula and in the other cases from 3 days to 8 months after the decannulation. The deffered treatment consisted in an anti-inflammatory medical treatment treatment (one case), in a permanent dilation with an Albouker tube (two cases), and in a resection of the stenosed tracheal part plus an anastomosis. Good results were obtained in 9 cases including the recovery of a satisfactory tracheal diameter. Because of a recurrence of the stenosis after resection and anastomosis, it was necessary, in two cases, to resort to another resection and, upon another occasion, to place a permanent cannulation. Finally, in one case, 2 Rethi operations were necessary to get a sub-normal tracheal diameter. From these facts, it emerges that tracheal stenosis are less important if, during the tracheotomy, a partial resection of the tracheal wall is effected (rather than an inverted U flap folded back at the bottom) together with the putting in of a cannula equipped with an elongated cylindrical cuff requiring a less important filing-up pressure (although just as efficient as far as tightness is concerned).