Vibratory Source and Mechanism in Tracheojejunal Phonation.

Relationship between quality of life instruments and phonatory function in tracheoesophageal speech with voice prosthesis

“…Additionally, voice pitch and intensity change depending on whether there has been reconstruction. In prior studies, the minimal vibration pressure for comfortable speech by tracheoesophageal fistula was approximately 30 mmHg [27,28], almost twice the value for speech by tracheojejunal fistula, which was approximately 16.2 mmHg [29]. Additionally, the average rates of expiratory flow in speech by tracheoesophageal and tracheojejunal fistula were 105.5 ml/s [27,28] and 129.6 ml/s [28], respectively.…”