The use of tracheoesophageal voice prostheses has gained wide acceptance in
the field of vocal rehabilitation after total laryngectomy. In a randomize
d study with 3 arms, alaryngeal speech proficiency was assessed in 60 postl
aryngectomy patients: 20 patients underwent primary unilateral pharyngeal m
yotomy, 21 patients underwent neurectomy of the pharyngeal plexus in additi
on to pharyngeal myotomy, and 19 patients did not undergo an additional sur
gical procedure. Pharyngoesophageal (PE) dynamics were examined during esop
hageal and tracheoesophageal speech. A single vibrating PE segment was seen
in good alaryngeal speakers. Hypertonicity, spasm, strictures, and hypoton
icity of the PE segment were correlated significantly with poor or moderate
alaryngeal speech. Unilateral myotomy with or without unilateral neurectom
y prevented hypertonicity or spasm of the PE segment. The acquisition of al
aryngeal speech did not differ significantly between the 2 groups who had u
ndergone an additional surgical procedure. Evaluation of anatomic and physi
ological factors may be helpful in subsequent clinical management to achiev
e effective alaryngeal speech.