Collo D, Weihrauch T R, Förster C F
Laryngol Rhinol Otol (Stuttg). 1977 Dec;56(12):1003-7.
A new electronic equipment permits the measurement of the course of intraluminal esophageal pressures in patients before and after laryngectomy. The values obtained in all parts of the esophagus could be reproduced, thus proving the correctness of the measuring system. In patients with laryngectomy having a good compensatory esophageal voice the pressures in the lower esophageal sphincter doubled, when compared with those patients with laryngectomy which had little or no compensatory voice. The pressure in the area of the upper esophageal sphincter was reduced because of the laryngectomy, and the pressure in the area of the upper third of the esophagus was unchanged. There was no difference between the groups with good and with poor esophageal voice.
一种新型电子设备可测量喉切除术前、后患者的食管腔内压力变化过程。食管各部位测得的值均可重现，从而证明了测量系统的正确性。与代偿性食管发音较差或无代偿性发音的喉切除患者相比，代偿性食管发音良好的喉切除患者下食管括约肌压力增加了一倍。由于喉切除，上食管括约肌区域的压力降低，而食管上三分之一区域的压力未变。食管发音良好组与发音较差组之间无差异。
