Lewicki A M, Brooks J R, Meguid M, Membreno A, Kia D
AJR Am J Roentgenol. 1978 Jan;130(1):43-5. doi: 10.2214/ajr.130.1.43.
Gastroesophageal reflux was tested for with a pH telemetry capsule. In 29 individuals in whom no hiatus hernia was demonstrated on barium esophagram, the transverse diameter of the intrahiatal esophagus was compared to that of the intrathoracic. When the width of the intrahiatal esophagus was two-thirds or less that of the intrathoracic, pH-proven reflux was an infrequent event. When wider, reflux occurred with high frequency.
采用pH遥测胶囊对胃食管反流进行检测。在29例经钡餐食管造影未显示食管裂孔疝的患者中，比较了食管裂孔内食管与胸段食管的横径。当食管裂孔内食管宽度为胸段食管宽度的三分之二或更小时，经pH证实的反流很少发生。当食管裂孔内食管宽度更大时，反流高频发生。
