J.Jpn. Surg. Soc.
ISSN 1880-1129

[Abstract] [Full Text PDF] （in Japanese / 1114KB） [Members Only And Two Factor Auth.]

J.Jpn. Surg. Soc.. 93(6): 578-588, 1992

Original article

CHNICAL STUDY ON RESPONSES OF THE UPPER ESOPHAGEAL SPHINCTER AFTER SUBTOTAL ESOPHAGECTOMY FOR ESOPHAGEAL CANCER

Second Department of Surgery, Osaka City University Medical School, Osaka, Japan

Taigo Tokuhara, Masayuki Higashino, Harushi Osugi, Noriaki Maekawa, Shinya Tanimura, Yosuke Fukunaga, Hiroaki Kinoshita

Responses of the upper esophageal sphincter（UES）to distention of the esophageal wall by use of a balloon catheter were measured in 30 patients after subtotal esophagectomy for esophageal cancer and 33 volunteers with unrelated disorders（control group）. Patients were divided into extended dissection group and non-extended dissection group according to the width of lymph node dissection, or palsy group and non-palsy group according to reccurent-laryngeal nerve palsy. The resting upper esophageal sphincter pressure（UESP）and the upper esophageal sphincter contraction（UESC）following UES induced by swallowing were measured after esophageal distention. Neither of UESP nor UESC without distention was significantly different among each group. But those of the extended dissection group and palsy group after esophageal distention were significantly lower values than those of control group. These findings suggest that responses of the UES to distention of esophageal wall are decreased, thus protection against aspiration is probably decreased.

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