Effect of secretin on lower esophageal sphincter pressure in patients with esophageal achalasia.
The effect of a bolus intravenous administration of secretin (2.0 U/kg) on resting lower esophageal sphincter pressure (LESP) was investigated in seven patients with esophageal achalasia. Basal LESP before secretin injection in the patients was 60.1 +/- 3.4 mmHg (Mean +/- SEM), which was significantly higher than 26.9 +/- 2.5 mmHg in normal controls consisting of eight healthy volunteers. LESP significantly decreased within 1 min after the injection both in the patients and the controls. The maximum pressure change from each basal LESP was 31.2 +/- 5.2 mmHg in the patients, which was significantly greater than 12.1 +/- 1.8 mmHg in the controls. The effect of secretin disappeared within 5 min in the controls. The effect in the patients, however, lasted throughout the investigation time of 30 min. It is concluded that secretin has a long-acting effect on muscular relaxation of the lower esophageal sphincter in esophageal achalsia patients.
Miyata
M
M
First Department of Surgery, Osaka University Medical School, Japan.
Sakamoto
T
T
Hashimoto
T
T
Nakamura
M
M
Sakaguchi
H
H
Kawashima
Y
Y
D000328:Adult; D004931:Esophageal Achalasia / Q000503:physiopathology*; D004943:Esophagogastric Junction / Q000187:drug effects / Q000502:physiology*; D005260:Female; D005755:Gastrins / Q000097:blood; D006801:Humans; D008297:Male; D011312:Pressure; D012633:Secretin / Q000502:physiology*; D013997:Time Factors
D005755:Gastrins; D012633:Secretin