Abstract
The high incidence of dysphagia in patients with symptomatic gastroesophageal reflux (GER) but no evidence of peptic stricture suggests esophageal motor dysfunction. Conventional methods for detecting dysfunction (radiologic and manometric examinations) often fail to detect abnormality in these patients. Radionuclide transit (RT), a new method for detecting esophageal motor dysfunction, was used to prospectively assess function in 29 patients with symptomatic GER uncomplicated by stricture before and three months after antireflux surgery (HILL). The preoperative incidence of dysphagia and esophageal dysfunction was 73% and 52%, respectively. During operation (Hill repair), intraoperative measurement of the lower esophageal sphincter pressure was performed and the LESP raised to levels between 45 and 55 mmHg. The preoperative lower esophageal sphincter pressure was raised from a mean of 8.6 mmHg, to mean of 18.5 mmHg after operation. No patient has free reflux after operation. Postoperative studies on 20 patients demonstrated persistence of all preoperative esophageal dysfunction despite loss of dysphagia. RT has demonstrated a disorder of esophageal motor function in 52% of patients with symptomatic GER that may be responsible for impaired esophageal clearance. This abnormality is not contraindication to surgery. The results indicate that construction of an effective barrier to reflex corrects symptoms of reflux, even in the presence of impaired esophageal transit. Radionuclide transit is a safe noninvasive test for assessment of esophageal function.
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Selected References
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