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The Annals of Thoracic Surgery, Vol 43, 550-553, Copyright © 1987 by The Society of Thoracic Surgeons
D Thomson, JP Shoenut, BG Trenholm and JM Teskey
Five patients with achalasia underwent limited myotomy without
fundoplication. Surgery reduced mean lower esophageal sphincter resting
pressure significantly (p less than .05) from 31 +/- 9.7 mm Hg to 16.1 +/-
8.2 mm Hg. Twenty-four-hour ambulatory esophageal pH studies demonstrated
that the percentage of time the pH in the distal esophagus was below 4 was
similar whether the patient was upright or supine (6.6 +/- 6.5% of total
time upright vs. 9.1 +/- 12.7% of total time). Reflux events that occur in
the supine position may be significant because of their prolonged duration
resulting from the absence of normal secondary peristalsis in the body of
the esophagus. Patients with achalasia who have undergone esophagomyotomy
without fundoplication do not appear to experience more reflux than control
subjects with normal esophageal function.
ARTICLES
Reflux patterns following limited myotomy without fundoplication for achalasia
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