Abstract
Although esophageal manometry is widely used in clinical practice, the normal range of esophageal contraction parameters is poorly defined. Therefore, 95 healthy volunteers (mean age: 43 years; range 22–79 years) were studied with a low-compliance infusion system and 4.5-mm-diameter catheter. All subjects were given 10 wet swallows (5 cc H2O) and 38 subjects also were given 10 dry swallows. Results: Amplitude, but not duration, was greater (P<0.05) after wet compared to dry swallows. Both distal mean contractile amplitude and duration of wet swallows significantly increased with age and peaked in the fifties. Double-peaked waves frequently occurred after both wet (11.3%) and dry (18.1%) swallows, but triple-peaked waves were rare (<1%). Nonperistaltic contractions were more common (P<0.001) after dry compared to wet swallows (18.1% vs 4.1%). This difference resulted from frequent simultaneous contractions after dry swallows (12.6% vs 0.4%). Conclusions: (1) Distal esophageal contractile amplitude and duration after wet swallows increases with age. (2) Triple-peaked waves and wet-swallow-induced simultaneous contractions should suggest an esophageal motility disorder. Double-peaked waves are a common variant of normal. (3) Dry swallows have little use in the current evaluation of esophageal peristalsis.
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Richter, J.E., Wu, W.C., Johns, D.N. et al. Esophageal manometry in 95 healthy adult volunteers. Digest Dis Sci 32, 583–592 (1987). https://doi.org/10.1007/BF01296157
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DOI: https://doi.org/10.1007/BF01296157