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A consolidation of ideas regarding the pathogenesis and management of esophageal motor disorders occurred over the past year. The development and application of diagnostic techniques has stimulated new thinking about the events responsible for peristalsis and has provided novel avenues for studying mechanisms of symptom production. Achalasia remains the most investigated and understood motor disorder, and the year's research focused heavily on management approaches for this important condition. Other topics addressed in this review include proximal esophageal symptoms and disorders, spastic disorders, and esophageal hypomotility.
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Prakash et al. (1999) studied this question.
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