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The Gastrointestinal Motility, Esophageal, and Swallowing Disorders Center

The Motility Center is a specialized center of excellence located within the Division of Gastroenterology & Hepatology of Dartmouth-Hitchcock Medical Center. The center is staffed by physicians, advanced practice providers, nurses, and research assistants who have specialized training in the evaluation, diagnosis, and treatment of patients with motility disorders.

Motility disorders may be defined as disorders of the gastrointestinal tract in which the muscle and nerves do not function correctly. Motility disorders are quite common, affect women and men of all ages, and are diagnosed in people of all ages, nationalities, and races. Although the Motility Center has extensive experience in diagnosing and treating all varieties of motility disorders, some of the most common motility disorders referred for evaluation include:

  • achalasia
  • dysphagia (difficulty swallowing)
  • gastroesophageal reflux disease (GERD)
  • dyspepsia
  • gastroparesis
  • constipation
  • diarrhea
  • irritable bowel syndrome
  • chronic intestinal pseudo-obstruction
  • fecal incontinence
  • pelvic floor dysfunction (also called pelvic floor dyssynergia)

The Motility Center is equipped to evaluate and diagnose patients with suspected motility disorders using a number of different specialized tests. These tests include:

  • measurement of esophageal pH using the Bravo capsule
  • measurement of esophageal reflux using combined pH/impedance
  • measurement of esophageal function using esophageal manometry
  • assessment of gastric (stomach) function using gastric emptying scans
  • evaluation for bacterial overgrowth using hydrogen and methane breath tests
  • assessment of colon transit using sitz marker studies
  • assessment of pelvic floor function using 3D high-definition anorectal manometry, balloon expulsion testing, and magnetic resonance (MRI) defecography

Meet our director

Eric D. Shah, Dartmouth-Hitchcock Gastroenterology and Hepatology provider.

Eric D. Shah, MD, MBA

Gastroenterology and Hepatology

I like to listen to each patient's needs and values. Together, we can develop a shared strategy to improve health that takes advantage of the resources available from an expert, multidisci…
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