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Drexel Center for Motility Disorders

Illustration of Motility Disorders

Drexel Center for Motility Disorders Specialize in:

  • Constipation
  • Dysphagia
  • Fecal incontinence
  • Gastroparesis
  • GERD
  • Pelvic/anorectal pain
  • Laryngopharyngeal reflux (LPR)

High Resolution Esophageal Manometry

This sophisticated test measures esophageal pressures and its ability to contract.

High Resolution Esophageal Manometry Esophageal manometry is essential for the diagnosis and evaluation of swallowing problems due to esophageal motility disorders including: achalasia, acid reflux, nutcracker’s esophagus and esophageal spasms.

Performed in an outpatient office after a morning fast, this test requires a thin catheter inserted through the nose and down the esophagus. The entire study is usually completed within 30 minutes and does not require sedation.

Indications for this test include: difficulty swallowing (dysphagia), noncardiac chest pains, hoarseness, regurgitation and persistent acid reflux.

Bravo pH Study

Bravo pH study is a valuable wireless test for the diagnoses of gastroesophageal reflux.


To schedule an expedited motility consultation or to directly schedule a motility test, call 215.762.5052.

Performed in an endoscopy center with the use of anesthesia, a small capsule is attached to the lining of the esophagus during an upper endoscopy.

Signals are transmitted wirelessly to a monitor that records episodes of acid reflux for 48 hours.


The SmartPill test measures pH, pressure, temperature and transit time throughout the entire GI tract.

This test is performed in an ambulatory office after an overnight fast. The patient swallows a small capsule that travels throughout the GI tract. Signals are transmitted to a small monitor that records pH and pressure patterns for up to five days.

The SmartPill is useful in the diagnosis of gastrointestinal motility disorders such as gastroparesis and colonic inertia.

24 Hour pH Impedance Testing

24 Hour pH Impedance Testing Impedance testing provides an improved level of gastroesophageal pH monitoring for the diagnosis and management of both acid and non-acid reflux related disorders.

Performed in our office, this test requires a thin catheter inserted through the nose and down into the esophagus. The catheter stays in place for 24 hours. A small monitor records reflux events that occur during this period. Patients are usually instructed to stay on proton pump inhibitors (antireflux medications).

Indications for this test include: refractory heartburn, cough, regurgitation, non-cardiac chest pain and atypical gastroesophageal reflux symptoms.

3-D High Resolution Anorectal Manometry

3-D High Resolution Anorectal Manometry This state-of-the-art testing creates a high-resolution pressure profile and 3-D map of the anorectal canal.

Essential for the evaluation of pelvic floor disorders, this test is used in conjunction with other tests such as defecography, balloon expulsion testing, sitz marker testing and SmartPill.

Anorectal manometry is performed after a morning fast and an enema. A catheter containing a small balloon is inserted into the anorectal canal. Patients are asked to perform simple pelvic exercises while a 3-D reconstruction of the anal sphincter is created. No anesthesia is needed and the test usually lasts about 30 minutes. Balloon expulsion testing is commonly performed in conjunction with anorectal manometry.

Indications for this test include: constipation, fecal incontinence and rectal pain.

GI Motility Team

Asyia Ahmad, MD

Director, Motility Center

Karissa Russell, RN, BSN

Head Nurse

Christina Waidell


The information on these pages is provided for general information only and should not be used for diagnosis or treatment, or as a substitute for consultation with a physician or health care professional. If you have specific questions or concerns about your health, you should consult your health care professional.

The images being used are for illustrative purposes only; any person depicted is a model.

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