In one simple swallow test, the inSIGHT Ultima System accurately assesses esophageal function by combining bolus transit dynamics and muscular activity. Bolus transit may be the single most important parameter for assessing dysphagia and qualifying patients prior to anti-reflux surgery… information that you cannot get with manometry alone. Using impedance and manometry together clarifies which patients with manometric abnormalities may have esophageal function disorders.
All patients with suspected achalasia who do not have evidence of a mechanical obstruction on endoscopy or esophagram should undergo esophageal motility testing before a diagnosis of achalasia can be confirmed.
ACG Clinical Guideline: Diagnosis and Management of Achalasia. Michael F. Vaezi, MD, PhD, MSc, FACG, John E. Pandolfino, MD, MSCI and Marcelo F. Vela, MD, MSCR.