The number of swallows with reflux on high-resolution esophageal manometry with impedance had strong specificity but low sensitivity for gastroesophageal reflux disease in a recently published study evaluating the correlation between reflux during the test and ambulatory pH monitoring results.
Researchers led by Asad Jehangir, MBBS, a gastroenterologist at the Medical College of Georgia at Augusta University, evaluated the association of reflux on the impedance portion of esophageal