August 1980

The String Test for Gastroesophageal Reflux

Author Affiliations

From the Department of Pediatrics, Division of Gastroenterology, University of California, School of Medicine, San Francisco.

Am J Dis Child. 1980;134(8):775-776. doi:10.1001/archpedi.1980.02130200045014

• The sensitivity of the string test for detection of gastroesophageal reflux was assessed in 15 infants and children, 5 months to 11 years of age (mean, 2.8 years), with vomiting, regurgitation, or lower respiratory tract symptoms, and compared with the barium esophagram, esophageal manometry, and the acid reflux test (pH probe). Barium esophagram showed reflux in 4/15 patients, pH probe in 7/15, and string test in 6/15. The string test is a simple, rapid, safe, and efficient screening method for patients with suspected gastroesophageal reflux.

(Am J Dis Child 134:775-776, 1980)