Table 1

 Prevalence of symptoms in patients during the first 24 hour period (day 1) of simultaneous recordings with the catheter free system (Bravo) and the conventional pH measurement system (Synectics), and the second 24 hour period (day 2) recording with only the catheter free system

Day 1 (%)Day 2 (%)p Value*
2 test.
Sleep disorders6815<0.0001
Dysphagia for solids7460NS
Dysphagia for liquids51200.006
Thoracic discomfort6857NS
Saliva swallowing discomfort51290.05