Twenty Four Hour Ambulatory pH & Impedance Testing: Normative Data for Indian Population

GERD is common in Indian population and the normative data which is used to diagnose \& manage GERD and its complications are based on western data which is not validated in the Indian population. Although normative data is available for commonly used twenty-four impedance-pH parameters, their global application has limitations, stemming from use of small healthy volunteer cohorts from few countries for normative data. At present, there is no normative data for twenty-four hours impedance-pH monitoring in Indian population. The aim of this study is to obtain a new set of normal values specific for the Indian population.