Investigation of Clinical Char acteristics of 24-hour Esophageal pH Monitoring in Gastroesophageal Reflux Disease

OBJECTIVE To discuss the relation between value of 24-hour esophageal pH monitoring and gastroesophageal reflux, and further more provide scientific basis for the clinic diagnosis and treatment of GERD.METHODS CTD-synectics dynamic pH instrument and computer procedure software were used to monitor and analyze 24h pH esophagus value of the 52 cases.Johson and DeMeester's 6 parameters were adopted to evaluate the patients' reflux degree.RESULTS The parameters were respectively between the two groups(P0.01).The total positive rate of DeMeester score over 14.72 was 57.7%.The total time percentage of pH4 and the positive diagnosis rate of reflux times were the highest(57.7%).The positive diagnosis rate of total time in under the lying position pH4 condition was the lowest(15.4%).CONCLUSION 24h pH Dynamic Monitoring is proved to be an objective and effective means of GERD diagnoses and treatment.