Effect of 8-week Therapy with Rabeprazole on Presenting Symptoms in Korean Patients with Gastroesophageal Reflux Disease

ABSTRACT

BACKGROUND: Gastroesophageal reflux diease (GERD) is common in Western civilization and comprise 75% of esophageal diseases. However, there are only few studies of GERD in Korea. The aim of the study was to evaluate the clinical symptoms of GERD in Koreans and the effect of rabeprazole on the symptoms. METHODS: The study subjects were included 353 patients who were diagnosed endoscopically with reflux esophagitis (316) or non-erosive reflux disease who have complained of intermittent heartburn during the past 3 months or more. All patients received rabeprazole 20 mg daily for 8 weeks. Symptoms according to 8 symptom categories of GERD were evaluated. Patients recorded the severity of GERD associated symptoms at baseline, 4 weeks and 8 weeks after treatment. Presenting symptoms in Korean, frequency and severity of each symptom was evaluated. Efficacy of Rabeprazole treatment was analysed. RESULTS: The most common symptoms of GERD were regurgitation (60.9%), heartburn (52.7%), epigastric pain/ soreness (49.6%) and other epigastric discomfort (47.0%). Symptom severity was rated in order of epigastric pain/ soreness, epigastric discomfort, and heartburn. The proportion of all symptoms, except for heart burn and cough, increased in relation to the severity of endoscopic grading, but the severity of symptoms was not significantly different between subgroups according to endoscopic findings. Symptoms, except for hoarseness, globus sensation and cough, significantly improved in 4 weeks after treatment. Cough did not improve after 4 weeks irrespective of smoking status, All symptoms significantly improved after 8 weeks. CONCLUSION: Regurgitation was more common, and epigastric symptoms were more severe than heartburn in Koreans. The 8-week rabeprazole treatment was effective on all symptoms associated with GERD.