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Title: Nocturnal acid breakthrough in children with reflux esophagitis taking proton pump inhibitors. Author: Pfefferkorn MD, Croffie JM, Gupta SK, Molleston JP, Eckert GJ, Corkins MR, Fitzgerald JF. Journal: J Pediatr Gastroenterol Nutr; 2006 Feb; 42(2):160-5. PubMed ID: 16456408. Abstract: OBJECTIVES: We aimed to determine if nocturnal acid breakthrough occurs in children receiving proton pump inhibitors for reflux esophagitis, and to compare the healing of esophagitis in children with nocturnal acid breakthrough receiving proton pump inhibitors +/- ranitidine. METHODS: This is a prospective, double-blind study. Endoscopic and histologic esophagitis were scored 0-4 and 0-3, respectively. Patients were treated with a proton pump inhibitor twice daily and esophagogastric pH monitoring was performed at week 3. Patients with nocturnal acid breakthrough were randomized. One group received ranitidine and the other received placebo at bedtime in addition to proton pump inhibitor therapy. Endoscopy was performed on all patients (with pH monitoring on patients with nocturnal acid breakthrough) during the 17th week of therapy. RESULTS: We enrolled 18 patients, ages 1 to 13 years (mean = 10.3 years). Mean baseline endoscopic and histologic scores were 3.1 +/- 1.4 and 1.8 +/- 0.7, respectively. Mean dose of proton pump inhibitor was 1.3 mg/kg +/- 0.6. Nocturnal acid breakthrough was documented in 16/18 (89%) patients. Seven patients received ranitidine and 9 received placebo. The reflux index improved: mean of 14.3 at baseline, 2.0 at week 3 (P = 0.0001), and 5.1 at week 17 (P = 0.09). Nocturnal acid breakthrough persisted in 9/12 (75%) patients, 3 of whom received ranitidine at bedtime. Esophagitis improved in all patients following therapy: mean endoscopy and histology scores were 1.6 +/- 1.8 (P = 0.0020) and 0.8 +/- 0.9 (P = 0.0013), respectively. Symptoms significantly improved from a mean score of 2.0 at baseline to 0.4 at week 17 (P = 0.0001). CONCLUSIONS: Nocturnal acid breakthrough is common in pediatric patients treated with proton pump inhibitors. Reflux index remains normal in spite of nocturnal acid breakthrough. Symptoms and esophagitis continued to improve during therapy in spite of nocturnal acid breakthrough. There appears to be no additional benefit to supplementation with ranitidine at bedtime.[Abstract] [Full Text] [Related] [New Search]