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  • Title: Clinical outcome using lansoprazole in acid hypersecretors with and without Zollinger-Ellison syndrome: a 13-year prospective study.
    Author: Hirschowitz BI, Simmons J, Mohnen J.
    Journal: Clin Gastroenterol Hepatol; 2005 Jan; 3(1):39-48. PubMed ID: 15645403.
    Abstract:
    BACKGROUND & AIMS: Unremitting gastric acid and pepsin hypersecretion causes serious persistent and relapsing lesions, but the natural history with medical treatment alone has not been well-defined. The aims of this study were to heal and prevent relapse of acid/peptic lesions during acid suppression and to analyze benefits and risks during long-term lansoprazole treatment. METHODS: Sixty-seven patients (49 with Zollinger-Ellison syndrome [ZES], 18 without), with basal acid output (BAO) >15 mmol/h or >5 mmol/h if post-antrectomy (n = 9, all ZES), were treated with individually optimized doses of lansoprazole (7.5-450 mg/day; median, 75 mg/day) to reduce BAO to <5 mmol/h or <1 mmol/h post-antrectomy and underwent endoscopy every 3-6 months for up to 13 years (median, 6.25 years). RESULTS: Before treatment, 94% had duodenal ulcer, 64% had esophagitis, 60% had 1 or more bleeding episodes, 13% had perforated ulcers, 90% had pain, 60% had heartburn, and 40%-48% had diarrhea, vomiting, and/or weight loss. Forty-seven patients (70%) remained symptom- and lesion-free, whereas 13 (20%) had mild, transient relapses, and 7 (10%) had more complicated relapses. Overall, symptoms were reduced 90+%; ulcer or esophagitis relapsed in 4.8% of patients/year, unrelated to Helicobacter pylori , whereas complications declined to <2%/y. Post-antrectomy ZES patients had 3.6-fold higher relapse rates than unoperated ZES patients (67% vs 18%, respectively). With BAO >5 mmol/h in intact patients, relative risk of relapse was 4.1, confidence interval 2.1-8.1, P < .001. Twenty patients died, 3 as a result of ZES (2 metastatic gastrinomas). CONCLUSIONS: With individually optimized medical suppression of acid secretion, 90% of patients had good to excellent long-term outcomes without surgery, with an annualized total relapse rate of <5%.
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