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  • Title: Treatment of type I gastric neuroendocrine tumors with somatostatin analogs.
    Author: Khuroo MS, Khuroo MS, Khuroo NS.
    Journal: J Gastroenterol Hepatol; 2010 Mar; 25(3):548-54. PubMed ID: 20074162.
    Abstract:
    BACKGROUND AND AIM: There are limited data on response and long-term follow-up of octreotide therapy in type-I gastric neuroendocrine tumors. The objective of the present study was to assess the response of type-I gastric neuroendocrine tumors to octreotide-long acting, repeatable (LAR) therapy and evaluate long-term follow up of such patients after therapy. METHODS: Three patients with documented type-I gastric neuroendocrine tumors from a tertiary gastroenterology centre were studied. Octreotide-LAR therapy 20 mg intramuscularly every 28 days was administered for one year. Serum gastrin and chromogranin levels, gastroscopies and biopsies from tumor nodules at 6 months and one year on therapy and every 6 months after completion of drug therapy were taken. Follow-up after completion of therapy extended for 3 years in two and 2.5 years in one patient. RESULTS: During octreotide therapy there was normalization of serum gastrin levels and serum chromogranin levels. Tumors in all three patients had regressed at 6 months of treatment. Following cessation of therapy, there was progressive rise of serum gastrin to pre-treatment levels. Serum chromogranin levels remained within normal limits. Gastroscopic and histologic examination of gastric biopsies did not reveal recurrence of tumors in any patients. All patients tolerated therapy well and became asymptomatic soon after drug therapy. CONCLUSIONS: Octreotide-LAR therapy causes regression of type-I gastric neuroendocrine tumors. After completion of drug therapy there was no recurrence of tumors even with continued hypergastrinemia. Octreotide therapy should be considered as one of the treatment options in such patients.
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