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  • Title: Surgery of upper GI gastrointestinal stromal tumors: our experience, prognostic analysis.
    Author: Kasetsermwiriya W, Nagai E, Nakata K, Nagayoshi Y, Shimizu S, Tanaka M.
    Journal: Hepatogastroenterology; 2015; 62(137):87-92. PubMed ID: 25911874.
    Abstract:
    BACKGROUND/AIMS: To review our treatment experience of gastrointestinal stromal tumors (GISTs) of the upper gastrointestinal tract and identify the prognostic factors that influence tumor recurrence. METHODOLOGY: Data of 46 consecutive patients with upper GI GISTs who underwent surgery from 1988 to 2011 were reviewed. The overall and disease-free survival rates and influence of clinicopathologic variables on disease-free survival rate were evaluated. RESULTS: The median age was 64 years (range, 20-86 years). R0 resections were performed in 43 (93.5%) patients. With a median follow-up time of 33 months (1-275 months), there were 5 (10.9%) recurrences and 2 mortalities in the high-risk group. The overall survival and recurrence-free survival rates at 5 years were 92.1% and 84.6%, respectively. Male gender, tumor size of >10 cm, high numbers of mitotic figures, R1 resection, high risk according to the Joensuu criteria, and a Ki-67 index of >10% were associated with a poor prognosis. CONCLUSIONS: Surgical resection of low- and intermediate-risk GISTs has excellent results. High counts of mitotic figures, male gender, incomplete resection, large tumor size, and a high Ki-67 index are associated with a poor prognosis.
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