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Year : 2021  |  Volume : 24  |  Issue : 12  |  Page : 1785-1792

Gastrointestinal stromal tumors of the stomach: A 10-year experience of a single-center

Department of General Surgery, Kartal Dr Lütfi Kırdar City Hospital, Istanbul, Turkey

Correspondence Address:
Dr. H Uzunoglu
Department of General Surgery, Istanbul Kartal Dr Lütfi Kırdar City Hospital
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/njcp.njcp_558_20

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Background: Gastrointestinal tract stromal tumors (GIST) are the most common mesenchymal tumors in the gastrointestinal tract (GIS). GISTs may cause significant morbidity and mortality rates. Aim: In this study, it was aimed to evaluate 10 years of gastric GIST cases followed in our hospital, and to analyze the prognostic factors. Subjects and Methods: In this single-center retrospective study, a total of 64 patients who were operated between May 2010 and May 2020 due to gastric GIST tumor were reviewed. Clinical and pathological features, risk classifications, overall survival (OS) and disease-free survival (DFS) were evaluated. Results: According to the risk classification, 18.8% of the patients were in the high-risk group. The overall 5-year OS and DFS rates were 85.7%. The mean OS of the patients was 47.9 SD36.2 months, and the duration of DFS was 45.5 months. Patients with a 5-year OS rate above 5 cm in diameter (P = 0.024), with a mitotic index above 5/50 high power field (HPF) (P = 0.038), and those with a high-risk group (P = 0.011) were significantly lower than the other group. In the correlation analysis, it was found that tumor diameter correlated significantly with OS (P = 0.034; r = -0.317). Tumor diameter and mitotic index were found to be inversely correlated with DFS duration (P = 0.004; r = -0.425 and P = 0.035; r = -0.316, respectively). Conclusion: Our findings showed that in gastric GIST cases, as the primary tumor diameter and mitotic index increase, correlate with survival rates and the mean overall and disease-free survival times decrease.

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