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  • Title: [A case of advanced gastric cancer successfully treated with TS-1/CDDP combination chemotherapy, able to maintain CR for more than two years against multiple liver metastases].
    Author: Meguro E, Kimura T, Noda Y, Matsumoto Y, Irinoda T, Hayakawa Y, Kobayashi M, Takagane A, Hioki J.
    Journal: Gan To Kagaku Ryoho; 2007 Feb; 34(2):249-52. PubMed ID: 17301537.
    Abstract:
    INTRODUCTION: In recent years, a high success rate of combination chemotherapy with TS-1/CDDP has been reported against advanced gastric carcinoma. We, this time, experienced a case of advanced hemorrhagic gastric cancer with multiple hepatic metastases for which total gastrectomy was performed, followed by postoperative combination chemotherapy with TS-1/CDDP which culminated in achieving CR for the liver metastases. CASE REPORT: The patient was a 59-year-old woman who was hospitalized for a type IV gastric carcinoma in the upper part of the gastric body. Further examination revealed liver (S 2, S 5, S 7) and lymph node metastases. Due to hemorrhage from the tumorous lesion, the treatment strategy selected was total gastrectomy followed by postoperative chemotherapy. Operative and clinicopathological findings revealed a mass lesion of MLU, type IV, 16.0x14.0 cm, sT 3 (SE), sH 1 (bilobular multiple metastases) and CY 0, and por 1, pT 2 (SS), pN 1 (+) [23/38], int, INF beta, ly 3 and v 1, respectively. Combination chemotherapy with TS-1/CDDP was instituted after surgery. As for the dosing method of combination chemotherapy,the patient was treated with a course of TS-1 80 mg daily divided into two doses over 21 days continuously, followed by a 14-day cessation of the drug,together with a dose of CDDP 70 mg on day 8. The patient received a total of four courses. At the completion of the third chemotherapy course, her multiple hepatic metastases disappeared. Further, the preoperative CA 19-9 level of 370 U/mL returned to normal after chemotherapy. Adverse events observed were leukopenia and thrombocytopenia, both of which were judged to be grade 2. At two years and nine months, the patient is being followed on an outpatient basis without any sign of postoperative recurrent disease. CONCLUSION: We experienced a patient who was successfully treated with combination chemotherapy and demonstrated disappearance of her multiple hepatic metastases, showing a clinical response of CR lasting for more than two years against the metastases. It was inferred that this regimen of TS-1/CDDP is an effective treatment modality not only as preoperative but also postoperative chemotherapy after surgery for advanced gastric carcinoma.
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