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RISS 인기검색어
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- 저자 : Hirokazu Usui (검색결과 2 건)
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Toshiyuki Kanno,Hideo Matsui,Yoshika Akizawa,Hirokazu Usui,Makio Shozu 대한부인종양학회 2018 Journal of Gynecologic Oncology Vol.29 No.6
Objective: Highly effective chemotherapy for patients with low-risk gestational trophoblastic neoplasia (GTN) is associated with almost a 100% cure rate. However, 20%–30% of patients treated with chemotherapy need to change their regimens due to severe adverse events (SAEs) or drug resistance. We examined the treatment outcomes of second-line chemotherapy for patients with low-risk GTN. Methods: Between 1980 and 2015, 281 patients with low-risk GTN were treated. Of these 281 patients, 178 patients were primarily treated with 5-day intramuscular methotrexate (MTX; n=114) or 5-day drip infusion etoposide (ETP; n=64). We examined the remission rates, the drug change rates, and the outcomes of second-line chemotherapy. Results: The primary remission rates and drug resistant rates of 5-day ETP were significantly higher (p<0.001) and significantly lower (p=0.002) than those of 5-day MTX, respectively. Forty-seven patients (26.4%) required a change in their chemotherapy regimen due to the SAEs (n=16) and drug resistance (n=31), respectively. Of these 47 patients failed the first-line regimen, 39 patients (39/47, 82.9%) were re-treated with single-agent chemotherapy, and 35 patients (35/39, 89.7%) achieved remission. Four patients failed second-line, single-agent chemotherapy and eight patients (17.0%) who failed first-line regimens were treated with combined or multi-agent chemotherapy and achieved remission. Conclusions: Patients with low-risk GTN were usually treated with single-agent chemotherapy, while 20%–30% patients had to change their chemotherapy regimen due to SAEs or drug resistance. The second-line regimens of single-agent chemotherapy were effective; however, there were several patients who needed multiple agents and combined chemotherapy to achieve remission.
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Akira Mitsuhashi,Yuji Habu,Tatsuya Kobayashi,Yoshimasa Kawarai,Hiroshi Ishikawa,Hirokazu Usui,Makio Shozu 대한부인종양학회 2019 Journal of Gynecologic Oncology Vol.30 No.6
Objective: The present study investigated long-term outcomes of medroxyprogesteroneacetate (MPA) plus metformin therapy in terms of control of atypical endometrial hyperplasia(AEH) and endometrial cancer (EC), and post-treatment conception. Methods: We retrospectively analyzed 63 patients (42 with EC; 21 with AEH) who underwentfertility-sparing management using MPA plus metformin. MPA (400 mg/day) and metformin(750–2,250 mg/day) were administered to achieve complete response (CR). Metformin wasadministered until conception, even after MPA discontinuation. Results: Of the total patients, 48 (76%) had a body mass index (BMI) ≥25 kg/m2 and 43 (68%)showed insulin resistance. Sixty-one patients (97%) achieved CR within 18 months. CR ratesat 6, 8–9, and 12 months were 60%, 84%, and 90%, respectively. During a median followupperiod of 57 months (range, 13–115 months), relapse occurred in 8 of 61 patients (13.1%)who had achieved CR. Relapse-free survival (RFS) in all patients at 5 years was 84.8%. Uponunivariate analysis, patients with BMI ≥25 kg/m2 had significantly better prognoses than didthose with BMI <25 kg/m2 (odds ratio=0.19; 95% confidence interval=0.05–0.66; p=0.009). Overall pregnancy and live birth rates per patient were 61% (19/31) and 45% (14/31), respectively. Conclusions: MPA plus metformin is efficacious in terms of RFS and post treatmentconception. Moreover, metformin may be more efficacious for patients with BMI ≥25 kg/m2.
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