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- 저자 : Mika Mizuno (검색결과 4 건)
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Shinichi Togami,Mika Fukuda,Mika Mizuno,Shintaro Yanazume,Hiroaki Kobayashi 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.6
Objective: This study aimed to validate the surgical and oncologic outcomes of robotic surgery with sentinel node navigation surgery (SNNS) in endometrial cancer. Methods: This study included 130 patients with endometrial cancer, who underwent robotic surgery, including hysterectomy, bilateral salpingo-oophorectomy, and pelvic SNNS at the Department of Obstetrics and Gynecology of Kagoshima University Hospital. Pelvic sentinel lymph nodes (SLNs) were identified using the uterine cervix 99m Technetium-labeled phytate and indocyanine green injections. Surgery-related and survival outcomes were also evaluated. Results: The median operative and console times and volume of blood loss were 204 (range: 101–555) minutes, 152 (range: 70–453) minutes, and 20 (range: 2–620) mL, respectively. The bilateral and unilateral pelvic SLN detection rates were 90.0% (117/130) and 5.4% (7/130), respectively, and the identification rate (the rate at which at least one SLN could be identified on either side) was 95% (124/130). Lower extremity lymphedema occurred in only 1 patient (0.8%), and no pelvic lymphocele occurred. Recurrence occurred in 3 patients (2.3%), and the recurrence site was the abdominal cavity, with dissemination in 2 patients and vaginal stump in one. The 3-year recurrence-free survival and 3-year overall survival rates were 97.1% and 98.9%, respectively. Conclusion: Robotic surgery with SNNS for endometrial cancer showed a high SLN identification rate, low occurrence rates of lower extremity lymphedema and pelvic lymphocele, and excellent oncologic outcomes.
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Hiroaki Kajiyama,Kiyosumi Shibata,Mika Mizuno,Tomokazu Umezu,Shiro Suzuki,Ryuichiro Sekiya,Kaoru Niimi,Hiroko Mitsui,Eiko Yamamoto,Michiyasu Kawai,Tetsuro Nagasaka,Fumitaka Kikkawa 대한부인종양학회 2014 Journal of Gynecologic Oncology Vol.25 No.1
Objective: This study was conducted to examine the effects of front-line chemotherapy on overall survival (OS) and postrecurrence survival (PRS) of patients with recurrent ovarian cancer, when stratifying the histologic type. Methods: Five hundred and seventy-four patients with recurrent ovarian cancer with sufficient clinical information, including front-line chemotherapy, were analyzed. The pathologic slides were evaluated by central pathologic review. The patients were divided into two groups: group A (n=261), who underwent taxane plus platinum, and group B (n=313), who underwent conventional platinum-based chemotherapy without taxanes. Results: The median age was 54 years (range, 14 to 89 years). Group A had significantly better median OS (45.0 months vs. 30.3 months, p<0.001) and PRS (23.0 months vs. 13.0 months, p<0.001) compared to group B. The OS and PRS were similar between the groups in patients with clear cell or mucinous histology. In contrast, among patients with non-clear cell, non-mucinous histologies, the OS and PRS of group A were significantly better than those of group B (OS, p<0.001; PRS, p<0.001). Multivariable analyses revealed that, among patients with non-clear cell, non-mucinous histologies, chemotherapy including taxane and platinum was an independent predictor of favorable survival outcomes. Conversely, in patients with clear cell or mucinous histology, taxane-including platinum-based combination chemotherapy did not improve the OS and PRS compared to a conventional platinum-based regimen which did not include taxanes. Conclusion: Since the emergence of taxane plus platinum, the prognosis of patients with recurrent ovarian cancer has improved. However, we here demonstrate that this improvement is limited to patients with non-clear cell, non-mucinous histologies.
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Nobuhisa Yoshikawa,Hiroaki Kajiyama,Mika Mizuno,Kiyosumi Shibata,Michiyasu Kawai,Tetsuro Nagasaka,Fumitaka Kikkawa 대한부인종양학회 2014 Journal of Gynecologic Oncology Vol.25 No.2
Objective: The purpose of this study was to clarify the clinical features of epithelial ovarian carcinoma (EOC) in younger vs. older patients in Japan. Methods: We collected data on 1,562 patients with EOC treated at multiple institutions in the Tokai Ovarian Tumor Study Group, and analyzed them retrospectively. All patients were divided into 2 groups: group A (≤40 years old) and group B (>40 years old). The data were analyzed to evaluate prognostic factors and the distribution of features in each group. Patients were subjected to univariate and multivariate analyses to evaluate overall survival (OS). Results: The median follow-up time was 45.1 months (range, 1 to 257 months). Patients in group A had a significantly higher rate of stage I disease (67.3% vs. 42.6%, respectively; p<0.001) and the mucinous type (36.7% vs. 13.5%, respectively; p<0.001) than those in group B. There was a significant difference of OS between the 2 groups (p=0.013). However, upon stratification according to the stage, there were no significant differences in the OS between the 2 groups (group A vs. B: stage I, p=0.533; stage II-IV, p=0.407). Multivariate analysis revealed that younger age was not an independent prognostic factor for OS. Conclusion: On the basis of our data, younger patients had a different clinical profile than older patients, particularly regarding the stage of the disease and pathological distribution; however, they showed a similar long-term prognosis, even upon stratification according to the stage.
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Tamaki Tanaka,Kazuhiro Takehara,Natsumi Yamashita,Mika Okazawa-Sakai,Kazuya Kuraoka,Norihiro Teramoto,Kenichi Taguchi,Katsushige Yamashiro,Hidenori Kato,Tomoya Mizunoe,Rie Suzuki,Dan Yamamoto,Arisa Ue 대한부인종양학회 2022 Journal of Gynecologic Oncology Vol.33 No.5
Objective: To clarify the frequency of deficient mismatch repair (dMMR) in Japanese ovarian cancer patients, we examined microsatellite instability (MSI) status and immunohistochemistry (IHC) subtypes, including endometrioid carcinoma (EMC), clear cell carcinoma (CCC), or a mixture of both (Mix). Methods: We registered 390 patients who were diagnosed with EMC/CCC/Mix between 2006 and 2015 and treated at seven participating facilities. For 339 patients confirmed eligible by the Central Pathological Review Board, MSI, IHC, and MutL homolog 1 methylation analyses were conducted. The tissues of patients with Lynch syndrome (LS)-related cancer histories, such as colorectal and endometrial cancer, were also investigated. Results: MSI-high (MSI-H) status was observed in 2/217 CCC (0.9%), 10/115 EMC (8.7%), and 1/4 Mix (25%). Additionally, loss of MMR protein expression (LoE-MMR) was observed in 5/219 (2.3%), 16/115 (14.0%), and 1/4 (25%) patients with CCC, EMC, and Mix, respectively. Both MSI-H and LoE-MMR were found significantly more often in EMC (p<0.001). The median (range) ages of patients with MMR expression and LoE-MMR were 54 (30–90) and 46 (22–76) (p=0.002), respectively. In the multivariate analysis, advanced stage and histological type were identified as prognostic factors. Conclusion: The dMMR rate for EMC/CCC was similar to that reported in Western countries. In Japan, it is assumed that the dMMR frequency is higher because of the increased proportion of CCC.
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