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Author Mikio Mikami

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The trend and outcome of postsurgical therapy for high-risk early-stage cervical cancer with lymph node metastasis in Japan: a report from the Japan Society of Gynecologic Oncology (JSGO) guidelines evaluation committee.

Masae Ikeda, Masako Shida, Shogo Shigeta, Satoru Nagase, Fumiaki Takahashi, Wataru Yamagami, Hidetaka Katabuchi, Nobuo Yaegashi, Daisuke Aoki, Mikio Mikami,

<h4>Objective</h4>The Japan Society of Gynecologic Oncology published the first guidelines for the treatment of cervical cancer in 2007. The aim of this research was to evaluate the influence of the introduction of the first guideline on clinical trends and outcomes of patients with early-stage cervical cancer who underwent surgery.<h4>Methods</h4>This analysis ... Read more >>

J Gynecol Oncol (Journal of gynecologic oncology)
[2021, 32(3):e44]

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Wait-time for adjuvant radiotherapy and oncologic outcome in early-stage cervical cancer: A treatment implication during the coronavirus pandemic.

Koji Matsuo, Muneaki Shimada, Shinya Matsuzaki, Takayuki Enomoto, Mikio Mikami,

Eur J Cancer (European journal of cancer (Oxford, England : 1990))
[2021, 148:117-120]

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A randomized phase III trial of adjuvant chemotherapy versus concurrent chemoradiotherapy for postoperative cervical cancer: Japanese Gynecologic Oncology Group study (JGOG1082).

Akiko Furusawa, Munetaka Takekuma, Keita Mori, Tomoka Usami, Eiji Kondo, Shin Nishio, Koji Nishino, Yuichiro Miyamoto, Ryoichi Yoshimura, Miho Watanabe, Mikio Mikami, Takayuki Enomoto,

<h4>Background</h4>The standard treatment for stage IB-IIB cervical cancer is radiotherapy or radical hysterectomy; after radical hysterectomy, adjuvant concurrent chemoradiotherapy is recommended for patients with high risk factors. However, adjuvant concurrent chemoradiotherapy can cause severe gastrointestinal and urinary toxicity.<h4>Primary objective</h4>To assess whether postoperative adjuvant chemotherapy is not inferior to adjuvant concurrent ... Read more >>

Int J Gynecol Cancer (International journal of gynecological cancer : official journal of the International Gynecological Cancer Society)
[2021, 31(4):623-626]

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The 2020 Japan Society of Gynecologic Oncology guidelines for the treatment of ovarian cancer, fallopian tube cancer, and primary peritoneal cancer.

Hideki Tokunaga, Mikio Mikami, Satoru Nagase, Yoichi Kobayashi, Tsutomu Tabata, Masanori Kaneuchi, Toyomi Satoh, Yasuyuki Hirashima, Noriomi Matsumura, Yoshihito Yokoyama, Kei Kawana, Satoru Kyo, Daisuke Aoki, Hidetaka Katabuchi,

The fifth edition of the Japan Society of Gynecologic Oncology guidelines for the treatment of ovarian cancer, fallopian tube cancer, and primary peritoneal cancer was published in 2020. The guidelines contain 6 chapters-namely, (1) overview of the guidelines; (2) epithelial ovarian cancer, fallopian tube cancer, and primary peritoneal cancer; (3) ... Read more >>

J Gynecol Oncol (Journal of gynecologic oncology)
[2021, 32(2):e49]

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The validity of the subsequent pregnancy index score for fertility-sparing trachelectomy in early-stage cervical cancer.

Takashi Iwata, Hiroko Machida, Koji Matsuo, Kaoru Okugawa, Tsuyoshi Saito, Kyoko Tanaka, Kenichiro Morishige, Hiroaki Kobayashi, Kiyoshi Yoshino, Hideki Tokunaga, Tomoaki Ikeda, Makio Shozu, Nobuo Yaegashi, Takayuki Enomoto, Mikio Mikami,

<h4>Objective</h4>To evaluate timing and a prediction model for pregnancy in early-stage cervical cancer patients who underwent fertility-sparing trachelectomy.<h4>Design</h4>Retrospective cohort.<h4>Setting</h4>Academic multicenter.<h4>Patient(s)</h4>Women ages <45 years with clinical stage I-II cervical cancer were enrolled between 2009 and 2013 (n = 393).<h4>Intervention(s)</h4>Planned fertility-sparing trachelectomy.<h4>Main outcome measure(s)</h4>Cumulative incidences and clinicopathological characteristics of those who developed ... Read more >>

Fertil Steril (Fertility and sterility)
[2021, :]

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A retrospective assessment of the safety and efficacy of laparoscopic radical hysterectomy in Japan during the early years following its introduction: a Japanese Gynecologic Oncology Group study (JGOG1081S).

Eiji Kobayashi, Hiroyuki Kanao, Munetaka Takekuma, Shin Nishio, Atsumi Kojima-Chiba, Akiko Tozawa, Satoshi Yamaguchi, Nobuhiro Takeshima, Eiji Nakatani, Mikio Mikami,

<h4>Objective</h4>To evaluate the safety and efficacy of laparoscopic radical hysterectomy (LRH) for cervical cancer, in terms of morbidity and short-term oncologic outcome following LRH's introduction into Japan.<h4>Methods</h4>We conducted a retrospective analysis of patients with early-stage cervical cancer (FIGO staging IA2, IB1, and IIA1) who underwent LRH from Dec 2014 to ... Read more >>

Int J Clin Oncol (International journal of clinical oncology)
[2021, 26(2):417-428]

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Hospital volume-outcome relationship in vulvar cancer treatment: a Japanese Gynecologic Oncology Group study.

Koji Matsuo, Shin Nishio, Shinya Matsuzaki, Hiroko Machida, Mikio Mikami,

J Gynecol Oncol (Journal of gynecologic oncology)
[2021, 32(2):e24]

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Surgical margin status and recurrence pattern in invasive vulvar Paget's disease: A Japanese Gynecologic Oncology Group study.

Koji Matsuo, Shin Nishio, Shinya Matsuzaki, Haruko Iwase, Seiji Kagami, Shu Soeda, Hirokazu Usui, Ryutaro Nishikawa, Mikio Mikami, Takayuki Enomoto,

<h4>Objective</h4>To examine the association between surgical margin status and recurrence pattern in invasive vulvar Paget's disease.<h4>Methods</h4>This is a preplanned secondary analysis of a previously organized nationwide retrospective study in Japan (JGOG-1075S). Women with stage I-IV invasive vulvar Paget's disease who received surgical treatment from 2001-2010 were examined (n=139). Multivariable analysis ... Read more >>

Gynecol Oncol (Gynecologic oncology)
[2021, 160(3):748-754]

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Small Cell Neuroendocrine Carcinoma of the Endometrium with Difficulty Identifying the Original Site in the Uterus.

Tetsuji Iida, Toshinari Muramatsu, Hiroshi Kajiwara, Nobuaki Kato, Hitoshi Itoh, Tomoaki Narayama, Hiroko Machida, Masae Ikeda, Masako Shida, Takeshi Hirasawa, Mikio Mikami,

Diagnosis of malignant uterine tumor with continuous lesions from the uterine body to the cervix, i.e., endometrial or cervical cancer, depends on the main site of the lesions. However, it may be difficult to differentiate advanced cancer that is widespread in the uterus. We experienced a patient who was diagnosed ... Read more >>

Tokai J Exp Clin Med (The Tokai journal of experimental and clinical medicine)
[2020, 45(4):156-161]

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Hypoxia-inducible Factor-1α Suppression in Ovarian Clear-cell Carcinoma Cells by Silibinin Administration.

Mariko Miyazawa, Masanori Yasuda, Masaki Miyazawa, Naoki Ogane, Tomomi Katoh, Mitsutake Yano, Takeshi Hirasawa, Mikio Mikami, Hitoshi Ishimoto,

<h4>Background/aim</h4>Advanced ovarian clear-cell carcinoma (CCC) fails to respond to standard chemotherapy, and has a poor prognosis. Since hypoxia-inducible factor-1 (HIF-1) stimulates various genes involved in cancer, we aimed to examine the efficacy of silibinin, an active component of milk thistle belonging to Asteraceae, in suppressing HIF-1 activity, and elucidate the ... Read more >>

Anticancer Res (Anticancer research)
[2020, 40(12):6791-6798]

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Impact of lymphadenectomy on the treatment of endometrial cancer using data from the JSOG cancer registry.

Keiko Saotome, Wataru Yamagami, Hiroko Machida, Yasuhiko Ebina, Yoichi Kobayashi, Tsutomu Tabata, Masanori Kaneuchi, Satoru Nagase, Takayuki Enomoto, Daisuke Aoki, Mikio Mikami,

<h4>Objective</h4>Regional lymph node (LN) dissection is a standard surgical procedure for endometrial cancer, but there is currently no clear consensus on its therapeutic significance. We aimed to determine the impact of regional LN dissection on the outcome of endometrial cancer.<h4>Methods</h4>Study subjects comprised 36,813 patients who were registered in the gynecological ... Read more >>

Obstet Gynecol Sci (Obstetrics & gynecology science)
[2021, 64(1):80-89]

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The Role of Hypertension and Renin-angiotensin-aldosterone System Inhibitors in Bleomycin-induced Lung Injury.

Ryujiro Hara, Makoto Onizuka, Sawako Shiraiwa, Kaito Harada, Yasuyuki Aoyama, Daisuke Ogiya, Masako Toyosaki, Rikio Suzuki, Sinichiro Machida, Ken Ohmachi, Yoshiaki Ogawa, Hiroshi Kawada, Shigeki Watanabe, Akira Miyajima, Ryota Masuda, Masayuki Iwazaki, Mikio Mikami, Takashi Koike, Hiroyuki Mochizuki, Kiyoshi Ando,

<h4>Introduction</h4>The risk factors for bleomycin-induced lung injury (BLI), a fatal complication of cancer chemotherapy, are not well-established. The renin-angiotensin-aldosterone system (RAAS) has recently been suggested to play a role in the development of lung injury. This study clarified the impact of hypertension (HTN) and the administration of RAAS inhibitors on ... Read more >>

Clin Lymphoma Myeloma Leuk (Clinical lymphoma, myeloma & leukemia)
[2021, 21(4):e321-e327]

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Analysis of pathological and clinical characteristics of cervical conization according to age group in Japan.

Isao Murakami, Akiko Ohno, Masae Ikeda, Hiroshi Yamashita, Mikio Mikami, Yoichi Kobayashi, Satoru Nagase, Masatoshi Yokoyama, Takayuki Enomoto, Hidetaka Katabuchi,

<h4>Objective</h4>With increased screening, more patients with precancerous or early cervical cancer are now being identified. Age at pregnancy, and thus number of patients requiring fertility preservation, have also increased, resulting in more diagnostic and therapeutic cervical conization (conization) procedures. We here investigated the pathological and clinical characteristics of patients undergoing ... Read more >>

Heliyon (Heliyon)
[2020, 6(10):e05193]

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Lymphadenectomy for primary ovarian cancer: a systematic review and meta-analysis.

Tatsuyuki Chiyoda, Manabu Sakurai, Toyomi Satoh, Satoru Nagase, Mikio Mikami, Hidetaka Katabuchi, Daisuke Aoki,

<h4>Objective</h4>To assess the effectiveness of lymphadenectomy at primary debulking surgery (PDS) on the survival of patients with epithelial ovarian cancer (EOC).<h4>Methods</h4>We searched PubMed, Ichushi, and the Cochrane Library. Randomized controlled trials (RCTs) and retrospective cohort studies comparing survival of women with EOC undergoing lymphadenectomy at PDS with that of women ... Read more >>

J Gynecol Oncol (Journal of gynecologic oncology)
[2020, 31(5):e67]

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Investigation of clinicopathological features of vulvar cancer in 1068 patients: A Japanese Gynecologic Oncology Group (JGOG) nationwide survey study.

Shin Nishio, Kenta Murotani, Sari Nakao, Motoki Takenaka, Shiro Suzuki, Yoichi Aoki, Yukiharu Todo, Masayoshi Hosaka, Hidekatsu Nakai, Hidetaka Katabuchi, Hirotaka Nishi, Munetaka Takekuma, Mikio Mikami, Takayuki Enomoto,

<h4>Objective</h4>Vulvar cancer is a rare malignancy in the aging population, and optimizing treatment strategies requires large-scale investigation of the clinicopathological features of this disease. In Japan, no such surveys have been conducted in the past 30 years. This large-scale retrospective multi-center study aimed to examine the clinicopathological features of vulvar cancer ... Read more >>

Gynecol Oncol (Gynecologic oncology)
[2020, 159(2):449-455]

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Utility of Comprehensive Serum Glycopeptide Spectra Analysis (CSGSA) for the Detection of Early Stage Epithelial Ovarian Cancer.

Koji Matsuo, Kazuhiro Tanabe, Masaru Hayashi, Masae Ikeda, Miwa Yasaka, Hiroko Machida, Masako Shida, Kenji Sato, Hiroshi Yoshida, Takeshi Hirasawa, Tadashi Imanishi, Mikio Mikami,

Comprehensive serum glycopeptide spectra analysis (CSGSA) evaluates >10,000 serum glycopeptides and identifies unique glycopeptide peaks and patterns via supervised orthogonal partial least-squares discriminant modeling. CSGSA was more accurate than cancer antigen 125 (CA125) or human epididymis protein 4 (HE4) for detecting early stage epithelial ovarian cancer. Combined CSGSA, CA125, and ... Read more >>

Cancers (Basel) (Cancers)
[2020, 12(9):]

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Comprehensive Serum Glycopeptide Spectra Analysis Combined with Artificial Intelligence (CSGSA-AI) to Diagnose Early-Stage Ovarian Cancer.

Kazuhiro Tanabe, Masae Ikeda, Masaru Hayashi, Koji Matsuo, Miwa Yasaka, Hiroko Machida, Masako Shida, Tomoko Katahira, Tadashi Imanishi, Takeshi Hirasawa, Kenji Sato, Hiroshi Yoshida, Mikio Mikami,

Ovarian cancer is a leading cause of deaths among gynecological cancers, and a method to detect early-stage epithelial ovarian cancer (EOC) is urgently needed. We aimed to develop an artificial intelligence (AI)-based comprehensive serum glycopeptide spectra analysis (CSGSA-AI) method in combination with convolutional neural network (CNN) to detect aberrant glycans ... Read more >>

Cancers (Basel) (Cancers)
[2020, 12(9):]

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Epidemiological guideline influence on the therapeutic trend and patient outcome of uterine cervical cancer in Japan: Japan society of gynecologic oncology guideline evaluation committee project.

Shogo Shigeta, Masako Shida, Satoru Nagase, Masae Ikeda, Fumiaki Takahashi, Takeo Shibata, Wataru Yamagami, Hidetaka Katabuchi, Nobuo Yaegashi, Daisuke Aoki, Mikio Mikami,

<h4>Objective</h4>The Japan Society of Gynecologic Oncology published its first clinical guidelines for uterine cervical cancer in 2007 which has been revised twice in 2011 and 2017. The aim of this study was to investigate the influence of the first guideline publication on the therapeutic trend and patient outcome by analyzing ... Read more >>

Gynecol Oncol (Gynecologic oncology)
[2020, 159(1):248-255]

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Utility of the 3-tier grouping system for survival discriminatory ability in stage IIA cervical cancer.

Koji Matsuo, David J Nusbaum, Maximilian Klar, Shinya Matsuzaki, Brendan H Grubbs, Hiroko Machida, Ikuo Konishi, Mikio Mikami, Lynda D Roman,

<h4>Objective</h4>Given the improved survival prediction of a tumor size-based 3-tier grouping system for stage IB cervical cancer under the new staging guidelines, this study examined the survival utility of a tumor size-based 3-tier system for stage T2a cervical cancer.<h4>Methods</h4>This is a population-based retrospective observational study utilizing the Surveillance, Epidemiology, and ... Read more >>

Eur J Surg Oncol (European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology)
[2021, 47(2):331-337]

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Proposal of a Two-Tier System in Grouping Adenocarcinoma of the Uterine Cervix.

Hiroko Machida, Koji Matsuo, Shinya Matsuzaki, Wataru Yamagami, Yasuhiko Ebina, Yoichi Kobayashi, Tsutomu Tabata, Masanori Kaneuchi, Satoru Nagase, Takayuki Enomoto, Mikio Mikami,

(1) Background: This study examined the use of a two-tier system in grouping cervical adenocarcinoma for survival discrimination. (2) Methods: A nationwide retrospective observational cohort study was conducted using the Japan Society of Gynecologic Oncology tumor registry database from 2001 to 2015 (n = 86,754). Adenocarcinoma subtypes were grouped as ... Read more >>

Cancers (Basel) (Cancers)
[2020, 12(5):]

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A Case of Uterine Cervical Adenocarcinoma in Which Initial Total Laparoscopic Hysterectomy Was Performed for Suspected Atypical Endometrial Hyperplasia.

Toshinari Muramatsu, Taro Sugiyama, Yuki Kuriyama, Takatoshi Manabe, Ippei Oiwa, Rie Nakajima, Chisa Narayama, Tomoaki Narayama, Tetsuji Iida, Kenichi Goya, Hitomi Tsukada, Hironobu Maeda, Mikio Mikami,

The patient was a 69-year-old multiparous female (gravida/para, 3/3) who had hypertension and arrhythmia. Her history included cerebral infarction treated with conservative therapy. She visited our hospital for atypical genital bleeding. She was diagnosed with atypical glandular cells (AGC) based on cervical cytology, atypical cells in endometrial cytology, and atypical ... Read more >>

Tokai J Exp Clin Med (The Tokai journal of experimental and clinical medicine)
[2020, 45(1):5-9]

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Management of Stage IIB Cervical Cancer: an Overview of the Current Evidence.

Shinya Matsuzaki, Maximilian Klar, Mikio Mikami, Muneaki Shimada, Brendan H Grubbs, Keiichi Fujiwara, Lynda D Roman, Koji Matsuo,

<h4>Purpose of review</h4>To review and discuss the present evidence of surgery- and radiation-based treatment strategies for stage IIB cervical cancer.<h4>Recent findings</h4>Recently, two randomized controlled trials compared the efficacy of neoadjuvant chemotherapy followed by radical hysterectomy (NACT + RH) with that of concurrent chemoradiotherapy (CCRT) for stage IB3-IIB cervical cancer. When ... Read more >>

Curr Oncol Rep (Current oncology reports)
[2020, 22(3):28]

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A retrospective study for investigating the relationship between old and new staging systems with prognosis in ovarian cancer using gynecologic cancer registry of Japan Society of Obstetrics and Gynecology (JSOG): disparity between serous carcinoma and clear cell carcinoma.

Wataru Yamagami, Satoru Nagase, Fumiaki Takahashi, Kazuhiko Ino, Toru Hachisuga, Mikio Mikami, Takayuki Enomoto, Hidetaka Katabuchi, Daisuke Aoki,

OBJECTIVE:International Federation of Gynecology and Obstetrics (FIGO) staging for ovarian, fallopian tube, and peritoneal cancers was revised in 2014. The aim of this study is to clarify whether the revised FIGO2014 staging reflects the prognosis of patients with ovarian cancer by histological type in Japan. METHODS:We extracted 9,747 patients who ... Read more >>

J Gynecol Oncol (Journal of gynecologic oncology)
[2020, 31(4):e45]

Cited: 2 times

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Survival outcome and perioperative complication related to neoadjuvant chemotherapy with carboplatin and paclitaxel for advanced ovarian cancer: A systematic review and meta-analysis.

Hiroko Machida, Hideki Tokunaga, Koji Matsuo, Noriomi Matsumura, Yoichi Kobayashi, Tsutomu Tabata, Masanori Kaneuchi, Satoru Nagase, Mikio Mikami,

<h4>Objective</h4>To compare the effectiveness and safety of neoadjuvant chemotherapy with carboplatin/paclitaxel followed by interval debulking surgery (NACT-IDS) to primary debulking surgery plus postoperative chemotherapy (PDS) for advanced ovarian cancer.<h4>Methods</h4>A comprehensive systematic review and meta-analysis were conducted by an Expert Panel of the Japan Society of Gynecologic Oncology Ovarian Cancer Committee. ... Read more >>

Eur J Surg Oncol (European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology)
[2020, 46(5):868-875]

Cited: 2 times

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A Case of Recurrent Peritoneal Cancer in Which an Antitumor Effect Was Obtained Using a Combination of Etoposide and a Chinese Herbal Medicine with Maintenance of Daily Life.

Toshinari Muramatsu, Tetsuji Iida, Yuki Kuriyama, Takatoshi Manabe, Ippei Oiwa, Rie Nakajima, Chisa Narayama, Tomoaki Narayama, Noriko Miyatake, Kenichi Goya, Hironobu Maeda, Mikio Mikami,

The patient was a 50-year-old multiparous female (gravida/para 4/2) who had divorced. She was followed up for 1 year and 5 months after completion of initial treatment for peritoneal cancer (preoperative chemotherapy + optimal surgery + chemotherapy). A gradual increase in the tumor marker CA125 occurred, and computed tomography and ... Read more >>

Tokai J Exp Clin Med (The Tokai journal of experimental and clinical medicine)
[2019, 44(4):90-93]

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