Papers - SAITOU Tsuyoshi

Pregnancy-specific beta-1-glycoprotein 6 is a potential novel diagnostic biomarker of placenta accreta spectrum.

Hazuki Kashiwagi, Tasuku Mariya, Mina Umemoto, Shiori Ogawa, Yoshihiko Hirohashi, Yuya Fujibe, Terufumi Kubo, Masayuki Someya, Tsuyoshi Baba, Shinichi Ishioka, Toshihiko Torigoe, Tsuyoshi Saito

Medical molecular morphology    2023.10  [Domestic journal]

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Early diagnosis is essential for the safer perinatal management of placenta accreta spectrum (PAS). We used transcriptome analysis to investigate diagnostic maternal serum biomarkers and the mechanisms of PAS development. We analyzed eight formalin-fixed paraffin-embedded placental specimens from two placenta increta and three placenta percreta cases who underwent cesarean hysterectomy at Sapporo Medical University Hospital between 2013 and 2019. Invaded placental regions were isolated from the uterine myometrium and RNA was extracted. The transcriptome difference between normal placenta and PAS was analyzed by microarray analysis. The PAS group showed markedly decreased expression of placenta-specific genes such as LGALS13 and the pregnancy-specific beta-1-glycoprotein (PSG) family. Term enrichment analysis revealed changes in genes related to cellular protein catabolic process, female pregnancy, autophagy, and metabolism of lipids. From the highly dysregulated genes in the PAS group, we investigated the expression of PSG family members, which are secreted into the intervillous space and can be detected in maternal serum from the early stage of pregnancy. The gene expression level of PSG6 in particular was progressively decreased from placenta increta to percreta. The PSG family, especially PSG6, is a potential biomarker for PAS diagnosis.

DOI PubMed

卵巣癌に対するPARP阻害薬の中期成績と有害事象・内服アドヒアランスの関係性の検討

萬 和馬, 松浦 基樹, 有元 千紘, 黒川 晶子, 玉手 雅人, 齋藤 豪

日本癌治療学会学術集会抄録集 ( (一社)日本癌治療学会 )  61回   O65 - 5  2023.10

小腸癌の子宮転移の一例

長尾 沙智子, 黒川 晶子, 玉手 雅人, 幅田 周太朗, 秋元 太志, 松浦 基樹, 岩崎 雅宏, 齋藤 豪

日本臨床細胞学会雑誌 ( (公社)日本臨床細胞学会 )  62 ( Suppl.2 ) 525 - 525  2023.10

子宮移植実現に向けた献体トレーニング

玉手 雅人, 松浦 基樹, 長尾 沙智子, 黒川 晶子, 秋元 太志, 馬場 剛, 齋藤 豪

Organ Biology ( (一社)日本臓器保存生物医学会 )  30 ( 3 ) 111 - 111  2023.10

Endocrinological and Metabolic Heterogeneity is low in Japanese Women with Polycystic Ovary Syndrome.

Tsuyoshi Baba, Toshiaki Endo, Tasuku Mariya, Yoshika Kuno, Hiroyuki Honnma, Mika Kanaya, Tsuyoshi Saito

Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC     102217 - 102217  2023.09  [International journal]

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OBJECTIVE: This study aims to evaluate the endocrine differences among polycystic ovary syndrome (PCOS) phenotypes in Japanese women. METHODS: 118 Japanese women that we diagnosed with PCOS agreed to be included in the study. The study group was classified into the following four phenotypes: A) hyperandrogenism (HA); ovulatory disorder (OvD) and polycystic ovary morphology (PCOM); B) HA and OvD; C) HA and PCOM; and D) OvD and PCOM. We also recruited 66 healthy Japanese women to the study as control participants. Age, body mass index, androgens, luteinizing hormone, follicle-stimulating hormone, and insulin resistance index were evaluated and compared. RESULTS: The proportions of phenotypes A, B, C, and D were 57/120 (47.5%), 4/120 (3.3%), 13/120 (10.8%), and 46/120 (38.3%), respectively. The proportion of phenotype B was too small; therefore, phenotypes A and B were grouped as classical PCOS for intergroup comparisons. The luteinizing hormone/follicle-stimulating hormone ratio in the classical PCOS group was higher than that in the phenotype D group (P < 0.001). Androgen concentrations in the phenotype D group were significantly lower than those in the other groups (P < 0.01). Phenotype D was more common in lean women with PCOS. The surrogate marker of insulin resistance (homeostasis model assessment of insulin resistance (HOMA-IR)) was not different irrespective of PCOS and its phenotypes. CONCLUSION: Except for androgens, endocrine differences by PCOS phenotype are not evident, suggesting that diversity among patients with PCOS is relatively low in Japanese women.

DOI PubMed

子宮原発骨肉腫の1例

南 香穂, 嶋田 浩志, 今 沙織, 鈴木 美紀, 玉手 雅人, 幅田 周太朗, 松浦 基樹, 岩崎 雅宏, 齋藤 豪

北日本産科婦人科学会総会・学術講演会プログラム・抄録集 ( 東北連合産科婦人科学会・北日本産科婦人科学会 )  70回   65 - 65  2023.09

卵巣移動術後に発生した卵巣腫瘍を腹腔鏡下に摘出した2例の検討

南 怜毅, 鹿内 智史, 和田 渚, 杉田 奈穂子, 玉手 雅人, 幅田 周太朗, 齋藤 豪

北日本産科婦人科学会総会・学術講演会プログラム・抄録集 ( 東北連合産科婦人科学会・北日本産科婦人科学会 )  70回   53 - 53  2023.09

Laparoscopic retrovesical lower uterine segment bypass for hysterectomy with previous caesarean section: Hung Up the Bladder Bypass (HUBB) technique.

Masato Tamate, Motoki Matsuura, Nagisa Wada, Takaki Adachi, Kazuma Yorozu, Chihiro Arimoto, Tsuyoshi Saito

Journal of gynecology obstetrics and human reproduction     102629 - 102629  2023.07  [International journal]

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Patients with a history of cesarean section and a highly adherent bladder may have difficulty in bladder dissection and may suffer damage. It may also be difficult to orient the patient for repair in the event of damage. In such cases, dissection from the side between the bladder and cervix is a good way to avoid complication. This video reviews the steps of the HUBB technique procedure, provides tips and tricks for performing a successful adhesiolysis, and illustrates the procedure's adaptability. The first is the identification of the uterine artery and its position. Step2, a Laparoscopic retrovesical lower uterine segment bypass is created. Step3 a Hung Up the Bladder Bypass is created, the bladder is completely dissected. Step4, an adhesiolysis and leak test is performed. In this report, we would like to introduce a technique for creating a retrovesical lower uterine segment bypass using a laparoscope and traction on the bypass to dissect the bladder.

DOI PubMed

Changes in preterm and extremely preterm birth rates in Japan after the introduction of obstetrical practice guidelines in 2008.

Satoshi Shimano, Takashi Yamada, Kazutoshi Cho, Kazuo Sengoku, Tasuku Mariya, Tsuyoshi Saito

The journal of obstetrics and gynaecology research    2023.07  [International journal]

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AIM: Obstetrical guidelines were established in Japan in 2008, and obstetrical diagnoses and treatments were subsequently standardized nationally. We examined changes in the preterm birth rate (PTBR) and extremely preterm birth rate (EPTBR) following the introduction of such guidelines. METHODS: Information on 50 706 432 live births in Japan between 1979 and 2021, including Japanese reproductive medicine, the childbearing age of pregnant women, and the employment status of reproductive-age women between 2007 and 2020, were obtained from the Japanese government and academic societies. Regression analysis was used to compare chronological changes nationally and those of eight Japanese regions. Regional and national average PTBRs and EPTBRs from 2007 to 2020 were compared by using a repeated measures analysis of variance. RESULTS: From 1979 to 2007, PTBRs and EPTBRs in Japan increased significantly. However, from 2008, the national PTBR and EPTBR decreased until 2020 (p < 0.001) and 2019 (p = 0.02), respectively. From 2007 to 2020, overall PTBR and EPTBR were 5.68% and 0.255%, respectively. A significant difference in the PTBR and EPTBR existed between the eight Japanese regions. During this period, the number of pregnancies using assisted reproductive technology increased from 19 595 to 60 381, pregnant women became older, the employment rate of those of reproductive age increased, and nonregular employment was 54%, which was 2.5 times higher than for men. CONCLUSIONS: In Japan, after obstetrical guidelines were enacted in 2008, PTRBs decreased significantly even under the pressure of increasing preterm births. Countermeasures may be necessary for regions showing high PTBRs.

DOI PubMed

当院における婦人科癌に対するがん遺伝子パネル検査の現状と課題

野藤 五沙, 真里谷 奨, 田中 佑弥, 室田 文子, 寺本 瑞絵, 松浦 基樹, 岩崎 雅宏, 石川 亜貴, 高田 弘一, 櫻井 晃洋, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  65回   288 - 288  2023.07

プラチナ感受性再発卵巣がんに対するオラパリブ,ニラパリブ維持療法の比較検討

有元 千紘, 松浦 基樹, 足立 岳貴, 萬 和馬, 黒川 晶子, 西村 庸子, 玉手 雅人, 磯山 響子, 秋元 太志, 幅田 周太朗, 岩崎 雅宏, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  65回   350 - 350  2023.07

【我々はこうしている～子宮頸癌手術におけるMISの工夫】我々が行う子宮頸癌に対する腹腔鏡下広汎子宮全摘術の工夫

松浦 基樹, 玉手 雅人, 長尾 沙智子, 黒川 晶子, 秋元 太志, 諸井 明仁, 幅田 周太朗, 岩崎 雅宏, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  65回   160 - 160  2023.07

献体による手術トレーニングの立ち上げと運営のコツ-本邦の手術を今後も安全かつ世界最高水準で続けるために 日本の持続的CSTに必要な横断的で多角的な思考とは?

玉手 雅人, 松浦 基樹, 齋藤 豪

医学教育 ( (一社)日本医学教育学会 )  54 ( Suppl. ) 72 - 72  2023.07

当科における卵巣組織凍結の現状報告と北海道における小児科医の卵巣組織凍結に対する意識調査

長尾 沙智子, 玉手 雅人, 春日 芙貴子, 西村 庸子, 松浦 基樹, 久野 芳佳, 馬場 剛, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  65回   387 - 387  2023.07

子宮頸部腺癌の生検組織における間質線維化反応の臨床的意義

秋元 太志, 松浦 基樹, 玉手 雅人, 岩崎 雅宏, 幅田 周太朗, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  65回   316 - 316  2023.07

Cervical conization with endoCUT mode applying gastrointestinal endoscopic polypectomy technique.

Masato Tamate, Motoki Matsuura, Tsuyoshi Saito

Obstetrics & gynecology science    2023.06  [International journal]

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OBJECTIVE: To show how endoCUT (COMPANY, CITY, STATE, COUNTRY) mode can be safely managed with cervical conization. METHODS: Demonstration of the technique and explanation of endoCUT and soft coagulation mode with narrated video footage. Cervical conization is a therapeutic and diagnostic procedure performed for the diagnosis of cervical intraepithelial lesions and cervical cancer. Specific methods include cold scalpel, ultrasonically activated device and laser, and loop electrosurgical excision procedure (LEEP), which involves transpiration and partial excision. The endoCUT mode and soft coagulation in VIO3 (COMPANY, CITY, STATE, COUNTRY) were used to perform cervical conical resection safely and at low cost (Fig. 1). The endoCUT mode was originally developed for polypectomy in gastrointestinal endoscopy, where no counter traction can be applied [1,2]. RESULTS: The endoCUT mode approach to cervical conization with several key strategies to minimize blood loss and ensure safety: 1) incisions can be made in close contact; 2) resection can be performed with minimal contact with the lesion; 3) control of bleeding from the resected transection by soft coagulation; and 4) low running cost of endoCUT mode. CONCLUSION: Conventionally, cervical conical resection has been performed by using a device capable of making a close incision (cold scalpel, ultrasonically activated device and laser, and LEEP etc.), but there have been issues with bleeding control and cost. Here, we present a new technique using the endoCUT mode and several strategies for safe and effective resection.

DOI PubMed

深層学習によるHE染色データを用いた子宮内膜癌プロファイル判定の適否に関する検討

梅本 美菜, 真里谷 奨, 永田 舞, 堀米 俊弘, 新開 翔太, 杉田 真太朗, 金関 貴幸, 松浦 基樹, 岩崎 雅宏, 廣橋 良彦, 長谷川 匡, 鳥越 俊彦, 齋藤 豪, 藤野 雄一

日本医療情報学会春季学術大会プログラム・抄録集 ( (一社)日本医療情報学会 )  27回   122 - 123  2023.06

Therapeutic efficacy of a four-year treatment with eribulin in a patient with uterine leiomyosarcoma: A case report.

Motoki Matsuura, Kazuma Yorozu, Sachiko Nagao, Shoko Kurokawa, Masato Tamate, Taishi Akimoto, Tsuyoshi Saito

Gynecologic oncology reports   47   101205 - 101205  2023.06  [International journal]

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Uterine leiomyosarcoma (LMS) is a gynecological malignancy with an extremely poor prognosis. Multiple new therapeutic agents, including pazopanib, trabectedin, and eribulin, have been clinically applied to treat uterine LMS, and their therapeutic effects are expected. We encountered one patient with advanced recurrent uterine LMS who achieved a partial response to a four-year treatment with eribulin. A 31-year-old woman was diagnosed with stage 2B LMS. After the first recurrence, Gemcitabine, Docetaxel (GD) therapy was administered, and complete response (CR) was achieved. However, 2 years and 10 months later, recurrence occurred at the vaginal cuff, and GD therapy and doxorubicin hydrochloride were administered, resulting in CR. Five months later, she experienced another recurrence at the same location and was treated with eribulin. To date, 53 courses of eribulin have been administered and are currently ongoing. Maintaining low neutrophil-to-lymphocyte ratio and low platelet-to lymphocyte ratio in this manner is considered to be one of the reasons why eribulin continues to be effective. We encountered a rare case in which eribulin was administered for the longest period of time, and produced an observable effect in uterine LMS.

DOI PubMed

深層学習によるHE染色データを用いた子宮内膜癌プロファイル判定の適否に関する検討

梅本 美菜, 真里谷 奨, 永田 舞, 堀米 俊弘, 新開 翔太, 杉田 真太朗, 金関 貴幸, 松浦 基樹, 岩崎 雅宏, 廣橋 良彦, 長谷川 匡, 鳥越 俊彦, 齋藤 豪, 藤野 雄一

日本医療情報学会春季学術大会プログラム・抄録集 ( (一社)日本医療情報学会 )  27回   122 - 123  2023.06

「助手力」の教育 助手力を構成する要素とは何か,どのように教育するのか

梅本 美菜, 松浦 基樹, 足立 岳貴, 有本 千紘, 黒川 晶子, 西村 庸子, 玉手 雅人, 秋元 太志, 幅田 周太朗, 岩崎 雅弘, 齋藤 豪

産婦人科手術 ( (株)メジカルビュー社 )  ( 34 ) 162 - 162  2023.06