研究者業績

大橋 麻衣

オオハシ マイ  (Mai Ohashi)

基本情報

所属
自治医科大学 産科婦人科学講座 助教

J-GLOBAL ID
201401055144099939
researchmap会員ID
B000238750

研究キーワード

 3

学歴

 2

論文

 15
  • 香川 景子, 左 勝則, 水津 枝理, 新井 雄太, 大橋 麻衣, 杉山 瑞穂, 小古山 学, 高橋 宏典, 藤原 寛行
    日本周産期・新生児医学会雑誌 60(Suppl.1) P235-P235 2024年6月  
  • 新井 雄太, 左 勝則, 豊田 祥子, 香川 景子, 杉山 瑞穂, 大橋 麻衣, 高橋 宏典, 藤原 寛行
    関東連合産科婦人科学会誌 61(2) 206-206 2024年5月  
  • 大橋 麻衣, 左 勝則, 杉山 瑞穂, 藤本 揚子, 佐藤 優美, 藤原 寛行
    日本受精着床学会雑誌 41(1) 30-38 2024年3月  
  • 佐藤 優美, 左 勝則, 藤本 揚子, 杉山 瑞穂, 大橋 麻衣, 藤原 寛行
    日本産科婦人科学会雑誌 76(臨増) S-590 2024年2月  
  • Kohei Tamura, Hironori Takahashi, Suzuki Tatsuya, Mai Ohhashi, Hiroyuki Fujiwara
    Cureus 15(9) e45657 2023年9月  
    Assisted reproductive technology (ART) requires transvaginal oocyte retrieval (TVOR), and ovarian bleeding after TVOR rarely occurs. We present a case of a 37-year-old woman (0-gravida) who was diagnosed with possible hemorrhagic telangiectasia (HHT) and had a history of three laparotomies for ovarian bleeding and an inclusion cyst adjacent to the right ovary after the third operation. HHT is a hereditary disease characterized by spontaneous hemorrhage of some organs, such as the nose, brain, lungs, gastrointestinal tract, and liver. She desired ART after fertility treatment and then had abdominal pain with ovarian swelling five days after TVOR. Moreover, both the right ovary and inclusion cyst were gradually swollen with hematoma. Finally, abdominal pain and the hemoglobin level deteriorated, necessitating an emergency surgery on the eighth day. We notify reproductive physicians that patients with HHT may readily develop ovarian bleeding with or without inclusion cysts after TVOR, although inclusion cysts may also be associated with late-onset bleeding.
  • 杉山 瑞穂, 鈴木 達也, 大橋 麻衣, 藤本 揚子, 高橋 宏典, 藤原 寛行
    日本受精着床学会雑誌 40(2) 246-251 2023年9月  
  • Yuki Shigenobu, Shiho Nagayama, Yumi Manaka, Mai Ohashi, Taro Kubo, Hironori Shimozawa, Shigeru Nakamura, Hideo Nakai, Hironori Takahashi
    The journal of obstetrics and gynaecology research 48(10) 2615-2619 2022年10月  
    Caudal regression syndrome (CRS) is rare congenital malformation, which is characterized by abnormal development of the lower end of the spine and complicated with neurodevelopmental disorders of vesico-rectal functions and the lower extremities. We report the case of a woman with CRS who became pregnant and gave birth following continent bladder reconstruction (CBR) for intractable urinary incontinence. A 25-year-old primigravida woman with CRS became pregnant naturally and was referred to our department. She had undergone CBR in our institute at 14 years old. Emergency cesarean section (CS) was performed at 30 + 5 weeks of gestation due to severe preeclampsia. This is the first report of a woman with CRS who became pregnant and gave birth following CBR. A multidisciplinary team is needed to manage pregnant women with CRS following CBR. Collaboration with a urologist is especially important for managing pregnancy and performing CS. The CBR is performed for the purpose of improving quality of life by gaining urinary continence and may increase sexual behavior in women with CRS, and so obstetricians may encounter pregnancies more frequently in the future.
  • 大橋 麻衣, 種市 明代, 土井 綾香, 伊藤 千紗, 小柳 貴裕, 高橋 寿々代, 竹井 裕二, 薄井 里英, 高橋 宏典, 藤原 寛行, 丹波 美織, 福嶋 敬宜
    関東連合産科婦人科学会誌 59(1) 111-115 2022年3月  
  • Mai Ohashi, Hironori Takahashi, Yosuke Baba, Hirotada Suzuki, Shiho Nagayama, Kenji Horie, Manabu Ogoyama, Rie Usui, Akihide Ohkuchi, Shigeki Matsubara
    Clinical and Experimental Obstetrics & Gynecology 49(1) 1-1 2022年1月20日  
  • Yoshimitsu Wada, Hironori Takahashi, Hirotada Suzuki, Mai Ohashi, Manabu Ogoyama, Shiho Nagayama, Yosuke Baba, Rie Usui, Tatsuya Suzuki, Akihide Ohkuchi, Hiroyuki Fujiwara
    European journal of obstetrics, gynecology, and reproductive biology 260 1-5 2021年5月  
    OBJECTIVE: To clarify the natural history of retained products of conception (RPOC) following abortion at less than 22 weeks of gestation, and those who show major bleeding during course observation. STUDY DESIGN: We retrospectively reviewed 640 patients who had spontaneous or artificial abortion at less than 22 weeks of gestation between January 2011 and August 2019 in our institute. Of those, patients with RPOC were included. The maternal background, RPOC characteristics, and subsequent complications including additional interventions were reviewed. RESULTS: Fifty-four patients with RPOC were included. The incidence of RPOC was 6.7 %. The median (interquartile range: IQR) RPOC length was 29 (20-38) mm. RPOC hypervascularity was observed in 26 (48 %) patients. The median (IQR) periods of RPOC flow disappearance and RPOC disappearance on ultrasound from abortive treatment were 50 (28-76) and 84 (50-111) days, respectively. Of the 54, 44 patients were selected for expectant management. Of the 44, 34 (77 %) patients were observed without intervention (recovery group); the other 10 (23 %) patients required additional interventions associated with subsequent bleeding (intervention group). Compared with the recovery group, heavy bleeding (> 500 mL) at abortion (6/10: 60 %) and RPOC hypervascularity (8/10: 80 %) were more frequently observed in the intervention group. CONCLUSION: Expectant management was successful in almost 80 % of patients with RPOC following abortion. The additional interventions were required in patients with heavy bleeding at abortion and RPOC hypervascularity.
  • Hironori Takahashi, Mai Ohhashi, Yosuke Baba, Shiho Nagayama, Manabu Ogoyama, Kenji Horie, Hirotada Suzuki, Rie Usui, Akihide Ohkuchi, Shigeki Matsubara
    European journal of obstetrics, gynecology, and reproductive biology 240 87-92 2019年9月  
    OBJECTIVES: To clarify the outcome of retained products of conception (RPOC) without placenta previa. STUDY DESIGN: This was a retrospective cohort study consisting of 59 patients who abdominally or vaginally gave birth to infants after 14 weeks without placenta previa and had RPOC between April 2006 and December 2018. Patients' background, characteristics, and outcomes were compared between those requiring and not-requiring intervention for RPOC. RESULTS: Of the 59 patients, pregnancies after assisted reproductive technology accounted for 18 (31%). The ultrasound-measured RPOC length was 4 cm (median) and 39 (66%) showed hypervascularity within RPOC. Interventions were required in 36 patients (61%), with all due to bleeding-related events. Multivariate regression analyses revealed that the interventions were significantly more likely in the following situations: younger than 35 years (aOR: 4.2, 95%CI: 1.1-18.5), RPOC length ≥4 cm (aOR: 8.6, 95%CI: 2.4-39.2), and RPOC hypervascularity (aOR: 4.6, 95%CI: 1.3-18.8). Methotrexate was administered to 8 patients, of whom 4 (50%) required further hemostatic interventions. CONCLUSION: In patients with RPOC without previa, 61 and 39% did and did not require hemostatic interventions, respectively. In the latter, a wait-and-see strategy resulted in the resolution of RPOC. Patients with larger RPOC (≥4-cm fragment length) and hypervascularity were significantly more likely to require hemostatic intervention.
  • Mai Ohhashi, Hironori Takahashi, Yosuke Baba, Hirotada Suzuki, Kenji Horie, Rie Usui, Akihide Ohkuchi, Takashi Watanabe, Shigeki Matsubara
    Hypertension Research in Pregnancy 5(2) 59-64 2017年  
  • 安部 まさき, 高橋 寿々代, 竹井 裕二, 葭葉 貴弘, 吉田 智香子, 大橋 麻衣, 町田 静生, 藤原 寛行, 鈴木 光明
    栃木県産婦人科医報 41 37-40 2015年3月  
  • Hiroyuki Fujiwara, Akihiro Shimoda, Yoshiki Ishikawa, Akiyo Taneichi, Mai Ohashi, Yoshifumi Takahashi, Takahiro Koyanagi, Hiroyuki Morisawa, Suzuyo Takahashi, Naoto Sato, Shizuo Machida, Yuji Takei, Yasushi Saga, Mitsuaki Suzuki
    Archives of public health = Archives belges de sante publique 73(1) 7-7 2015年  
    BACKGROUND: In Japan, the cervical cancer screening rate is extremely low. Towards improving the cervical cancer screening rate, encouraging eligible people to make an informed choice, which is a decision-making process that relies on beliefs informed by adequate information about the possible benefits and risks of screening, has attracted increased attention in the public health domain. However, there is concern that providing information on possible risks of screening might prevent deter from participating. METHODS: In total, 1,912 women aged 20-39 years who had not participated in screening in the fiscal year were selected from a Japanese urban community setting. Participants were randomly divided into 3 groups. Group A received a printed reminder with information about the possible benefits of screening, group B received a printed reminder with information about possible benefits and risks, and group C received a printed reminder with simple information only (control group). RESULTS: Out of 1,912 participants, 169 (8.8%) participated in cervical cancer screening. In the intervention groups, 137 (10.9%) participated in cervical cancer screening, compared to only 32 (4.9%) of the control group (p < 0.001). In addition, logistic regression analysis revealed that there was no significant difference in screening rate between group A and group B (p = 0.372). CONCLUSIONS: Providing information on the possible risks of screening may not prevent people from taking part in cervical cancer screening among a Japanese non-adherent population.
  • 大橋 麻衣, 藤原 寛行, 町田 静生, 葭葉 貴弘, 佐藤 尚人, 猿山 美幸, 高橋 寿々代, 永島 友美, 種市 明代, 竹井 裕二, 鈴木 光明
    栃木県産婦人科医報 40 10-13 2014年3月  

MISC

 36