Faculty Profiles - MASUYAMA Hisashi

Total laparoscopic wedge resection for an intramural ectopic pregnancy using an intraoperative ultrasound system: A case report.

Kotaro Kubo, Atsushi Fujikawa, Tomohiro Mitoma, Sakurako Mishima, Akiko Ohira, Satoe Kirino, Jota Maki, Eriko Eto, Hisashi Masuyama

Asian journal of endoscopic surgery 17 ( 2 ) e13303 2024.4

Language：English Publishing type：Research paper (scientific journal)

Intramural pregnancy is a rare form of ectopic pregnancy, and the optimal treatment remains uncertain. We describe a 33-year-old woman (gravida 2, para 0) who visited our hospital with suspected ectopic pregnancy. The patient was asymptomatic and hemodynamically stable. Transvaginal ultrasonography revealed pregnancy at 6 weeks of gestation and a gestational sac and fetal heartbeat in the anterior muscular layer of the uterus, away from the endometrium. The fetal sac measured 26 mm. The serum human chorionic gonadotropin (hCG) level had increased to 27 655 mIU/mL. Accordingly, the patient was diagnosed with an intramural ectopic pregnancy and underwent total laparoscopic wedge resection using intraoperative ultrasonography. The postoperative course was uneventful, and she was discharged after 4 days. Her serum hCG level normalized at 26 days postoperatively. This case indicates that intraoperative laparoscopic ultrasonography seems viable for treating intramural pregnancies.

DOI： 10.1111/ases.13303

帝王切開-疾患構造の変化に対応する新たな取り組み- 子宮創部菲薄化低減を目指す糸の役割 Barbed Sutureによる無結紮子宮再建

牧尉太, 増山寿

日本周産期・新生児医学会雑誌 59 ( 4 ) 479 - 481 2024.4

距離学習を用いた妊娠12-14週期の胎児心スクリーニング画像分類

大羽輝, 中藤光里, 末森彩乃, 三苫智裕, 三島桜子, 大平安希子, 牧尉太, 衛藤英理子, 増山寿

超音波医学 51 ( Suppl. ) S492 - S492 2024.4

周産期センターにおける医師の働き方改革への対応働き方改革を踏まえた日本産科婦人科学会グランドデザイン2023

増山寿, 中川慧, 井上大輔, 木村正

日本周産期・新生児医学会雑誌 59 ( 4 ) 604 - 606 2024.4

妊娠中期に卵巣子宮内膜症性嚢胞の予防的内容除去術を施行した2例

光井崇, 岡本遼太, 樫野千明, 久保光太郎, 鎌田泰彦, 中塚幹也, 増山寿

日本生殖医学会雑誌 69 ( 1-2 ) 105 - 106 2024.4

帝王切開-疾患構造の変化に対応する新たな取り組み- 子宮創部菲薄化低減を目指す糸の役割 Barbed Sutureによる無結紮子宮再建

牧尉太, 増山寿

日本周産期・新生児医学会雑誌 59 ( 4 ) 479 - 481 2024.4

距離学習を用いた妊娠12-14週期の胎児心スクリーニング画像分類

大羽輝, 中藤光里, 末森彩乃, 三苫智裕, 三島桜子, 大平安希子, 牧尉太, 衛藤英理子, 増山寿

超音波医学 51 ( Suppl. ) S492 - S492 2024.4

周産期センターにおける医師の働き方改革への対応働き方改革を踏まえた日本産科婦人科学会グランドデザイン2023

増山寿, 中川慧, 井上大輔, 木村正

日本周産期・新生児医学会雑誌 59 ( 4 ) 604 - 606 2024.4

Investigation of optimal weight gain during pregnancy: A retrospective analysis of the Japanese perinatal registry database. International journal

Jun Takeda, Naho Morisaki, Atsuo Itakura, Shigeru Aoki, Haruhiko Sago, Takeshi Nagamatsu, Hisashi Masuyama, Shigeki Matsubara, Takeshi Umazume, Nobuaki Mitsuda, Hiroaki Itoh, Tomoaki Ikeda

The journal of obstetrics and gynaecology research 50 ( 3 ) 403 - 423 2024.3

Language：English Publishing type：Research paper (scientific journal)

AIM: This study aimed to determine the weight gain during pregnancy that minimizes the predicted probability of various perinatal adverse events according to the pre-pregnancy body mass index (BMI) and make recommendations for optimal weight gain in Japan. METHODS: The Japan Society of Obstetrics and Gynecology perinatal database for 2015-2017 was used. From the 719 723 deliveries included in this database, parturients with underlying diseases or missing data were excluded, and 419 114 deliveries were analyzed. A questionnaire survey was also conducted to weigh each perinatal adverse event. For each of the nine outcomes, a restricted cubic spline model was made to estimate the association between the "expected gestational weight gain at 40 weeks" and the outcome risk. RESULTS: Since the classes of medical facilities were generally the same, weights were assigned according to the mean of the questionnaires rather than by the class of the facility. For each pre-pregnancy BMI, the weight gains during pregnancy that minimized the predicted probability of various adverse perinatal events were 12-15, 10-13, 7-10, and upper limit of 5 kg for the underweight, normal-weight, obese 1, and obese ≥2 groups, respectively. CONCLUSIONS: The weight gain during pregnancy that minimizes the predicted probability of various perinatal adverse events according to the pre-pregnancy BMI was established.

DOI： 10.1111/jog.15863

産婦健康診査事業の充実のための遠隔支援システムの検討

古谷真実, 大井伸子, 藤岡まゆみ, 増山寿

岡山県母性衛生 ( 38 ) 18 - 19 2024.3

Assessing the efficacy of simulation-based education for paramedics in extended focused assessment with sonography for trauma under physician guidance. International journal

Akiko Ohira, Jota Maki, Kohei Ageta, Hikari Nakato, Hikaru Oba, Tomohiro Mitoma, Sakurako Mishima, Kazumasa Tani, Satoe Kirino, Eriko Eto, Atsunori Nakao, Hisashi Masuyama

Scientific reports 14 ( 1 ) 4190 - 4190 2024.2

Language：English Publishing type：Research paper (scientific journal)

We investigated the effectiveness of simulation-based education in Focused Assessment with Sonography for Trauma (FAST) to increase the number of Emergency Medical Technicians (EMTs) capable of performing ultrasound examinations in vehicles under the guidance of a physician. Twenty-eight paramedics watched a 14-min video on the features of the ultrasound system, its use, and the scanning method for each part of the body. Each participant performed four FAST examinations using a portable ultrasound device, and the task performance was rated using the Task Specific Checklist (TSC) and Global Rating Scale (GRS). The time required for visualizing each examination site and each FAST was assessed. The mean time required for the first and fourth FAST was 144.6 ± 52.4 s and 90.5 ± 31.0 s, respectively. The time required for each test significantly decreased with repeated testing (p < 0.001). The time to complete FAST was significantly shortened for the pericardial cavity (33.4 ± 23.1/15.3 ± 10.6 s, p < 0.01), right thoracic cavity (25.2 ± 11.8/12.1 ± 8.3 s, p < 0.01), Morrison fossa (19.1 ± 10.8/10.8 ± 6.3 s, p < 0.05), and left thoracic cavity (19.0 ± 8.3/15.6 ± 8.3 s, p < 0.05). TSC and GRS scores were elevated, and all EMTs could obtain valid images. The combination of a brief video lecture and hands-on training significantly reduced the time required for FAST performance. Moreover, repeated practice enabled the EMTs to efficiently obtain accurate and clinically useful images.

DOI： 10.1038/s41598-024-54779-2