Takahiro Seyama

ORCID: 0000-0002-3030-4713 · 11 papers in corpus · active 2022-2026

Study types

  • article 3
  • other 3
  • preprint 3
  • case-report 2

Condition tags

  • adenomyosis 10
  • endometriosis 2
  • dysmenorrhea 1
  • mesh:D004715 1
  • infertility 1
other 2026
Reproductive sciences (Thousand Oaks, Calif.) ·doi:10.1007/s43032-025-02045-9

The association between adenomyosis and uterine torsion, a rare, serious obstetric condition, remains unclear and has not been systematically investigated. This study aimed to elucidate the incidence, risk factors, and clinical characterist…

other 2025
Reproductive sciences (Thousand Oaks, Calif.) ·doi:10.1007/s43032-024-01758-7

Adenomyomectomy, a therapeutic option for women with adenomyosis who wish to preserve their fertility, has been reported to pose a risk of developing placenta accreta spectrum (PAS) and uterine rupture in future pregnancies. However, the sp…

preprint 2025
·doi:10.22541/au.174840847.70922257/v1

Objective: To elucidate the incidence, risk factors, and clinical characteristics of uterine torsion in pregnancies complicated by adenomyosis, which remains unstudied to date. Design: Retrospective cohort study. Setting: University Hospita…

case-report 2023
Case reports in obstetrics and gynecology ·doi:10.1155/2023/1637463

A uterine artery pseudoaneurysm (UAP) is a life-threatening complication during pregnancy and postpartum. Early diagnosis of exophytic UAP rupture is difficult due to the absence of vaginal bleeding. This study reports the case of a 31-year…

article 2023
Journal of perinatal medicine ·doi:10.1515/jpm-2023-0263

Abstract Objectives Adenomyosis is associated with unfavorable perinatal outcomes, and recent case reports show that some women with adenomyosis experience pain at the adenomyosis lesion during pregnancy and have detrimental perinatal outco…

preprint 2023
·doi:10.21203/rs.3.rs-2494154/v1

Abstract Background Adenomyosis is known to be associated with unfavorable perinatal outcomes, but the patient population among women with adenomyosis who is at high risk for adverse perinatal outcomes remains unclear. Recent case reports s…

article 2023
Journal of Obstetrics and Gynaecology Research ·doi:10.1111/jog.15849

AIM: We aimed to investigate the associations of endometriosis and adenomyosis with pregnancy complications by using a large-scale Japanese database. METHODS: We retrospectively analyzed 145 590 singleton pregnancies from the Japan Perinata…

other 2023
AJOG global reports ·doi:10.1016/j.xagr.2023.100265

BACKGROUND: Adenomyosis is associated with unfavorable perinatal outcomes; however, the effect of an adenomyomectomy on pregnancy outcomes remains unclear. Pregnancy following an adenomyomectomy has been reported to be associated with a hig…

preprint 2022
·doi:10.22541/au.166746976.62381783/v1

Objective To clarify the clinical characteristics of pain developing in adenomyosis lesions during pregnancy and the perinatal outcomes associated with this phenomenon. Study Design Retrospective cohort study. Setting A tertiary hospital in…

case-report 2022
Journal of Obstetrics and Gynaecology Research ·doi:10.1111/jog.15382

Imaging and histological changes occurring in adenomyosis due to pregnancy are unclear. A 38-year-old nulliparous woman presented with dysmenorrhea and infertility. Pelvic magnetic resonance imaging (MRI) showed diffuse-type adenomyosis. Fo…

article 2022
Journal of Obstetrics and Gynaecology Research ·doi:10.1111/jog.15195

Uterine fibroids are known to degenerate during pregnancy, but it is unknown if similar pathologic condition occurs in adenomyosis. A 38-year-old para 1 woman exhibited uterine tenderness and a markedly elevated inflammatory response at 22 …