Takayuki Iriyama

ORCID: 0000-0001-7970-6695 · 15 papers in corpus · active 2017-2026

Study types

  • article 7
  • preprint 3
  • case-report 2
  • other 2
  • dataset 1

Condition tags

  • adenomyosis 13
  • endometriosis 4
  • dysmenorrhea 2
  • infertility 2
  • mesh:D004715 1
  • chronic_pelvic_pain 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…

article 2025
BMC pregnancy and childbirth ·doi:10.1186/s12884-025-08454-7

With the increasing incidence of autism spectrum disorder (ASD), various risk factors for ASD have been identified. Among them, maternal immune activation (MIA), which can be triggered by inflammation via elevated proinflammatory cytokines,…

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…

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 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…

article 2023
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians ·doi:10.1080/14767058.2023.2226789

Objectives Although adenomyosis is reportedly associated with adverse pregnancy outcomes, clinical factors related to the high risk of obstetric complications are unclear. This study aimed to elucidate the characteristics of adenomyosis les…

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 …

article 2019
·doi:10.14390/jsshp.hrp2019-015

Endometriosis and adenomyosis not only cause symptoms such as dysmenorrhea, chronic pelvic pain, and infertility, but have also recently been implicated in a range of obstetric complications. The association between endometriosis and adenom…

dataset 2017
·doi:10.6084/m9.figshare.4738021

Objective: To evaluate the potential impact of adenomyosis on the pregnancy outcomes by retrospectively investigating adenomyosis-complicated pregnancy cases. Methods: We performed a retrospective case–control study. Forty-nine singleton pr…

article 2017
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians ·doi:10.1080/14767058.2017.1285895

OBJECTIVE: To evaluate the potential impact of adenomyosis on the pregnancy outcomes by retrospectively investigating adenomyosis-complicated pregnancy cases. METHODS: We performed a retrospective case-control study. Forty-nine singleton pr…