Zen Watanabe

ORCID: 0000-0002-0621-4435 · 4 papers in corpus
observational 2025
Impact of maternal smoking and secondhand smoke exposure during singleton pregnancy on placental abruption: analysis of a prospective cohort study (the Japan Environment and Children's Study)
BMJ open ·doi:10.1136/bmjopen-2024-089499

OBJECTIVES: This study aimed to investigate the association and population-attributable fraction (PAF) of maternal smoking and secondhand smoke (SHS) exposure during pregnancy with placental abruption. DESIGN: Prospective cohort study. SE…

observational 2021
Association of subjective health and abnormal cervical cytology in Japanese pregnant women: An adjunct study of the Japan Environment and Children's Study
Preventive medicine reports ·doi:10.1016/j.pmedr.2021.101525

This study examines the association between abnormal cervical cytology and subjective health in pregnant women, as an adjunct to the Japan Environment and Children's Study, which cross-sectionally analyzed a subset of the prospective cohort…

case-report 2020
Successful pregnancy and vaginal delivery after laparoscopic excision of a congenital uterine cervical diverticulum: A case report
The journal of obstetrics and gynaecology research ·doi:10.1111/jog.14255

Uterine cervical diverticulum is a very rare malformation. Affected patients are reported to have infertility issues and problems during the perinatal period. A 32-year-old nulliparous woman visited another obstetrics and gynecology hospita…

case-report 2013
A Case of Quiescent Nuck's Hydrocele with Endometriosis Revealed after Laparoscopic Surgery
·doi:10.5180/jsgoe.29.168

Objective: To report a case of a quiescent Nuck's hydrocele with endometriosis revealed after laparoscopic surgery.Design: Case report.Setting: Department of Obstetrics and Gynecology, Tohoku University Hospital.Patient: A 36-year-old woman…