Sang-Hee Yoon

OBJECTIVE: To determine whether hysterectomy for benign diseases is associated with the risk of dementia in middle-aged women. METHODS: We conducted a retrospective cohort study using data from the Korean National Health Insurance Service …

OBJECTIVE: Sex-, age-related discrepancies in development of chronic kidney disease (CKD) suggest that sex hormones play important roles in the development of CKD. We aimed to investigate the effect of levonorgestrel intrauterine system (LN…

Endometriosis, a prevalent but debilitating condition affecting women, poses significant challenges in diagnosis and management. The current 2024 guideline, developed by the Korean Society of Endometriosis (KSE), builds upon the 2018 KSE gu…

This study aimed to evaluate the association between hysterectomy and the risk of thyroid cancer and benign thyroid disorders in South Korean women. A retrospective cohort study was conducted using Korean National Insurance data from 2002 t…

OBJECTIVES: This study aimed to investigate the risk of osteoarthritis associated with menopausal hormone therapy (MHT). METHODS: This population-based retrospective cohort study used a database of Korean health insurance claims (2007-2020…

Both the uterus and breasts have sex hormone dependence, yet there are few studies on the association between breast disease and uterine fibroids (UFs). The purpose of this study was to investigate the incidence of benign breast disease (BB…

IMPORTANCE: Women who undergo surgical hysterectomy before natural menopause may have an earlier increase in hematocrit and storage iron levels than those who continue menstruation, thereby increasing the risk of cardiovascular disease (CVD…

BACKGROUND: Venous thrombosis associated with the use of oral contraceptives (OCs) occurs mostly in the deep veins of the lower extremity. A lesion of the upper extremity is rare, and the majority of thrombotic events that occur in the supe…

OBJECTIVE: To evaluate the risks of developing gestational diabetes (GDM) and pregnancy-induced hypertension (PIH) in women with polycystic ovary syndrome (PCOS) using data from Korea's National Health Insurance Service. METHOD: The PCOS g…

BACKGROUND: Several population-based studies and observational studies have shown that oophorectomy is associated with an increased risk of colorectal cancer (CRC), and hormone replacement therapy has been associated with a reduction in the…

BACKGROUND: We describe a case of a rupture-mediated large uterine defect, which occurred on the 30th gestation week presenting a protruding amniotic sac sac without fetal compromise after a laparoscopic electromyolysis. CASE PRESENTATION:…