Oskari Heikinheimo

CONTEXT: Combined oral contraceptives (COCs) alter inflammatory status and lipid metabolism. Whether different estrogens have different effects is poorly understood. OBJECTIVE: We compared the effects of COCs containing ethinyl estradiol (E…

ObjectiveTo compare the effects of two formulations of combined oral contraceptives (COCs), estradiol valerate (EV) and ethinyl estradiol (EE) combined with dienogest (DNG), and DNG-only, on glucose tolerance.Study designWe performed a rand…

ObjectiveTo study reproductive outcomes, and pregnancy and delivery complications after conservative or operative treatment of rectovaginal endometriosis during long-term follow-up.DesignRetrospective cohort study.SettingUniversity hospital…

INTRODUCTION: The association between endometriosis and breast cancer is unclear. We assessed the risk of breast cancer in women with surgically verified endometriosis, with special focus on the age at cancer diagnosis, time from endometrio…

ObjectiveIn this nationwide study we assessed the use and factors associated with future in vitro fertilization (IVF) treatment after induced abortion.Materials and methodsThe study population was collected by means of record linkage betwee…

STUDY QUESTION Is all-cause and cause-specific mortality increased among women with surgically verified endometriosis? SUMMARY ANSWER The all-cause and cause-specific mortality in midlife was lower throughout the follow-up among women with …

STUDY QUESTION: Is all-cause and cause-specific mortality increased among women with surgically verified endometriosis? SUMMARY ANSWER: The all-cause and cause-specific mortality in midlife was lower throughout the follow-up among women wit…

Abstract Uterine adenomyosis is a relatively common disorder characterized by the abnormal presence of endometrial glands and stroma in the myometrium. The estimated prevalence of adenomyosis varies between 20-30% in hysterectomy specimens.…

We assessed the association of surgically verified endometriosis and risk of non-gynecological cancers according to the type of endometriosis (i.e., ovarian, peritoneal and deep infiltrating endometriosis). All diagnoses of endometriosis co…

We assessed the association of surgically verified endometriosis and risk of non-gynecological cancers according to the type of endometriosis (i.e., ovarian, peritoneal and deep infiltrating endometriosis). All diagnoses of endometriosis co…

Uterine leiomyomas (ULs) are benign tumors that are a major burden to women's health. A genome-wide association study on 15,453 UL cases and 392,628 controls was performed, followed by replication of the genomic risk in six cohorts. Effects…

OBJECTIVE: To assess the risks of gynecologic cancer according to the type of endometriosis in women with surgically verified endometriosis. METHODS: This is a population-based study of women with surgically verified endometriosis retrieved…

Introduction To study the trends in incidence rate, type and surgical treatment, and patient characteristics of surgically verified endometriosis during 1987-2012. Material and methods This is a register-based cohort study. We identified wo…

Hormonal treatment of abnormal uterine bleeding (AUB), especially bleeding related to endometrial causes (AUB-E), ovulatory dysfunction (AUB-O) and coagulopathy (AUB-C), and to some extent, uterine leiomyomas and adenomyosis, has become the…

INTRODUCTION: To study the trends in incidence rate, type and surgical treatment, and patient characteristics of surgically verified endometriosis during 1987-2012. MATERIAL AND METHODS: This is a register-based cohort study. We identified …

Urinary tract endometriosis (UTE) is a rare form of deep infiltrating endometriosis. We studied the operative treatment of UTE and evaluated postoperative recurrences and fertility outcomes. This is a retrospective cohort study of 53 women …

Importance Heavy menstrual bleeding (HMB) is a common complaint among reproductive-aged women, which negatively affects their health as well as their social, professional, and family lives. Modern medical management usually provides effecti…

OBJECTIVE: To study the density of nerve fibers in cases of deep infiltrating endometriosis (DIE) of the rectovaginal septum in relation to various clinical factors. DESIGN: A research laboratory-based study. SETTING: A tertiary center toge…

OBJECTIVE: To evaluate the rate of complications, factors associated with complications and long-term results in colorectal resections for the treatment of deep infiltrating endometriosis of the bowel wall. DESIGN: Retrospective study. SETT…

STUDY QUESTION: What is the optimal management of women with endometriosis based on the best available evidence in the literature? SUMMARY ANSWER: Using the structured methodology of the Manual for ESHRE Guideline Development, 83 recommend…

Study question: What is the optimal management of women with endometriosis based on the best available evidence in the literature?Summary answer: Using the structured methodology of the Manual for ESHRE Guideline Development, 83 recommendat…

The levonorgestrel intrauterine system (LNG-IUS), originally designed for long-term contraceptive use, has been on the Scandinavian market for approximately 20 years. Novel clinical indications for the LNG-IUS, derived mainly from investiga…

Of women of reproductive age, 6 to 10% are estimated to be affected by endometriosis. Growth of tissue resembling the uterine mucosa outside the uterine cavity often causes severe menstrual pain, chronic pelvic pain and infertility for the …