Nikolaos Vlahos

BACKGROUND: Adenomyosis can be categorized using various systems based on its extent, location, and severity. Depending on its location within the endometrium adenomyosis can be classified as intrinsic (inner myometrium) or extrinsic (outer…

Background Adenomyosis can be categorized using various systems based on its extent, location, and severity. Depending on its location within the endometrium adenomyosis can be classified as intrinsic (inner myometrium) or extrinsic (outer …

MicroRNAs (miRNAs) are key regulators of gene expression with critical roles in oncogenic signaling. Endometrial cancer (EC) has been redefined with the identification of POLE-ultramutated tumors which, despite their hypermutated phenotype,…

Objectives of Paediatric and Adolescent Gynaecology (PAG): PAG aims to foster a collaborative environment that bridges knowledge from various disciplines to ensure the highest quality of care for children and adolescents with gynaecological…

The aim of this systematic review was to examine if chronic or acute stress, measured by questionnaires or physiological biomarkers, has a separate impact on each different stage in the IVF process. A systematic search of peer-reviewed lite…

INTRODUCTION: Endometriosis, defined as the presence of endometrial glands and stroma outside the uterine cavity, mainly affects the pelvic viscera and peritoneum. Endometriosis can also occur at sites of surgical incisions on the abdominal…

Endometriosis, defined as the development of endometrial tissue outside of the uterine cavity, is a common gynecological disorder. The prevalence of pelvic endometriosis approaches 6%-10% in the general female population, and in women with …

INTRODUCTION: Polycystic ovarian syndrome (PCOS) affects 5-20% of females and is the most common cause of anovulatory infertility. Leptin seems to have an important role in reproduction. Many reproductive pathologies such as preeclampsia, P…

Humans interfere with a variety of endocrine disruptors on a daily basis, which may result in adverse health effects. Among them, Bisphenol-A (BPA) is the most debated endocrine disruptor, despite being widely studied, regarding its effects…

Despite the advances in the field of reproductive medicine, implantation failure represents a challenging condition affecting 10-30% of patients subjected to in vitro fertilization (IVF). Research has focused on the identification of molecu…

Endometriosis-related infertility describes a case of deteriorated fecundity when endometriosis is diagnosed. Numerous mechanisms have been proposed in an effort to delineate the multifaceted pathophysiology that induces impairment of repro…

(1) Background: Recurrent implantation failure (RIF) after IVF remains a challenging topic for fertility specialists and a frustrating reality for patients with infertility. Various approaches have been investigated and applied towards the …

Metabolomics emerged to give clinicians the necessary information on the competence, in terms of physiology and function, of gametes, embryos, and the endometrium towards a targeted infertility treatment, namely, assisted reproduction techn…

Ovarian insufficiency is described as a multifaceted issue typically encountered in the field of assisted reproduction. The three main identified diagnoses of ovarian insufficiency include premature ovarian failure (POF), poor ovarian respo…

The risk of recurrence after surgery is a major problem in women who are suffering from endometriosis. The prescription oral contraceptives (OCs) in the treatment of endometriosis-related pain, in women who do not desire fertility, is still…

The role of autoantibodies in in vitro fertilization (IVF) has been discussed for almost three decades. Nonetheless, studies are still scarce and widely controversial. The aim of this study is to provide a comprehensive systematic review on…

PurposeThe aim of this prospective randomized control trial was to evaluate if the use of two different volumes (20-25 vs 40-45 μl) of media used for embryo transfer affects the clinical outcomes in fresh in vitro fertilization (IVF) cycles…

Among uterine structural abnormalities, myomas and adenomyosis represent two distinct, though frequently coexistent entities, with a remarkable prevalence in women of reproductive age. Various mechanisms have been proposed to explain the im…

Endometriosis represents a main cause of infertility and pelvic pain affecting 3-43% among reproductive age women. Deep pelvic endometriosis is defined as subperitoneal infiltration of endometrial implants in the uterosacral ligaments, rect…

PurposeRecurrence of endometriosis after conservative surgery has been observed in 40-50 % of patients within the first 5 years. A variety of regimens such as combined oral contraceptives, GnRH agonists, danazol, and progestins have been us…

Endometriosis is one of the most commonly encountered benign problems in gynecology. Even though endometriosis appears to predispose to ovarian cancer the progression from atypical epithelial proliferation (atypical endometriosis and metapl…

ObjectiveTo evaluate the efficacy of continuous oral contraceptive (OC) use versus the usual cyclic fashion in the recurrence of endometriosis-related symptoms after surgery.DesignProspective cohort trial involving patients in two tertiary …