Matorras R

Introduction Scientific evidence has shown that regular physical activity (PA) is beneficial to health. However, no consensus has been reached on the association between PA and the success rates of assisted reproduction treatments. The purp…

BackgroundThe purpose of the study was to assess whether the coadministration of 150 IU of recombinant LH instead of 75 IU in women aged 35-39 improves the results in agonist ICSI cycles stimulated with 300 IU of recombinant FSH.MethodsIn t…

Considerable costs are associated with infertility treatment, but little evidence is available on the main drivers of treatment costs. This cost analysis investigated key costs for treatment with assisted reproductive technology (ART) and t…

PurposeTo assess the outcome of excess follicle aspiration before intrauterine insemination (EFABI) in intrauterine insemination (IUI) cycles with 4-6 follicles ≥14 mm.MethodsA retrospective case-control study with 1559 patients undergoing …

Is there a relationship between endometriosis and placenta previa (PP)? To investigate if there is a relationship between endometriosis and PP, a retrospective study was carried out, using prospectively recorded data from two different data…

This study compared the cost per live birth and cost-effectiveness of the originator recombinant human follicle-stimulating hormone follitropin alfa (r-hFSH-alfa) and r-hFSH-alfa biosimilars for ovarian stimulation prior to assisted reprodu…

PurposeTo ascertain whether physical activity (PA) is associated with better sperm quality in sperm donors.MethodsA prospective case-control study was designed in an IVF center setting. A total of 207 sperm donation candidates from a relati…

ObjectiveTo evaluate the influence on sperm parameters and in vitro fertilization (IVF) outcomes of the administration of 400 mg/day of vitamin E for 3 months to men from infertile couples who are undergoing IVF.DesignDouble-blind, placebo-…

ObjectiveTo characterize the most relevant changes in the lipidome of endometrial fluid aspirate (EFA) in non-implantative cycles.DesignLipidomics in a prospective cohort study.SettingsReproductive unit of a university hospital.PatientsTwen…

Study questionWhat is good practice in ultrasound (US), and more specifically during the different stages of transvaginal oocyte retrieval, based on evidence in the literature and expert opinion on US practice in ART?Summary answerThis docu…

ObjectiveTo study the dynamics of the expression and localization of the mu opioid receptor (MOR) in human endometrium throughout the menstrual cycle.DesignAnalysis of human endometrial samples from different menstrual cycle phases (menstru…

In this retrospective study, the efficiency of carrying out rescue intrauterine insemination (IUI) in low-responder patients undergoing IVF when no oocytes were retrieved after follicular aspiration and when HCG timing was adequate was anal…

Study questionWhy are female mice that lack a functional p27 protein infertile?Summary answerThe absence of a functional p27 leads to a dramatic increase in the number of multi-oocyte follicles (MOFs) in juvenile female mice; p27 would prom…

OBJECTIVE: To assess the value of the levonorgestrel-releasing intrauterine device (LNG-IUD) in the treatment of pelvic pain in patients with endometriosis in which previous medical and surgical treatments have failed. STUDY DESIGN: This pr…

PurposeThe aim of our study was to ascertain the influence of hCG levels at oocyte pick-up on IVF outcomes, and their relationship with clinical parameters.MethodsA prospective study was performed including 473 women undergoing IVF, aged un…

ObjectiveThe purpose of this study was to compare the pregnancy rate in an artificial insemination donor program in women with minimal endometriosis and in women without endometriosis.Study designA prospective double-blinded study was condu…

The endometrial fluid is a noninvasive sample which contains numerous secreted proteins representative of endometrial function and reflects the state of the endometrium. In this study, we describe, for the first time, a comprehensive catalo…

BACKGROUND: The development of non-invasive diagnostic methods for endometriosis requires sensitive and disease specific biomarkers. Here, we describe the use of aspirated endometrial fluid from women with and without endometriosis as a nov…

Endometriosis is associated with a number of immunologic alterations. It has been suggested that autoimmune disorders could be more frequent in patients with endometriosis. The aim of this study is to ascertain whether the prevalence of two…

ObjectiveTo estimate the risk of recurrence after administration of hormone replacement therapy (HRT) among women who have had endometriosis and who underwent bilateral salpingo-oophorectomy (BSO).DesignProspective randomized trial (115 wom…

ObjectiveTo compare the prevalence of endometriosis and its different stages in infertile women and women not exposed to spermatozoa.DesignProspective study.SettingArtificial insemination donor program at a university hospital.Patient(s)One…

ObjectiveTo ascertain if there is an association between endometriosis and spontaneous abortion.DesignProspective cohort study.SettingMedical School Hospital.Population174 infertile women laparoscopically diagnosed with endometriosis and 17…

ObjectiveOur purpose was to assess the physical signs and clinical symptoms associated with endometriosis in infertile women.Study designThis case-control study was carried out in an academic tertiary hospital. There were 174 infertile wome…

OBJECTIVE: To assess the relationship in infertile women between endometriosis and luteal phase defects and other infertility conditions. SETTING: University Medical School. DESIGN: Case-control study. PATIENTS: One hundred and seventy-f…

OBJECTIVE: To assess the epidemiological factors linked to endometriosis in infertile women. SETTING: Academic tertiary hospital. DESIGN: Case-control study. PATIENTS: One hundred seventy-four infertile women with endometriosis and 174 i…