Publications by authors named "Oriol Coll"

Study Question: Are the reproductive outcomes of HIV-infected donor oocyte recipient women comparable to those of non-infected women?

Summary Answer: HIV-infected women have lower clinical pregnancy and live birth rates than non-infected women.

What Is Already Known: The literature on the effect of HIV infection on reproductive outcome is scarce at best; the only report to date comparing oocyte donation cycles in HIV-infected women versus non-infected controls found no differences in pregnancy rates between the two groups. However, this study was performed nearly a decade ago and did not evaluate the effect of immuno-virological characteristics of oocyte recipients or the HIV antiretroviral therapy effect.

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Objective: To study whether knowledge of cervical length (CL) is useful in reducing the length of hospital stay in women admitted because of threatened preterm labor.

Methods: We performed a single-center, parallel, randomized trial at the Hospital Clínic of Barcelona. Inclusion criteria were single pregnancy, gestational age (GA) between 24+0 and 35+6 weeks, Bishop score <6, no parturition within 24-48 h after admission, and no clinical signs of chorioamnionitis, vaginal bleeding, or nonreassuring fetal status.

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Objective: To determine whether mitochondrial, oxidative, and apoptotic abnormalities in placenta derived from HIV and combined antiretroviral therapy (cART) containing zidovudine (AZT) could be associated with adverse perinatal outcome.

Design: Cross-sectional, controlled, observational study.

Methods: We studied obstetric results and mitochondrial, oxidative, and apoptotic state in placenta of 24 treated HIV-infected and 32 -uninfected pregnant women.

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The immigration of Latin American women of childbearing age has spread the congenital transmission of Chagas disease to areas of nonendemicity, and the disease is now a worldwide problem. Some European health authorities have implemented screening programs to prevent vertical transmission, but the lack of a uniform protocol calls for the urgent establishment of a new strategy common to all laboratories. Our aims were to (i) analyze the trend of passive IgG antibodies in the newborn by means of five serological tests for the diagnosis and follow-up of congenital infection, (ii) assess the utility of these techniques for diagnosing a congenital transmission, and (iii) propose a strategy for a prompt, efficient, and cost-effective diagnosis of infection.

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To assess the impact of HIV-infection and highly active anti-retroviral treatment in mitochondria and apoptotic activation of caspases during pregnancy and their association with adverse perinatal outcome. Changes of mitochondrial parameters and apoptotic caspase activation in maternal peripheral blood mononuclear cells were compared at first trimester of pregnancy and delivery in 27 HIV-infected and -treated pregnant women versus 24 uninfected pregnant controls. We correlated immunovirological, therapeutic and perinatal outcome with experimental findings: mitochondrial DNA (mtDNA) content, mitochondrial protein synthesis, mitochondrial function and apoptotic caspase activation.

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Background: This study was performed to assess the role of lipopolysaccharide modulators as a marker of microbial translocation among human immunodeficiency virus (HIV)-infected women during pregnancy and to evaluate their association with preterm delivery.

Methods: The study had a prospective cohort design and was performed at the Hospital Clínic in Barcelona, Spain. Thirty-six pregnant women with and 36 without HIV infection, matched on the basis of age and parity, were included.

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Study Question: Is the drug used for final oocyte maturation a factor in determining the prevalence of empty follicle syndrome (EFS)?

Summary Answer: The drug used for final oocyte maturation is not a factor in determining the prevalence of EFS among women unaffected by infertility.

What Is Known Already: Despite satisfactory follicular stimulation and adequate follicular development, cases of EFS, i.e.

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Objective: The menstrual cycle is a finely tuned biological process comprising a precisely orchestrated sequence of events: follicular growth, selection and ovulation, extensive endometrial changes, corpus luteum (CL) growth and maturation, and luteolysis. Differences in the length of the menstrual cycle (MCL) have been associated with variable female fecundity. However, the reason for these differences is so far unknown.

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Objectives: Three-dimensional (3D) sonographically based automated volume calculation (SonoAVC; GE Healthcare, Zipf, Austria) is being introduced in folliculometry during ovarian stimulation; however, clear training assessments in this technique are lacking. The learning curve-cumulative summation (LC-CUSUM) test provides a quantitative tool to determine when a trainee has learned a procedure. The aim of this prospective study was to assess 3D SonoAVC LC-CUSUM curves in folliculometry.

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Objective: To evaluate the effect of physician training in empathic skills on patients' satisfaction just after their first consultation in a private fertility clinic setting.

Design: Prospective study.

Setting: Private fertility clinic.

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Objective: Highly active antiretroviral therapy (HAART) has decreased the risk of HIV mother-to-child transmission. However, HIV and HAART have been associated with adverse perinatal outcome. HAART has been associated with mitochondrial dysfunction in nonpregnant adults, and HIV, additionally, to apoptosis.

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Antiretroviral therapy during pregnancy is critical to preventing human immunodeficiency virus vertical transmission. Physiological changes during pregnancy can alter drug kinetics. The aim of this study was to assess the pharmacokinetics (PK) of saquinavir (SQV) boosted with ritonavir during pregnancy and postpartum.

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Objectives: To assess the association between HIV infection and both spontaneous and iatrogenic preterm delivery (PTD), and to explore the impact of HAART on both entities.

Methods: A matched retrospective cohort study was carried out on 517 HIV-infected pregnant women who consecutively attended a university referral hospital between 1986 and 2010. Two controls were assigned for each case.

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Objective: To compare pregnancy and implantation rates with transvaginal (TV) versus transabdominal (TA) ultrasound-guided embryo transfer (ET).

Design: Randomized, clinical trial registered at clinicaltrials.gov (NCT 01137461).

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The risk of transmission of human immunodeficiency virus (HIV), hepatitis B (HBV) and hepatitis C virus (HCV) during invasive procedures may not be negligible, although it has been poorly assessed. The risk of hepatitis B transmission during amniocentesis seems to be low, but it may be increased in women with a positive HBeAg. HCV transmission risk cannot be established because evidence is lacking.

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Background: This study was conducted to explore the effect of gestational age (GA) on the induction-to-abortion interval of mifepristone-misoprostol midtrimester termination of pregnancy (TOP) regimen.

Study Design: This study involved a consecutive series of 270 pregnancies between 12.0 and 22.

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Background: Race and ethnicity are one of the newly investigated patient-related prognostic factors that might affect the outcome of assisted reproduction techniques. To our knowledge no data currently are available on the effect of race on oocyte donation outcome.

Materials: A retrospective, matched cohort study was performed in a private infertility centre evaluating 1012 Black, South-East Asian and Caucasian recipients undergoing their first oocyte donation cycles.

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In this prospective, follow-up study of 102 high-risk oocyte donors in their luteal phase, we found a complete absence of ovarian hyperstimulation syndrome (no signs of hemoconcentration or ascites) after the donors were triggered with a gonadotropin releasing-hormone (GnRH) agonist. Due to its powerful preventive effect, the GnRH antagonist protocol combined with a GnRH agonist trigger should preferentially be used in egg donors; in conjunction with an effective luteal support or embryo cryopreservation, the protocol could also be applied to high-risk in vitro fertilization patients.

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Aim: To construct a predictive model for respiratory distress syndrome (RDS) from gestational age (GA) at delivery and TDx-FLM II value.

Methods: Pregnant women who underwent an amniocentesis in which TDx-FLM II was determined were included in the study. A model for the occurrence of RDS was constructed by means of a logistic regression procedure from TDx-FLM II values and GA at delivery.

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Congenital cytomegalovirus (CMV) infection occurs in 0.6-0.7% of all newborns and is the most prevalent infection-related cause of congenital neurological handicap.

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We performed a prospective screening for Trypanosoma cruzi infection in 1350 Latin American pregnant women and their offspring in Barcelona, Spain. The rate of seroprevalence was 3.4%, and 7.

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Purpose Of Review: It is becoming increasingly important to address the issue of reproductive counselling and management of HIV-infected individuals during their reproductive years. Sexual and reproductive health-related needs and aspirations are similar to those of uninfected individuals but some differences require specific attention, which are discussed in this review.

Recent Findings: Hormonal contraception should be used with caution in women on antiretroviral treatment.

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Aim: To compare donor and recipient outcome after inducing the final oocyte maturation with hCG or GnRH agonist in GnRH-antagonist treated oocyte donation (OD) cycles.

Methods: Two-hundred fifty-seven oocyte donors were enrolled to participate in a clinical trial in a private fertility centre. After stimulation with 225 IU rFSH and Cetrorelix 0.

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Background: HIV-infected women under highly active antiretroviral therapy (HAART) undergoing in vitro fertilization (IVF) have a lower pregnancy rate than noninfected controls, which depends on oocyte-related factors. We hypothesized that mitochondrial toxicity caused by antiretrovirals could be the underlying mechanism of such disturbance.

Methods: We have studied 16 and 19 frozen-thawed oocytes obtained after oocyte retrieval IVF cycles from 8 and 14 infertile HIV-infected and uninfected women, respectively, matched by age.

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In this retrospective, matched study we evaluated the outcome of 31 oocyte donation (OD) cycles performed in 29 Turner syndrome (TS) patients involving the elective transfer of a single, fresh cleavage-stage (day 2 to 3) embryo. Due to the fact that ongoing pregnancy rate was statistically significantly lower (3.2% versus 22.

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