Placental levels of essential and non-essential trace element in relation to neonatal weight in Northwestern Spain: application of generalized additive models.

Adequate gestational progression depends to a great extent on placental development, which can modify maternal and neonatal outcomes. Any environmental toxicant, including metals, with the capacity to affect the placenta can alter the development of the pregnancy and its outcome. The objective of this study was to correlate the placenta levels of 14 essential and non-essential elements with neonatal weight.

Determination of organic pollutants in meconium and its relationship with fetal growth. Case control study in Northwestern Spain.

Objectives: Antenatal exposure to organic pollutants is a leading public health problem. Meconium is a unique matrix to perform prenatal studies because it enables us to retrospectively evaluate fetal exposure accumulated during the second and third trimester. The aim of the present study was to evaluate associations between organic pollutant levels in meconium and birth weight in NW Spain.

Association between placenta concentrations polybrominated and polychlorinated biphenyls and gestational diabetes mellitus: a case-control study in northwestern Spain.

Exposure to persistent organic pollutants begins in uterine life. The study was conducted to evaluate associations between gestational diabetes mellitus and the presence of persistent organic pollutants in placenta samples. They were derived from a birth cohort study in Ourense (NW Spain).

[Perinatal outcomes of twin pregnancies conceived through in vitro fertilization versus spontaneous].

Objective: Determine maternal and fetal characteristics of in vitro fertilization twin pregnancies in comparison with spontaneous twin pregnancies.

Material And Methods: Retrospective historical cohort study between 2011 and 2013. Statistical analysis was performed with SPSS 15.

[Risk factors of evolution of postpartum hemorrhage towards severe postpartum hemorrhage: A case-control study].

Objective: To describe the incidence and risk factors for evolution of postpartum haemorrhage towards severe.

Material And Methods: Epidemiologic, observational, analytical, case-control study was done from total data of deliveries in Complexo Hospitalario de Ourénse between January 1st 2004 and June 30th 2014. Mann-Whitney U test was used to determine the differences between cases and controls.