View clinical trials related to Placenta Diseases.
Filter by:Ultrasonography will be used to determine the total blood flow to and from the uterus. This is done by measuring the blood vessels coming from and going to the uterus. This wil hopefully prove viable and open the possibility to further research in the clinical relevance of these measurements.
Individually, both opioid and cannabis exposure during pregnancy are associated with changes in fetal growth. The extent to which opioid and cannabis exposure affect fetal growth is unknown. The Investigators hypothesize that the combination of both substances will impact placental function and subsequent fetal growth more severely than either substance alone. The primary objective is to determine the extent to which fetal growth profiles in opioid-exposed pregnancies are influenced by cannabis exposure. This prospective cohort study will consist of opioid-exposed pregnancies and pregnancies without opioid exposure recruited from 5 obstetrical clinics from across Ontario. A total of 546 participants will be recruited.
COVID-19, the coronavirus responsible for the pandemic that began at the end of 2019 in China, spreads through respiratory droplets and direct contact. The most common symptoms of the disease include fever, cough, asthenia or myalgia, wheezing and headache, and the most serious complication is acute respiratory distress syndrome (ARDS). The new coronavirus has continued to spread to multiple countries and continents so much so that the epidemic was declared a Public Health Emergency of International Interest (PHEIC) by the World Health Organization (WHO) on January 30, 2020. In the first phase of emergency worldwide, characterized by high morbidity and mortality, scientific interest has been mainly directed to the study of the transmission mechanisms of the infection, diagnostic tools and therapies for ARDS, especially in elderly and co-morbid patients. Interest has rapidly spread to other categories of patients and in particular to pregnancy, on which the virus could impact in different ways, with consequences for both the mother and the fetus. A recent systematic review that included all published reports on Coronaviruses (COVID-19, SARS, and MERS) in pregnancy showed that preterm delivery is the most frequently reported adverse event in these women, and that COVID-19 is associated with an increased risk of preeclampsia and caesarean section. Nonetheless, the limited sample size, the main inclusion of cases reported for acute respiratory symptoms, the lack of information on previous pathologies potentially capable of complicating pregnancy, do not allow for the extrapolation of strong evidence on the course of infection in pregnancy. Therefore, the current status of the scientific literature does not allow for general and wide-ranging implications. THe investigators therefore believe it is particularly useful to investigate maternal and fetal outcomes in this new broader scenario, including all pregnancies associated with asymptomatic or symptomatic SARS-CoV-2 infection, found in any gestational period, in order to evaluate in a "real world scenario" "Actual rates of maternal-fetal and neonatal adverse events
Placenta grows with advancing gestational age amonitoring of placental growth is important in pregnancy evaluation