View clinical trials related to Pregnancy Induced Hypertension.
Filter by:This is a randomised placebo controlled trial investigating the effects of dietary nitrate supplementation on hypertension in pregnancy
Historically and traditionally, the recommendations related to physical exercise during pregnancy have been based more on moral or cultural issues than on scientific evidence. During some phases of history, pregnancy has meant a period of seclusion for women (not only physical). One of the adverse consequences has been the common recommendation of rest as a general rule for pregnant women. Scientific evidence from recent years has achieved a better understanding of the process of pregnancy and childbirth as well as maternal and fetal responses to exercise. Currently, both from a scientific and clinical/obstetric point of view, there is no doubt about the benefits of an active pregnancy for entire body of pregnant woman, and even her child. In fact, risks of a sedentary lifestyle are applicable to the pregnancy situation, even more with important associated complications during pregnancy and postpartum period. Unfortunately, the impact of COVID-19 has caused an unprecedented global crisis, in this sense the necessary measures taken by the different administrations, especially in terms of confinement causes (from now on) a large number of complications affecting different populations. In summary a complex situation without established prevention strategies exists. The pregnant population is, due to the nature of the gestation and delivery process, one of the population groups with the highest risk of adverse outcomes and associated complications and whose consequences include the mother, fetus, newborn and even children. According to an important body of scientific literature and based on an epigenetic effect, the intrauterine environment can be a determining factor for the future human being to evolve regardless of complications and pathologies (cardiovascular, metabolic, psychic, emotional). This is demonstrated by numerous recent scientific evidences that confirm the unfortunate association between an adverse intrauterine environment (due to various factors) and observable postnatal pathologies in infants. In addition, current publications report the large number and variety of alterations that the COVID-19 situation causes in pregnant women and that includes the entire female organism. This complex situation does not only affect aspects of a physical or physiological nature, but also psychic and emotional factors. In summary, a new state of confinement or similar situations in the near future (impossibility of groupings, distance between people), avoid during the daily life of pregnant women one of the important and recent recommendations made by the international scientific community: a pregnancy physically active. This is especially relevant, due to the dangerous association between complications of a psychological or emotional nature during pregnancy with pre, peri and postnatal disorders (low birth weights, perinatal complications, altered and prolonged deliveries, etc.), which affect not only to the mother and can determine the health of the future human being. According to the scientific literature and based on an epigenetic effect, the intrauterine environment can be a determining aspect in the health of the future human being and the prevention of complications and pathologies (cardiovascular, metabolic, psychic, emotional). This is demonstrated by numerous and recent scientific evidences that confirm the unfortunate association between an adverse intrauterine environment (due to various factors) and different pathologies during and after pregnancy. It is evident the change that COVID-19 and its effects will generate in the lifestyle of the pregnant population and the increased probability of suffering associated pathologies in the next 24-36 months. No preventive actions have yet been planned in Spain and its public hospitals against the impact of COVID-19 on the quality of life of pregnant women. It is urgent to design and perform an adequate strategy of intervention for its possible prevention. From the scientific point of view, the recommendations are clear and concrete, an aerobic exercise program, designed and supervised by professionals from the Sciences of Physical Activity and Sports, is the best option for pregnant women. In this sense, in the last 30 years, physical exercise has proven to have many benefits for pregnant women, without causing risks or adverse effects on maternal-fetal well-being. This is confirmed by an important body of scientific literature on gestational physical exercise and its effects on pregnancy outcomes.
Preeclampsia is a multi-system vascular disease which affects 2-5% of pregnancies. It is also a risk factor for the development of cardiovascular disease later in life and a number of functional and structural cardiac changes have been found in this population of patients. In mouse models disruption of a group of immune cells, neutrophils, has led to alteration of the placenta and offspring consistent with those seen in preeclampsia. These mice also have an abnormal cardiac function and structure (Nadkarni et al 2016). The investigators hypothesis that this may also occur in humans. This study aims to intimately link the maternal immunological and vascular components of cardiac dysfunction in women preeclampsia. The investigators hypothesise that in preeclampsia activated neutrophils may affect maternal immune system thus leading to myocardial injury and altered cardiac function. The study intends to identify the mechanisms by which the maternal immune system (focusing on neutrophil and T-cell subsets) affects cardiac function in women with preeclampsia. Specific aims to be addressed are: Aim 1: To correlate specific neutrophil phenotype(s) and function to cardiac function in women with preeclampsia during pregnancy Aim 2: To test whether specific activated neutrophil phenotype persists postpartum and whether this neutrophil phenotype correlates with cardiac function in women with preeclampsia postpartum The study population will comprise of 3 groups: 1. Normotensive pregnant (~33 patients) 2. Pregnancy-induced hypertension (PIH; New-onset hypertension after 20 weeks without proteinuria; ~33 patients) 3. Preeclampsia (~34 patients) Cardiac function will be evaluated using cardiovascular magnetic resonance, echocardiography and cardiac markers in the blood. The participants immune system will be assessed from blood samples looking at the immune cells, hormone levels and inflammatory and non-inflammatory mediators. The secondary research objective is to investigate whether changes in the immune system and cardiac function in participants is persistent after delivery. Therefore participants will have scans and blood tests both antenatally and at 3 months postnatally. By identifying key changes in immune cell type and function with cardiac abnormalities in women with preeclampsia, data obtained from this study could provide novel insight into how the maternal immune system influences cardiac changes in normal and preeclamptic pregnancies. Identifying such links could pave the way for future therapeutic targets.
Hypertensive diseases of pregnancy are one of the most frequently encountered reasons for maternal and neonatal morbidity and mortality. The excretion of high levels of mucoprotein takes part in the pathogenesis of preeclampsia through restraining trophoblast invasion. This study aimed to investigate levels of serum mucoprotein three in hypertensive diseases of pregnancy. This study included a total of eighty cases that 20 normal pregnancy, 20 gestational hypertension, 20 preeclampsia, and 20 HELLP syndrome patients from June 2010- January 2011.
The complications of long-standing severe and acute severe elevations in systemic blood pressure (hypertension) may involve large vessels as well as smaller vessels, these latter comprising what is known as the microcirculation. Diseases of the microcirculation include stroke, dementia, and end stage renal disease to name a few. The microcirculation of the brain (and kidneys) possess a reflex called autoregulation that protects the downstream organ from fluctuations in blood pressure and blood flow. The neurosensory retina of the eye is a forward extension of brain and has a similar microcirculation to that of brain, including the presence of blood retinal barriers and the ability to autoregulate. One of the consequences of very severe hypertension is breakthrough of the autoregulatory reflex with hyperperfusion injury and edema formation. Currently, physicians and scientists have no tools to visualize or measure the human microcirculation or the autoregulatory reflex. SD-OCT is an advanced imaging technology that has a spatial resolution 1000-10,000 times greater than CT or MRI. It is the standard of care for identification and follow-up of structural diseases of the eye. The question this research proposal attempts to answer is whether SD-OCT is able to detect edema or other evidence of structural damage in the eyes in patients in the midst of, or following an episode of very severe hypertension. Pregnant women were chosen to be the focus of this study because: 1) pregnant women are generally young and would be expected to possess a normal microcirculation, 2) the occurrence of new-onset hypertension in pregnancy is high, occurring in 5-10% of all pregnancies, 3) there are established prediction rules that allow one to select and compare women at high- or low-risk of developing hypertension in pregnancy, and finally 4) the spectrum of hypertensive injury in pregnancy ranges from minor elevations in systemic blood pressures to eclampsia, the most severe, life-threatening form of hypertensive injury possible. All this is occurs within a 9-month time window defining human pregnancy. Thus, the investigators are proposing to examine the eyes of women using SD-OCT at low- and high-risk of developing hypertension in pregnancy to determine if, when and how this injury is occurring and its relationship to blood pressures.
This study evaluates the effect of slow and deep breathing on lowering blood pressure in women with pregnancy-induced hypertension. Slow and deep breathing will be practised daily for 10 minutes from enrolment until the woman gives birth. This feasibility study aims to investigate the practicality of conducting a proposed future randomised controlled trial.
The aim of this study was to compare haemodynamic changes, total dose of ephedrin requirement, and level of sensory blockade between fractionated dose and single dose spinal anesthesia injection in obstetric patients with pregnancy-induced hypertension who underwent Caesarean section
Introduction Maternal and neonatal mortality continue to be to be prominent public health issues in sub Saharan Africa including Ghana, with slow progress made towards attainment of Millennium Development Goals (MDG) 4 & 5. Studies have identified poor quality of maternal and child healthcare as a major challenge to the prevention of neonatal and maternal deaths. Effective interventions are required to make significant inroads in these areas. Objective To evaluate the effect of a SMS text messaging intervention to support clinical decision making by frontline health care professionals on neonatal and maternal mortality. Methods We propose to conduct a randomized controlled trial in the Eastern region of Ghana, involving 8 intervention and 8 control districts. The intervention consists of text messaging of standard protocols for maternal and neonatal care to front line health care providers in the region. A total of 17,040 pregnant women who are receiving care (including antenatal, delivery and post-natal) at any of the hospitals in the selected districts in the region will be monitored through monthly aggregate data on outcome measures such as neonatal and maternal deaths from eclampsia, postpartum haemorrhage, puerperal sepsis, birth asphyxia, low birth weight and neonatal sepsis. Cord sepsis will also be included as neonatal sepsis for this study. Also, a quality of care assessment in four sampled districts to measure adherence to the safe motherhood protocol will be conducted. Stata software package.55 and MLwiN software version 2.2456 will be employed in data analysis. Descriptive analysis will be carried out to explore baseline characteristics of study groups while logistic regression will be applied to evaluate the effect of the intervention. A two-tailed statistical significant level of 0.05 will be used. Expected outcome We hypothesize that the intervention will improve both maternal and neonatal service delivery and health outcomes in the intervention areas.
The aim of this feasibility study is to test recruitment of participants into Phase 1 of the study and then the re-recruitment and retention of participants in Phase 2 of the study. The investigators will also be assessing the acceptability of recruitment strategy and data collection to participants. The effect of pre-pregnancy factors (biophysical, genetic, socioeconomic, behavioural and psychological) on obstetric, cardiovascular, socioeconomic, behavioural and psychological outcomes will all be examined.
The initial trial examined if fish oil supplementation during pregnancy could reduce the risk of pregnancy induced hypertension, intrauterine growth retardation, and preterm birth in pregnancies that were at increased risk of these complications. The study was designed as a multi-centre clinical trial based in 19 hospitals in seven countries in Europe.