About this trial
Preeclampsia is a pregnancy-specific hypertensive disorder and can progress rapidly to severe adverse outcomes affecting both the mother and the fetus. Endothelial and microcirculatory dysfunction mediate systemic preeclampsia-related organ dysfunctions. Changes in endothelial and vascular function in preeclampsia have been demonstrated through reduced flow-mediated vasodilation as a result of reduced availability of nitric oxide, which potentially persists up to several years postpartum. Hyperspectral imaging is a new innovative technology that allows to assess the peripheral microcirculation and perfusion non-invasively and contactless, but has never been evaluated in the context of preeclampsia before.
This EPICS project (Endothelial dysfunction for Prognosis In patients with preeClampSia) is a prospective observational study and aims to investigate hyperspectral imaging as a new potential diagnostic and prognostic marker in preeclampsia.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
singleton pregnancies
Age ≥ 18 years
Patient's ability to provide consent
written informed consent
Disqualifiers
Lack of consent
Language barrier
Dark to very dark skin type
Severe fetal chromosomal/genetic/structural anomalies
Trial population
Patients who are admitted to the Department of obstetrics at Heidelberg University Hospital
Trial design
Cohort
Prospective
Treatments tested in this trial
Hyperspectral imaging
Diagnostic testHyperspectral imaging will be performed at study inclusion and will be repeated longitudinally every 1-2 days until delivery and on the first and second day after delivery. After a baseline measurement, a blood pressure cuff is inflated on the upper arm to 50 mmHg above the systolic blood pressure for 5 minutes, and then the hyperspectral imaging measurement is repeated. Blood samples are collected at study inclusion and on the first and second day after delivery and are processed within the Department of Gynecology and Obstetrics of the Heidelberg University Hospital.
Further markers of endothelial dysfunction
Diagnostic testAt study inclusion: 1. blood samples will be collected for the measurement of EASIX and cardiac/endothelial markers; 2. sublingual in vivo microscopy will be performed (requires about 20 minutes and can be compared to a sublingual temperature measurement); 3. Doppler ultrasound will be performed to evaluate uterine and ophthalmic arteries. Blood samples will also be collected at the first and second day after delivery.
Treatment groups
Trial outcomes
Primary outcomes
Time Until Delivery
Time period between date of study inclusion (diagnostic tests) to delivery
Secondary outcomes
maternal adverse event
composite adverse maternal outcome (categorical, yes/no): death, acute kidney injury, cardiorespiratory complication (e.g. pulmonary edema), eclampsia, cerebrovascular event, hematological complication, hepatic complication, postpartum hemorrhage, the Hemolysis, Elevated Liver enzymes, Low Platelets (HELLP) syndrome, placental abruption
perinatal adverse event
composite perinatal endpoint (categorical, yes/no): neonatal mortality, stillbirth, preeclampsia-related preterm delivery, respiratory distress syndrome, neonatal seizures, intraventricular hemorrhage, necrotizing enterocolitis, birthweight \<10th percentile, admission to neonatal unit, respiratory support
maternal cardiovascular outcome: persistence of hypertension
number of participants with persisting hypertension
maternal cardiovascular outcome: blood pressure
blood pressure (mmHg)
Sponsors and contacts
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