View clinical trials related to Cerebral Circulatory Failure.
Filter by:The aim of the study is to develop an accessible, reproducible ultrasound tool for objective clinical measurement of brain circulation in preterm infants in order to identify infants being at risk for preterm brain injury at an early stage. In the future, the results of this study might be useful to select those infants for early interventions aimed at preventing brain injury. In this study we will identify the normative values of the internal cerebral vein velocity in a reference cohort of stable preterm infants. This stable group of preterm infants is defined as all preterm infants with a birth weight appropriate for gestational age, and without major complications (such as a severe intracranial hemorrhage, severe hemodynamical instability, birth asphyxia) or major congenital malformations. In this group we will identify subgroups based on moments of clinical instability (sepsis, temporary hypotension, NEC, need for invasive respiratory support) or based on outcome parameters (IVH, PVL, developmental outcomes)
Several recent studies point to the possibility of the new coronavirus (SARS-Cov2), which currently causes pandemic COVID-19, to infiltrate the central nervous system (CNS) and cause primary damage to neural tissues, increasing the morbidity and mortality of these patients. A pathophysiological hypothesis for insulting the CNS would be the impairment of cerebral compliance (CC), because elevation of intracranial pressure (ICP), but due to the invasive nature of the methods available for ICP evaluation, this hypothesis has so far not been verified. Recently, a noninvasive technique was developed to evaluate CC (B4C sensor), making it possible to analyse CC in patients outside the neurosurgical environment. Therefore, the main objective of this study was to assess the presence of CC impairment in patients with COVID-19, and observe potential influences of this syndrome on cerebral hemodynamics.