MRA & ABR as Early Predictors of Bilirubin-Induced Neurologic Dysfunction

Status Completed

Clinical Trial Summary

The aim of the research was to define the role of MRS and ABR as early predictors of bilirubin-induced neurologic dysfunction (BIND) in full-term neonates who required intervention (phototherapy or exchange transfusion).

Clinical Trial Description

Neonatal jaundice is a prevalent condition. It's typically a harmless phase that occurs as the body adjusts to bilirubin levels after birth, representing a balance between its production and elimination. When there's an increase in bilirubin production and a decrease in elimination, infants become at risk for dangerous hyperbilirubinemia, potentially leading to bilirubin encephalopathy. The range of neurological issues caused by excessive bilirubin is referred to as bilirubin-induced neurologic dysfunction. Detecting this condition early is crucial to prevent irreversible brain damage. Some of the neurological effects include gliosis, demyelination, and interference with glutamate uptake by astrocytes in the basal ganglia. Magnetic resonance spectroscopy (MRS) is an advanced imaging technique that holds promise for identifying these metabolic changes and aiding in the diagnosis and evaluation of neonates with hyperbilirubinemia. Bilirubin neurotoxicity particularly affects the auditory system, starting with the brainstem cochlear nuclei, followed by the auditory nerve. This damage can occur even without the classic signs of bilirubin encephalopathy and is known as auditory neuropathy spectrum disorder (ANSD). ANSD is characterized by abnormal auditory neural function, while cochlear microphonics and otoacoustic emissions remain normal. The impact on hearing can vary from subtle issues in sound processing to complete deafness. Abnormal results in auditory brainstem response (ABR) tests can indicate the presence of acute bilirubin encephalopathy (ABE), serving as the most common and earliest sign of ABE. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT06018012
Study type	Observational
Source	Tanta University
Contact
Status	Completed
Phase
Start date	March 1, 2019
Completion date	April 1, 2021

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

MRA and ABR as Early Predictors of Bilirubin-Induced Neurologic Dysfunction in Full-term Jaundiced Neonates

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms