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Clinical Trial Summary

In TBI, there is a strong correlation between increased ICP and bad outcome. So, appropriate monitoring can be the gold standard in management of TBI. ICP can be measured by invasive and noninvasive methds. One of these noninvasive methods is bedside measurement of optic nerve sheath diameter (ONSD) by ocular ultrasonography


Clinical Trial Description

In the previous few years, agreat evidence has established for efficiency of dexmedetomidine (DEX) in management of TBI. Dexmedetomidine is a highly selective alpha-2 receptor agonist, its major sympatholytic and sedative actions are mediated primarily via reduced transmission in the locus coeruleus which is a part of the reticular activating system. It provides excellent sedation without respiratory depression, ease of arousability, and need not be stopped during weaning the patient from mechanical ventilation or for neurological assessment. It suits as an ideal sedative agent for patients with TBI. DEX has been shown to reduce cerebral ischemia/ reperfusion injury by suppressing inflammation, activating the anti-apoptotic signaling pathways, and inhibiting neuronal autophagy. Animal studies have shown that alpha-2 agonists are neuroprotective in craniocerebral and subarachnoid injuries but this has not been definitively shown in humans . The efficacy of DEX for sedation in intubated ICU patients is well established; however, its use in patients with TBI has not been comprehensively described . Magnesium has shown great promise as a potential therapeutic agent in TBI during animal experiments . Magnesium is essential for the maintenance of cell membrane integrity, the stabilisation of genetic material and for a number of fundamental enzymatic reactions such as glycolysis, oxidative phosphorylation and protein synthesis, it is also known to act presynaptically to inhibit the release of excitatory amino acids, and be a non-competitive inhibitor of the voltage-gated N-methyl-D-aspartate (NMDA) receptor, an important link in the excitotoxic phase of secondary brain injury. As a consequence, magnesium's role in TBI has been of great interest to researchers. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05340803
Study type Interventional
Source Assiut University
Contact Alshymaa Hassan Mohammed, Master
Phone 01067555351
Email Alshimaa.hassan@medicine.luxor.edu.eg
Status Not yet recruiting
Phase Phase 3
Start date November 1, 2022
Completion date December 1, 2025

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