Mannitol Use in Bilateral Extradural Hematoma

Indications for Mannitol in Extradural Hematoma

The American College of Hepatology recommends mannitol administration when there are obvious neurological signs of increased ICP, such as decerebrate posturing 1
The Anaesthesia society indicates that pupillary abnormalities, such as anisocoria or mydriasis, are also indications for mannitol administration 2
Clinical deterioration not attributable to systemic causes is an indication for mannitol administration, according to the Hepatology society 1
Direct ICP monitoring showing elevated pressure (>20-25 mmHg) is also an indication for mannitol administration, as recommended by the Hepatology society 1

Mannitol creates an osmotic pressure gradient across the blood-brain barrier, causing water displacement from brain tissue to the intravascular space, as described by Praxis Medical Insights 3
The Anaesthesia society notes that the maximum effect of mannitol is observed after 10-15 minutes and lasts for 2-4 hours 2

The Hepatology society recommends a dosage of 0.5-1 g/kg IV administered as a bolus over 15-20 minutes 1
The dose may be repeated once or twice as needed, provided serum osmolality has not exceeded 320 mosm/L, as recommended by the Hepatology society 1

The Hepatology and Anaesthesia societies agree that prophylactic administration of mannitol is not indicated 1, 2
The Hepatology society recommends monitoring serum osmolality to ensure it remains below 320 mOsm/L 1
The Anaesthesia society notes that cerebral perfusion pressure (CPP) should be maintained above 50-60 mmHg while treating elevated ICP 2

The Anaesthesia society notes that hypertonic saline (3% or 23.4%) is an alternative to mannitol and may have a longer duration of action in some cases 2
The European Stroke Organisation guidelines note insufficient evidence from RCTs to make strong recommendations on measures to lower ICP for adults with acute intracerebral hemorrhage 4, 5