Epidural hematomas (EDHs) and subdural hematomas (SDHs), or so-called extra-axial bleedings, are common clinical entities after a traumatic brain injury (TBI).
Background Epidural hemorrhage (EDH), subdural hemorrhage (SDH), and subarachnoid hemorrhage (SAH) are intracranial bleeds at varying anatomic locations
The main differences between epidural hematoma (EDH) and subdural hematoma (SDH) include: Location: EDH is between the skull and dura; SDH is between the dura and arachnoid.
Subdural hematoma (SDH) and epidural hematoma (EDH) are characterized by bleeding into the spaces surrounding the brain or spinal cord. SDHs form between the dura and the arachnoid membranes.
On non-contrast CT, SDH exhibits a hyperdense crescent shape spreading along the skull's curvature. Unlike EDH, SDH is not constrained by suture lines. A chronic SDH might become hypodense (dark) due to the degradation of blood and proteins, resulting in a less dense fluid.
Worse prognosis than EDH Chronic SDH: Burr-hole drainage Excellent outcomes Prognosis Worse than EDH Depends on: Age Initial GCS Associated brain injury EDH vs SDH (COMPARISON) ... EXAM PEARLS Lucid interval = EDH Crescent shape crossing sutures = SDH Rapid deterioration + fixed pupil = EDH Elderly on anticoagulants = SDH EDH is a neurosurgical ...
This document discusses the difference between primary and secondary head injuries and the management of extradural hematomas (EDH) and subdural hematomas (SDH).
Acute SDH: These show up quickly after an injury. Symptoms can be mild like headaches or severe, causing confusion, feeling very tired, and even not being awake.
Features of an EDH on a CT scan may include: A subdural haematoma is defined as a haemorrhage between the dura mater and arachnoid mater of the brain.