Management of Chronic Subdural Hematoma in Elderly Patients

Initial Assessment and Imaging

The American College of Emergency Physicians recommends obtaining immediate non-contrast head CT for any elderly patient on anticoagulation with head trauma, regardless of mechanism severity 2
Documenting Glasgow Coma Scale (GCS) score with individual components and pupillary examination is crucial for assessing the patient's condition 1
Verifying all anticoagulant and antiplatelet medications is essential, as these dramatically increase hemorrhage risk and expansion 2
Obtaining coagulation studies, including PT/INR, aPTT, and anti-Xa levels, is necessary for patients on direct oral anticoagulants (DOACs) 3

The American Academy of Neurology recommends that all patients with documented subdural hematoma require admission, regardless of GCS score, as delayed deterioration can occur even in neurologically stable patients 1
Monitoring GCS every 15 minutes for the first 2 hours, followed by hourly assessments for 12 hours, and serial neurological examinations for 24-72 hours is crucial for detecting any changes in the patient's condition 1
Maintaining mean arterial pressure ≥80 mmHg is essential to ensure adequate cerebral perfusion 1, 4

The American College of Chest Physicians recommends administering 4-factor prothrombin complex concentrate (4F-PCC) plus 5 mg intravenous vitamin K immediately for warfarin reversal 3, 5, 2
Targeting INR <1.5 before surgical intervention is necessary for patients on warfarin 3, 5
For direct oral anticoagulants (DOACs), administering idarucizumab 5 g IV for dabigatran or andexanet alfa for rivaroxaban or apixaban is recommended 3, 2

The American Association of Neurological Surgeons recommends immediate neurosurgical consultation for all documented subdural hematomas 1, 4
Surgical indications include subdural hematoma >10 mm thickness, midline shift >5 mm, GCS decline of ≥2 points, and development of pupillary changes or posturing indicating herniation 4, 1

The Society of Critical Care Medicine recommends delaying VTE prophylaxis for 24 hours in CNS injuries, then initiating when CT shows no progression 8, 9
Using low-molecular-weight heparin (LMWH) 30 mg every 12 hours or unfractionated heparin (UFH) 5000 U every 8 hours is recommended for VTE prophylaxis 8, 9

The American College of Emergency Physicians recommends never discharging patients with documented subdural hematomas based solely on normal neurological examination 1
Avoiding hypotension during evaluation and maintaining MAP ≥80 mmHg is crucial to ensure adequate cerebral perfusion 1, 4
Never assuming dizziness or minor symptoms are benign without neuroimaging is essential to avoid missing potential subdural hematomas 4