Clinical Factors Predictive for Intracranial Hemorrhage in Mild Head Injury

Area of Science:

• Neurotrauma
• Emergency Medicine
• Radiology

Background:

• Mild head injuries (Glasgow Coma Scale [GCS] 13-15) carry a risk of intracranial hemorrhage (ICH).
• Clinical decisions for brain CT scans in these patients involve balancing ICH risks against costs, especially in equivocal cases.
• Identifying predictors for ICH in moderate-risk mild head injury patients is essential for efficient diagnostic strategies.

Purpose of the Study:

• To identify independent predictors of intracranial hemorrhage (ICH) in patients with mild head injuries.
• To define moderate risk for mild head injury, including GCS 13-15 with specific symptoms or alcohol intoxication.
• To establish clinical guidelines for managing moderate-risk mild head injury patients.

Main Methods:

• Study included 153 patients with mild head injury (GCS 13-15) meeting moderate-risk criteria.
• Moderate risk was defined as GCS 13-15 plus headache, vomiting, amnesia, or alcohol intoxication.
• Statistical analysis identified independent factors associated with intracranial hemorrhage.

Main Results:

• Intracranial hemorrhage (ICH) was present in 18 patients (11.76%).
• Four independent factors predicted ICH: history of hypertension, headache, loss of consciousness, and baseline GCS score.
• A GCS cutoff of 13 demonstrated 100% sensitivity for detecting intracranial hemorrhage.

Conclusions:

• History of hypertension, headache, loss of consciousness, and a baseline GCS score are significant predictors of ICH in moderate-risk mild head injury.
• A GCS score of 13 is a critical threshold, indicating high sensitivity for intracranial hemorrhage detection.
• These findings support targeted CT imaging in mild head injury patients, optimizing resource allocation and patient care.