The shaken baby syndrome: diagnosis using CT and MRI

Area of Science:

• Pediatrics
• Neurology
• Forensic Medicine

Background:

• Head injuries are the primary cause of mortality in infants under one year old.
• Child abuse, specifically violent shaking, is a common cause of severe head trauma in infants, known as shaken baby syndrome (SBS).
• SBS diagnosis is difficult as it frequently lacks external indicators of abuse, despite causing severe injuries like retinal hemorrhage and subdural hematoma.

Purpose of the Study:

• To review common cranial injuries linked to SBS.
• To describe the injury mechanisms, clinical signs, and symptoms of SBS.
• To explore the utility of CT and MRI in diagnosing SBS-related head trauma.

Main Methods:

• Literature review of common SBS-related cranial injuries.
• Analysis of injury mechanisms and clinical presentations.
• Investigation of diagnostic imaging modalities (CT and MRI).

Main Results:

• Common cranial injuries in SBS include subdural hematomas, subarachnoid hemorrhages, and retinal hemorrhages.
• The biomechanics of violent shaking lead to rotational and acceleration/deceleration forces causing diffuse axonal injury and vascular damage.
• Clinical signs may include irritability, lethargy, vomiting, and seizures, but can be subtle.

Conclusions:

• SBS is a critical pediatric concern requiring heightened awareness.
• Accurate diagnosis relies on recognizing specific injury patterns and utilizing advanced neuroimaging.
• Early detection and intervention are crucial for improving infant outcomes in suspected SBS cases.