Differential Diagnosis and Management of Head Jerking in Infants

Immediate Assessment and Diagnostic Approach

The American Academy of Pediatrics recommends looking for head nodding synchronized with breathing as a sign of respiratory distress, which is a medical emergency 1
The assessment of consciousness during events is crucial, as preserved consciousness suggests Benign Myoclonus of Early Infancy (BMEI), while altered consciousness is more indicative of infantile spasms 1
The Hammersmith Infant Neurological Examination (HINE) is a useful tool for assessing neurological function, with 90% sensitivity for cerebral palsy 2, 4
Brain MRI is essential for identifying the etiology of infantile spasms, with hypoxic-ischemic injury being the most common cause (46-65% of cases) 3

Video-EEG during episodes is necessary to capture ictal activity and confirm the diagnosis of infantile spasms 1
Ictal EEG must be normal to confirm the diagnosis of BMEI 1
The Prechtl Qualitative Assessment of General Movements has 98% sensitivity for cerebral palsy before 5 months of age 4, 5
A combination of abnormal general movements, abnormal HINE, and abnormal MRI is more accurate than any single test for diagnosing cerebral palsy 4, 5

The American Academy of Pediatrics recommends immediate referral to pediatric neurology if infantile spasms are confirmed, with treatment within the first month of onset improving prognosis 6, 3
Cardiology consultation is required if steroids are used to treat infantile spasms, due to the risk of cardiomyopathy 6, 3
Regular developmental monitoring is necessary for infants with BMEI to ensure normal progression 1
Early intervention services, including physical therapy, occupational therapy, and speech therapy, are essential for infants with cerebral palsy or at risk of cerebral palsy 6, 2, 5