In neonatal seizures, which presentation is most commonly observed?

• A. Subtle signs
• B. Generalized convulsions with tonic-clonic movements
• C. Cyanosis only
• D. Swallowing difficulties

Answer: (A)

In neonates, seizures rarely look like the classic convulsions you might expect. The immature brain often expresses ictal activity through small, nonpurposeful movements or autonomic changes rather than generalized tonic-clonic jerks. This means the most common picture is subtle signs rather than obvious seizures.

Subtle signs include eye deviations or rapid eye movements, lip smacking or other oral-buccal movements, chewing motions, facial grimacing, or minor limb jerks that aren’t the full-body convulsions seen in older patients. Neonatal seizures can also present with changes in breathing or color—such as apnea or desaturation, tachycardia, or subtle shifts in tone—without dramatic motor activity. Because these signs can be easy to miss, a high index of suspicion is important in at-risk infants.

Generalized convulsions with tonic-clonic movements do occur, but they are less common in this age group. Cyanosis or swallowing difficulties might accompany a seizure, but they are not the primary presentation you should expect, and they don’t define the seizure pattern in most neonates.

Understanding that subtle, nonconvulsive signs are the typical presentation helps guide timely monitoring and diagnostic steps, like EEG, when a high-risk neonate shows any of these subtle changes.