Frequent question: How common is infant shudder syndrome?

Shuddering attacks (SA) are an uncommon benign disorder of infants and young children, with movements resembling shivering and straining, without impaired consciousness or epileptiform EEG, and showing resolution or improvement by 2 or 3 years of age.

Does infant shudder syndrome go away?

Shuddering attacks are recognized as an uncommon benign disorder occurring during infancy or early childhood. It consists of rapid shivering of the head, shoulder, and occasionally the trunk. These types of shudders usually stop within a few years.

Why does my baby shudder so much?

In newborns, the pathways that carry the signals from the brain to the parts of the body aren’t yet fully developed, causing jerky and twitchy movements. As the baby’s nervous system matures, these movements will become more fluid.

What triggers shudder syndrome?

These attacks usually start between the first 4th and 6th months of life with rapid tremors of the head and adduction of the arms and knees. A number of factors including eating, breastfeeding, and playing stimulating games have been shown to trigger the attacks; however, the exact pathogenesis remains unknown.

When do shudder attacks go away?

Parental education and reassurance are all that is needed for this benign condition. In 12 children with onset of shuddering attacks between 8 months and 2 years of age, all had complete remission by the age of 3 to 7 years.

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What are shudder attacks?

Shuddering attacks are benign nonepileptic events that typically begin in infancy. The clinical events consist of rapid shivering of the head, shoulder, and occasionally the trunk. As in our patient, events have been reported as brief, usually lasting not more than a few seconds.

Why does my baby shiver when not cold?

Shivering: Our bodies have a built-in mechanism for warming itself up—shivering. However, babies do not have the ability to shiver. This symptom in a baby or child who is not cold can be due to low blood sugar and is resolved after eating.

How do I know if my baby has infantile spasms?

Symptoms of Infantile Spasms (IS)

  1. Raise their arms over their head or stick their arms straight out to the side.
  2. Stiffen their legs or “tuck them into the belly,” as if having stomach pain.
  3. Suddenly bend at the waist.
  4. Drop or bob their heads briefly.
  5. Roll their eyes back suddenly with subtle head nodding.

How long do infantile spasms last?

Often occur in a series, called a cluster. Clusters help make the diagnosis. Spasms within a cluster often have a regular pattern. The time between each spasm can last from 3 to 30 seconds.

When do shudder attacks happen?

Unlike epileptic seizures, shuddering attacks do not occur during sleep. Breath-holding spells (cyanotic infantile syncope): These spells affect children aged 6 months to 5 years. Typically, a clear trigger is present, with the child being upset and crying.

Did my baby have a seizure?

Focal seizures: Focal seizures may involve the infant having spasms or rigidity in one muscle group, becoming pale, sweating, vomiting, screaming, crying, gagging, smacking their lips, or becoming unconscious. For an example of how a focal seizure might look, click here.

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