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- Breath-holding spells are the general term for emotionally provoked attacks that occur in young children. These attacks can progress from a strong emotion to “breath holding” to decreased sensorium and either limpness or stiffness, which can appear as seizure-like activity.
- Disease essentials
- Provoked by anger, pain, or frustration
- Association with altered respiratory effort
- Results in decreased muscle tone
- Can be classified as simple (brief, no loss of consciousness) or severe (prolonged, associated loss of consciousness)
- Cyanotic (80%)
- Classic breath-holding spells
- Typically associated with anger
- Progress from crying to exhalation to apnea and syncope to decreased muscle tone and falling
- May also note generalized clonic jerks, opisthotonos, and bradycardia
- Ages: 6 months to a peak at 2 years, with resolution by 5 years
- Pallid (20%)
- Typically associated with pain, frustration, or surprise
- Progress from quieting to apnea (at the end of expiration) to syncope to decreased muscle tone and falling
- May also note clenched hands and clonic jerks and bradycardia
- Cyanotic (80%)
- Incidence: not reported
- Prevalence: 4.6% (severe), up to 27% (simple)
- No gender difference
- 20–35% have a positive family history
- Median age of onset 6–12 months of age
- Typically ages 1–5 years but can occur up to 7 years of age
- Usually resolve by school age
- Can occur several times per day to only once a year
- Age of peak frequency of spells is from 1–2 years of age.
- Underlying autonomic regulatory dysfunction
- 20–35% of patients with breath-holding spells have a positive family history.
- 11% of patients with epilepsy or other chronic but nonneurologic disorder have a positive family history of breath-holding spells.
- For 80% of patients with severe spells and a positive family history, the affected family members are mainly on the maternal side.
- An autosomal dominant trait with reduced penetrance has been noted in some.
- There are no known methods, medications, or treatments for preventing breath-holding spells.
- Although the term breath-holding spells implies volition, these attacks are involuntary and reflexive.
- For a variety of reasons, emotional outbursts are common in this age group; however, appeasing a child to prevent a spell is not recommended as it may lead the child to develop other, similar-appearing behaviors encouraging parental concession.
- Cyanotic breath-holding spells
- Syncope due to a Valsalva maneuver increasing the intrathoracic pressure, decreasing cardiac blood return and eventually cardiac output, which causes cerebral hypoperfusion and unconsciousness
- Pallid breath-holding spells
- Abnormal vagal response to emotional stimulation causing bradycardia and/or asystole, leading to decreased cardiac output and cerebral ischemia and unconsciousness
Always provoked by anger, pain, or frustration
Commonly Associated Conditions
- No definitive associated conditions
- There have been reports of some children with breath-holding spells going on to have syncope and/or seizures.
- Some studies have noted an increased prevalence of anemia in children with breath-holding spells; the anemia and spells improved over time with iron treatment. Although these findings also coincide with the expected timing for resolution of breath-holding spells, anemia might complicate an individual child’s picture.