Alpha coma pattern in a child

J A Bragatti1, A M Mattos, H Bastes

  • 1EEG Unit, Division of Neurology, Porto Alegre Clinical Hospital, Porto Alegre, Brazil. jbragatti@hcpa.ufrgs.br

Insights

Alpha coma, an EEG pattern, can occur in children with neuroblastoma due to septic encephalopathy. This pattern resolved with successful sepsis treatment, indicating a variable prognosis.

Area of Science:

  • Neurophysiology
  • Pediatric Neurology
  • Critical Care Medicine

Background:

  • Alpha coma, characterized by widespread alpha frequency EEG activity, is associated with severe neurological conditions.
  • Common causes include hypoxic-ischemic encephalopathy, encephalitis, trauma, metabolic disorders, and drug overdose.
  • While reported in children, its clinical significance is etiology-dependent.

Observation:

  • This case report details alpha coma in a child with neuroblastoma.
  • The electroencephalogram (EEG) pattern emerged during treatment due to complicating septic encephalopathy.
  • The alpha coma pattern was transient, observed during the sepsis complication.

Findings:

  • The alpha coma pattern resolved and was replaced by a normal EEG trace.
  • Resolution of the alpha coma pattern correlated with successful sepsis treatment.
  • This suggests a potentially reversible cause of alpha coma in this pediatric case.

Implications:

  • The findings highlight the importance of considering treatable conditions like sepsis in pediatric alpha coma.
  • This case underscores the variable prognosis of alpha coma, emphasizing the role of underlying etiology.
  • It suggests that prompt management of underlying causes can lead to favorable neurological outcomes in children with alpha coma.

Related Concept Videos

Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
Acute Respiratory Failure-III01:30

Acute Respiratory Failure-III

Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without causing...
Alterations in Respiration II01:30

Alterations in Respiration II

There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes include...
Cardiopulmonary Resuscitation I: Adult01:21

Cardiopulmonary Resuscitation I: Adult

Cardiopulmonary resuscitation, or CPR, is a life-saving emergency procedure performed when a person's heart has stopped beating or they are no longer breathing. The foundation of CPR is Basic Life Support (BLS), which focuses on the early recognition of cardiac arrest, the immediate start of high-quality chest compressions, and the timely use of an automated external defibrillator (AED).Assessing Responsiveness and Checking the Carotid PulseWhen approaching an unresponsive person, first ensure...