Respiratory Rate & Seizures: Understanding the Connection

Seizures involve abnormal cortical electrical activity that can spread to the brainstem respiratory centers, altering breathing pattern:

Potential Respiratory Changes

• Hypoventilation / Apnea: Central depression → hypoxia.
• Laryngospasm: Vocal cord closure → airway obstruction.
• Increased O₂ demand: Neuronal hyperactivity raises metabolic rate.
• Hyperventilation: Post-ictal or ictal → hypocapnia, respiratory alkalosis, lightheadedness, tetany.

Dangers

• Hypoxia → neuronal injury, cardiac arrhythmia.
• Aspiration risk if vomiting occurs.

First Aid

• Stay calm; time the seizure.
• Position on side (recovery position) to protect airway.
• Do not insert anything in mouth.
• Call emergency services if seizure >5 min, recurrent, or breathing compromised.