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Intermediate Technical IVT

desaturation episodes

Periods of decreased oxygen saturation in patients with cyanotic heart disease.

Full Definition

Desaturation episodes refer to acute or chronic periods of decreased oxygen saturation that occur in patients with cyanotic congenital heart disease. These episodes may be triggered by crying, feeding, or physical activity and represent inadequate pulmonary blood flow or intracardiac mixing. Severe desaturation episodes may require immediate intervention including knee-chest positioning, supplemental oxygen, or urgent surgical intervention. Monitoring and management of desaturation episodes is crucial in the care of patients with complex congenital heart disease.

Usage

Usage note: Include specific saturation values when editing clinical documentation of desaturation episodes.

In Context

  • "The patient experienced frequent desaturation episodes requiring supplemental oxygen." — hospital progress note
  • "Home pulse oximetry monitoring revealed concerning desaturation episodes during sleep." — cardiology clinic note

Also known as

hypoxic episodes cyanotic spells

Don't confuse with

apneic episodes bradycardic episodes

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