[The mechanism of apnea during difficult breathing]

Biull Eksp Biol Med. 1993 Oct;116(10):339-41.
[Article in Russian]

Abstract

The experiments on anesthetized cats demonstrated that only a combination of hypoxia and inspiratory resistive loading induced respiratory arrest. The findings suggest that both central and peripheral mechanisms of apnea exist due to functional insufficiency of respiratory muscles as a result of synaptic disorder and excitatory contractility disorder in diaphragmatic muscle fibers.

MeSH terms

  • Animals
  • Apnea / etiology*
  • Apnea / physiopathology
  • Carbon Dioxide / physiology
  • Cats
  • Dyspnea / complications*
  • Dyspnea / physiopathology
  • Hypoxia / physiopathology
  • Muscle Contraction / drug effects
  • Muscle Contraction / physiology
  • Nitrogen / pharmacology
  • Oxygen / pharmacology
  • Oxygen / physiology
  • Partial Pressure
  • Respiration / drug effects
  • Respiration / physiology
  • Respiratory Muscles / drug effects
  • Respiratory Muscles / physiopathology
  • Time Factors

Substances

  • Carbon Dioxide
  • nitrox
  • Nitrogen
  • Oxygen