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Respiratory muscle fatigue

D K McKenzie1, F Bellemare

  • 1Department of Respiratory Medicine, University of New South Wales, Sydney, Australia.

Advances in Experimental Medicine and Biology
|January 1, 1995
PubMed
Summary
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Ventilatory failure in lung and nerve diseases stems from either respiratory muscle fatigue or impaired central nervous system drive. This review examines the ongoing debate regarding the primary cause of respiratory failure.

Area of Science:

  • Pulmonology
  • Neurology
  • Respiratory Physiology

Background:

  • Ventilatory failure is a critical complication in diverse pulmonary and neuromuscular disorders.
  • The underlying mechanisms remain debated, with controversy surrounding peripheral versus central causes.

Purpose of the Study:

  • To review and analyze the evidence concerning the etiology of ventilatory failure.
  • To discuss the controversy regarding respiratory muscle fatigue versus central nervous system drive failure.

Main Methods:

  • Literature review of studies on ventilatory failure.
  • Analysis of evidence supporting peripheral and central mechanisms.
  • Synthesis of findings to address the controversy.

Main Results:

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  • Evidence suggests contributions from both peripheral respiratory muscle fatigue and central drive abnormalities.
  • The relative importance of each mechanism may vary depending on the underlying disease.

Conclusions:

  • Ventilatory failure is multifactorial, involving both peripheral and central factors.
  • Further research is needed to fully elucidate the interplay between respiratory muscles and central control in disease states.