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Updated: Jun 10, 2026
05:51
Measuring Diaphragm Thickness and Function Using Point-of-Care Ultrasound
Published on: November 3, 2023
Diaphragm weakness and mechanical ventilation--what's the critical issue?
Leigh Ann Callahan1, Gerald S Supinski
1Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kentucky, 740 South Limestone, Lexington, KY 40536, USA. lacall2@email.uky.edu
Critical Care (London, England)
|August 13, 2010
Summary
Critically ill patients often experience significant diaphragm weakness. This profound weakness, potentially exacerbated by mechanical ventilation, may be a primary cause of respiratory failure in these individuals.
Area of Science:
- Critical Care Medicine
- Respiratory Physiology
- Neuromuscular Disorders
Background:
- Animal studies suggest mechanical ventilation (MV) causes diaphragm weakness and atrophy.
- Human data confirming MV-induced diaphragm weakness are lacking.
- The study by Hermans et al. investigates diaphragm function in critically ill patients.
Discussion:
- The study provides evidence of profound diaphragm weakness in critically ill patients.
- The exact causes of diaphragm weakness (MV, sepsis, corticosteroids, hyperglycemia) are complex.
- Diaphragm weakness may be a significant factor in respiratory failure.
Key Insights:
- Many critically ill patients exhibit significant diaphragm weakness.
- This weakness is a crucial finding, irrespective of its precise cause.
- The magnitude of diaphragm weakness suggests a major role in respiratory failure.
Outlook:
- Further research is needed to elucidate the multifactorial causes of diaphragm weakness.
- Understanding diaphragm weakness is critical for managing respiratory failure in critical care.
- Potential therapeutic strategies targeting diaphragm function may improve patient outcomes.
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