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Updated: May 12, 2026
07:52
Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department
Published on: January 29, 2011
Carbon dioxide clearance in critical care
R Tiruvoipati1, J A Botha, D Pilcher
1Department of Intensive Care Medicine, Frankston Hospital, Frankston, Victoria, Australia. travindranath@hotmail.com
Anaesthesia and Intensive Care
|March 28, 2013
Summary
Lung protective ventilation reduces mortality but can cause hypercapnia. This review explores the debated pros and cons of hypercapnia and hypercapnic acidosis in acute respiratory failure.
Area of Science:
- Critical Care Medicine
- Pulmonary Medicine
- Respiratory Physiology
Background:
- Lung protective ventilation (LPV) with limited tidal volumes and pressures reduces mortality in acute severe respiratory failure.
- LPV often leads to hypercapnia and hypercapnic acidosis, the clinical significance of which is debated.
Purpose of the Study:
- To define the effects of hypercapnia and hypercapnic acidosis in patients undergoing LPV.
- To analyze the advantages and disadvantages of managing carbon dioxide levels and explore methods for enhanced carbon dioxide clearance.
Main Methods:
- This is a review article, synthesizing existing literature on lung protective ventilation, hypercapnia, and acidosis.
- The review focuses on clinical arguments and physiological effects related to carbon dioxide management.
Main Results:
- The protective effects of LPV are well-established, but the role of associated hypercapnia and acidosis remains controversial.
- Some evidence suggests potential protective benefits of hypercapnia, while others advocate for aggressive carbon dioxide removal.
Conclusions:
- The management of hypercapnia and hypercapnic acidosis during LPV requires careful consideration of potential benefits versus risks.
- Further research is needed to clarify the optimal strategies for carbon dioxide elimination in acute respiratory failure.
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