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Updated: Jun 16, 2026

Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department
Published on: January 29, 2011
Leak in the breathing circuit: CO2 absorber and human error
Goneppanavar Umesh1, Kaur Jasvinder, Roy Sagarnil
1Department of Anaesthesiology, Kasturba Medical College, Manipal, 576104, India. drumeshg@yahoo.co.in
Anesthesia breathing circuit leaks can stem from carbon dioxide (CO2) absorbers. This case highlights a significant leak caused by a CO2 absorber issue, even with precautions, underscoring potential human error.
Area of Science:
- Anesthesiology
- Medical Device Safety
Background:
- Breathing circuit leaks during anesthesia pose risks.
- Carbon dioxide (CO2) absorbers have been implicated in previous reports of leaks.
- Common causes include defective canisters, improper chamber closure, and overfilling with sodalime.
Observation:
- A case of significant breathing circuit leak during anesthesia is presented.
- Precautions were taken to prevent known issues with the CO2 absorber.
- Despite precautions, a leak occurred, necessitating investigation.
Findings:
- The leak was found to be secondary to a problem with the CO2 absorber.
- The specific absorber issue was ultimately attributed to human error, despite preventative measures.
- This suggests that human error can manifest in complex ways leading to device malfunction.
Implications:
- Highlights the persistent risk of human error in medical device operation, even with established protocols.
- Suggests a need for enhanced vigilance and potentially novel strategies to mitigate human error related to CO2 absorber function.
- Emphasizes the importance of thorough troubleshooting and root cause analysis in anesthesia equipment failures.
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