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Capnography for End-Tidal CO2 Monitoring

Last updated: September 21, 2015
Project Number: HT0007
Result type: Report

End-tidal carbon dioxide (ETCO2) is the level of CO2 that is released at the end of an exhaled breath. The evidence suggests that ETCO2 measurement can provide an indication of cardiac output and pulmonary blood flow. Capnography is a non-invasive method for ETCO2 measurement that displays the measurement in both graphical and numerical forms. With capnography, a patient’s ventilation status is monitored in real-time. Capnography devices have application across several hospital and pre-hospital settings; the technology is at various stages of adoption, depending on the clinical area. Anesthesiologists have been using capnography for decades to monitor ETCO2 in patients receiving general anesthesia. More recently, advances in capnography have expanded its use beyond anesthesiology. The main drivers for the CADTH Health Technology Assessment report were the growing utility of ETCO2 monitoring technology in diverse clinical settings, uncertainty in the benefits and cost-effectiveness of capnography devices, and access and implementation issues.

The project had three key components:

  • Protocol
  • List of Included Studies
  • Science Report