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Background The use of carbon dioxide (CO2) insufflation during endoscopic procedures is effective in reducing patient discomfort caused by bloating. However, transcutaneous arterial CO2 (PtCO2) monitoring usually is required for safety during long endoscopic procedures. To evaluate a new capnometer for monitoring end-tidal carbon dioxide (EtCO2) concentrations and to compare PtCO2 with EtCO2 measured...
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