Abstract
Objective To explore the value of carbox dioxide(CO2) for the upper gastrointestinal endoscopic mucosal dissection(ESD). Methods A total of 158 patients who underwent ESD from January 2012 to May 2014 at Endoscopy Center of Dongguan Hospital were enrolled in the study. The patients were randomly divided into air group and CO2 group. The arterial partial pressure of CO2(PaCO2), the monitering results of SpO2 before, during, afte operation, abdominal pain after operation and postoperative complications were assessed. The safety and advantage of CO2 of the upper gastrointestinal ESD were comparative analyzed. Results PaCO2 of air group and CO2 group during the ESD procedures[(47.8±5.4)mmHg, (45.1±5.5)mmHg] was significantly higher than that before[(37.2±4.6)mmHg, (36.3±3.9)mmHg] (P 0.05); all the SpO2 were greater than 90%, and it was not significantly different between the two groups(P>0.05). The abdominal pain score of CO2 group was significantly lower than that of air group less than 2 h after wake-up (P 0.05). The bleeding rate of air group and CO2 group during and after operation was not significantly different(P>0.05), and there were no other serious complications. Conclusion CO2 is safe in the upper gastrointestinal ESD, and it can reduce postoperative abdominal pain, so it is suitable for clinical application. Key words: Carbon dioxide; Air; Endoscopic mucosal dissection
Published Version
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