The Clinical Value of Applying TOF and TcPO2 to Guide Elderly Patients Extubation

Three hundred aged(age\>65y) patients were randomized to Commom group(C group). Qualitative TOF monitoring (TOF group). Qualitative TOF and transcutaneous partial pressure of carbon dioxide monitoring(Unite group). Anesthetic management was standardized in all subjects .The patients of C group were extubated when standard criteria were met; T group patients had a TOF ratio of greater than 0.90 as an additional extubation criterion;and U group patiens were extubated when TOF ratio is greater than 0.90 and meanwhile transcutaneous partial pressure of carbon dioxide recovered to preoperative ±5mmHg .All the patients were transport to the PACU after extubation.Compare the adverse respiratory events at the moment of extubation, on the arrival of PACU, at 30min and 60min moment in the PACU respectively.