Application Of Nasal High-flow Oxygen Therapy In Sequential Oxygen Therapy After Extubation Of Thoracic Surgery

Objective: To evaluate the efficacy of nasal high flow oxygen therapy in sequential oxygen therapy after general anesthesia and extubation in patients undergoing thoracic surgery.Method: A retrospective analysis was conducted on 15 patients admitted to the Respiratory Intensive Care Unit(RICU)from May 1,2021 to March 10,2023,who underwent thoracic surgery and underwent extubation.According to the inclusion criteria,all patients who met the extubation procedure in the observation group received nasal high flow oxygen therapy(HFNC)after extubation,The control group consisted of 20 patients who underwent conventional oxygen therapy(COT)after extubation.The body temperature(T),respiratory rate(RR),heart rate(HR),mean arterial pressure(MAP),p H,arterial blood partial pressure of carbon dioxide(Pa CO2),arterial partial pressure of oxygen(Pa O2),arterial blood lactic acid(Lac),and oxygenation index(PF ratio)of patients in the two groups were collected 1h,12 h,and 24 h after extubation,and the RICU stay time,total length of stay,and ICU return events of patients in the two groups were recorded Second intubation event,patient comfort,and comparison of differences.Result: There were different intervention methods in the RR and HR indicators of the two groups of patients after extubation,which would affect each other with treatment time.The RR and HR indicators in the observation group significantly decreased with treatment time within 24 hours(P<0.05),while the RR in the control group increased with treatment time(P<0.05);There was no significant difference in T,MAP,p H,Pa CO2,Pa O2,Lac,and PF ratio between the two groups of patients after extubation(P>0.05),and there was no significant difference in RICU stay time and total hospital stay between the two groups of patients(P>0.05);There was no significant difference in ICU return rate and reintubation rate between the two groups of patients(P>0.05);The comfort level of the observation group was significantly better than that of the control group in both groups of patients(P<0.05).Conclusion:Compared with COT,HFNC sequential oxygen therapy can improve patients’ respiratory rate and heart rate in a short time,and has no obvious benefit in hemodynamics improvement and respiratory function enhancement.However,patients’ comfort is high.The use of HFNC sequential oxygen therapy in patients with extubation after thoracic surgery can be reasonably selected according to clinical conditions.