Application effect of a modified sputum aspiration method in the detection of respiratory pathogens in ICU patients with pulmonary infection
Dong Yue
Xu Ping
Yang Wenwen
Lu Xuan
Abstract：Objective To explore the optimization effect of a modified sputum aspiration method on the detection of respiratory tract pathogenic bacteria in ICU patients with pulmonary infection.Methods A total of 90 patients with pulmonary infection admitted to ICU of the First People's Hospital of Lianyungang from January 2023 to December 2023 were selected and randomly divided into an observation group and a control group.The observation group adopted the modified sputum aspiration method,while the control group adopted the conventional sputum aspiration method.The pathogen DNA concentration and positive detection rate in sputum specimens,and the patients'blood gas analysis indicators,changes in blood oxygen saturation,incidence of adverse reactions,length of hospital stay and sputum aspiration time were compared between the two groups.Results The DNA concentration of pathogenic bacteria in the observation group[(103.44±20.81)μg/ml vs.(94.07±19.54)μg/ml,P<0.05]and the positive detection rate(77.78%vs.55.56%,P<0.05)were significantly higher than those in the control group.After sputum specimens were collected,PaO2 and PaCO2 in the observation group were better than those in the control group(P<0.05).The rate of decrease in blood oxygen saturation in the observation group was lower than that in the control group,and the difference was statistically significant(P<0.05).The incidence of respiratory mucosal bleeding in the observation group was lower than that in the control group,and the difference was statistically significant(P<0.05).The hospitalization time of the observation group was shorter than that of the control group[(10.26±6.58)d vs.(14.13±7.26)d,P<0.05].The single sputum aspiration time of the observation group was shorter than that of the control group,but the difference was not statistically significant(P>0.05).Conclusion The modified sputum aspiration method can improve the quality of sputum specimens,optimize the detection efficiency for pathogenic bacteria,and provide basis for precise clinical diagnosis and treatment.
Keywords：Modified suction methodIntensive care unitLung infectionsDetection of respiratory pathogens
Publication Date：2025-07-20
Online Publishing Date：2026-01-30(First online date of this platform, not the publication date of the document)
Pages：5( 50-54 )