Observation on the Effects of Using Disposable Respiratory Filters in Preventing the Cross-Infec-tion in Patients Undergoing Invasive Mechanical Ventilation During Prehospital Emergency Transport
Objective To investigate the effect of using disposable respiratory filters in prehospital emer-gency transport to prevent cross-infection in patients with invasive mechanical ventilation.Methods Con-venience sampling method was used to select 40 patients who were transported through Taiyuan Emergen-cy Center and used invasive mechanical ventilation from January 1 to December 31,2021.They were ran-domly divided into the experimental group and the control group,with 20 cases in each group.One disposa-ble respiratory filter was installed at the ventilator end and the patient end of the ventilator used by the pa-tients in the experimental group,and not in the control group.The samples in the ventilator tubing were collected for bacterial culture after the transfer is completed,and the condensate volume was collected and measured,and the differences in colony number and condensate between the two groups were compared.Re-sults The number of colonies in the observation group[(2.56±0.85)cfu/cm2]was significantly lower than that in the control group[(22.45±7.14)cfu/cm2],and the condensate volume[(0.56±0.33)ml]was lower than that of the control group[(5.24±3.16)ml].The differences were statistically significant(all P＜0.05).Conclusions Disposable respiratory filters are easy to operate and convenient to use,and can effec-tively reduce the colonies and condensate volume in the ventilator tubing in patients with invasive mechani-cal ventilation.They are worthy of clinical promotion and application.
mechanical ventilationrespiratory filterventilatorscross infectionemergency transport
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