Clinical study of bedside diaphragmatic ultrasound in mechanical ventilation weaning of critically ill patients
[Objective]To analyze the clinical value of bedside diaphragmatic ultrasound in mechanical ventilation weaning in critically ill patients.[Methods]Eighty severe mechanical ventilation patients admitted to Xinyang Central Hospital from May 2022 to May 2023 were selected and divided into an observation group(48 cases,successful weaning)and a control group(32 cases,failed weaning)based on their weaning results.The right diaphragm displacement,diaphragm contraction velocity(0 min,5 min,30 min),diaphragm thickness,and percentage increase in diaphragm thickness were compared between the two groups in the autonomous breathing experiment,and the diagnostic efficacy of ultrasound diaphragm function assessment was analyzed.[Results]In the autonomous breathing experiment,the displacement distance of the right diaphragm and the contraction speed of the diaphragm increased with time(0 min,5 min,30 min),while the control group and observation group increased,and the amplitude of changes in the observation group was greater(compared between the two groups).In the autonomous breathing experiment,the percentage increase in diaphragm thickness was higher in the observation group(P＜0.05).In patients with severe mechanical ventilation who successfully predicted weaning,the critical value was set as follows:the right diaphragm displacement distance was 1.15 cm(≤ 1.15 cm was abnormal,＞1.15 cm was normal),the diaphragm contraction velocity was 1.45 cm/s(≤ 1.45 cm/s was abnormal,＞1.45 cm/s was normal),and the percentage of diaphragm thickness increase was 25％(≤25％was abnormal,＞25％was normal).The specificity,sensitivity,and accuracy of the evaluation of various diaphragm function indicators were higher.[Conclusion]In critically ill patients undergoing mechanical ventilation withdrawal,bedside ultrasound diaphragmatic function assessment showed that patients with successful withdrawal had better diaphragmatic function,and in predicting successful withdrawal in critically ill patients undergoing mechanical ventilation,ultrasound diaphragmatic function assessment had a higher diagnostic efficacy.
severe illnessmechanical ventilationwithdrawal of aircraftbedside diaphragm ultrasound
万方数据
维普
