Effects Of Critical Ultrasound Quick Assessment Scheme On The Etiological Diagnosis Of Acute Respiratory Failure In Post-operative Patients

Objectivc:To investigate the effects of critical ultrasound quick assessment scheme on the etiology diagnosis of acute respiratory failure in post-operative patients.Method:From January 2015 to December 2017,Post-operative patients with acute respiratory failure in SICU of Zhejiang Provincial People's Hospital were enrolled.They were randomly assigned into critical ultrasound group(assessed by lung ultrasonography,echocardiography and low limb venous sonography in addition to physical examination)and conventional group(assessed by physical examination and some lab tests).Time to preliminary diagnosis,time to final diagnosis and diagnostic accuracy of two groups were compared.The sensitivity and specificity of critical ultrasound quick assessment scheme for the etiology diagnosis of acute respiratory failure in post-operative patients was evaluated.Results:47 patients enrolled in critical ultrasound group and 40 patients enrolled in conventional group.The two groups showed no significant differences in clinical information or final diagnosis(P>0.05).The time to preliminary diagnosis,time to final diagnosis of critical ultrasound group(15 ± 5min,63 ± 7minrespectively)was shorter than that of conventional group(47 ± 13min,90 ± 10min,respectively,P<0.0001).The critical ultrasound group had more higher diagnostic accuracy than conventional group(91.49%VS 70.00%,P=0.0128).The sensitivity and specificity of critical ultrasound quick assessment scheme for the diagnosis of acute respiratory distress syndrome(ARDS)(sensitivity 91.67%/specificity 94.29%),acute pulmonary edema(sensitivity 90.00%/specificity 97.30%),pulmonary consolidation(sensitivity 88.8%/specificity 94.74%),and COPD/asthma(sensitivity 88.89%/specificity 97.37%)were quite good.Conclusions:Critical ultrasound quick assessment scheme can improve the management of post-operative patients suffered from acute respiratory failure with shorter diagnosis time and higher diagnostic accuracy.Effects on prognosis and efficacy of different critical ultrasound assessment scheme need further evaluation.