| Objective: To evaluate the changes of diaphragmatic function in septic patients by bedsid ultrasound using contraction velocity and excursion-time index.Method: This study included 59 case of adult patients with sepsis from September 2018 to January 2020,and 59 cases of healthy subjects who underwent regular physical examinations during the same period were enrolled randomly in the control group,according to the age and sex 1:1 matching principle.The above 118 subjects completed the bedside ultrasound examination within 24 hours and collected diaphragmatic function parameters under two states of qiute breath and deep breath,including diaphragm excursion,inspiratory time,contraction velocity(excursion/ inspiratory time,reflected the internal contraction ability of the diaphragm)and excursion-time index(excursion×inspiratory time,reflected diaphragmatic work).The general baseline data characteristics and ultrasonic detection data between the two groups were analyzed by SPSS.Results: Baseline characteristics: there was no significant difference in body mass index,underlying diseases and mean arterial pressure between septic group and control group(both P>0.05).Diaphragmatic parameters: Both of quiet breath and deep breath excursion in the septic group was also significantly less than that in the control group(both P<0.05).Both of quiet breath and deep breath inspiratory time in the septic group was significantly less than that in the control group(both P<0.05).The deep breath contraction velocity in the septic group was significantly greater then control group(P=0.01).Both of quiet breath and deep breath excursion-time index in the septic group was significantly less than that in the control group(both P<0.05).Conclusion: In septic patients,the contraction velocity in deep breathing and excursion-time index was decreased,which reflected the decrease of diaphragm contractility and work.Bedside ultrasound can effectively evaluate sepsis patients with decreased diaphragmatic dysfunction. |
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