Predictive value of ultrasonic measurement of inferior vena cava in general anesthesia-induced hypotension
Objective:To assess the value of ultrasonic measurement of inferior vena cava in predicting hypotension in patients following general anesthesia induction.Methods:Ninety adult patients(ASA grade Ⅰ-Ⅲ)scheduled for elective surgery under general anesthesia in our hospital,were included.All patients underwent preoperative measurement of the maximum and minimum diameter of the inferior vena cava(dIVCmax;dIVCmin)using ultrasound before anesthesia induction.Inferior vena cava variability(CI)was calculated,and the baseline mean arterial pressure(MBP)and heart rate(HR)of the patients before induction,as well as MBP and HR within 10 minutes after intubation,were recorded.Results:Scanning of inferior vena cava(IVC)failed in 10 patients.After general anesthesia induction,36 patients(45.00％)experienced hypotension.In the hypotension group,dIVCmax was lower than in the non-hypotension group(P＜0.05),yet the CI was higher(P＜0.001).Multivariate logistic regression analysis showed that increment in inferior vena cava variability(OR=1.174)was a risk factor for hypotension after general anesthesia induction(P＜0.001),whereas increment in the dIVCmax was a protective factor against hypotension after general anesthesia induction(OR=0.033;P＜0.05).The area under the ROC curve for CI,dIVCmax,and the combined prediction model was 0.851,0.654,and 0.909,respectively.Conclusion:Preoperative ultrasound measurement of CI and dIVCmax has certain guiding significance in predicting hypotension after anesthesia induction,and CI can be better predictive value for hypotension after anesthesia induction compared to dIVCmax.
万方数据
维普
