Values of Ultrasound Detection of Variations in the Inner Diameter of the Inferior Vena Cava and Subclavian Vein in Predicting Post-induction Hypotension in General Anesthesia
Objective:To analyze the values of ultrasound detection of variations in the diameter of inferior vena cava(IVC)and subclavian vein(SCV)in predicting post-induction hypotension(PIH)in general anesthesia.Method:A total of 204 patients who underwent general anesthesia surgery in Xianning First People's Hospital from May 2021 to May 2023 were selected as the study subjects retrospectively,they were divided into a study group(86 patients with PIH)and a control group(118 patients without PIH)based on whether they had PIH.The basic data,the blood pressure indexes before anesthesia induction and the dosage of anesthesia induction drugs between the patients in the two groups were compared.Maximum value of IVC inner diameter(IVCmax)and minimum value(IVCmin),maximum value of SVC inner diameter(SCVmax)and minimum value(SCVmin)were compared,the collapsibility index of IVC(IVCCI)and the collapsibility index of SCV(SCVCI)were calculated.The predictive values of IVC,SCV inner diameter and variation on general anesthesia PIH were analyzed by receiver operating characteristic(ROC)curves.Result:There were no statistically significant differences in the basic data,blood pressure indexes before anesthesia induction,and the dosage of anesthesia induction drugs between the patients in the two groups(P>0.05).The levels of IVCmax,IVCmin,SCVmax,and SCVmin of the patients in the study group were lower than those in the control group,while the levels of IVCCI and SCVCI were higher than those in the control group,the differences were statistically significant(P<0.05).The ROC curve analysis results showed that the ROC areas under curve(AUC)of PIH predicted by the levels of IVCmax,IVCmin,SCVmax,SCVmin,IVCCI,and SCVCI before anesthesia induction were 0.674,0.675,0.618,0.707,0.895,and 0.905,respectively(P<0.05).AUC,the sensitivity under cut-off value of SCVCI were the highest,which was 0.905,65.12%respectively.Conclusion:The patients with PIH in general anesthesia can exhibit reduced inner diameter of IVC and SCV,as well as increased inner diameter variation indicators such as IVCCI and SCVCI.Detecting these variation indicators employing vascular ultrasound technology can assist in predicting the risk of PIH.
万方数据
维普
