A world's first attempt of mixed-reality system guided inferior vena cava filter implantation under remote guidance of 5G communication

Deep vein thrombosis(DVT)is a manifestation of venous thromboembolism,which can result from long-term bed and lead to pulmonary embolism(PE),stroke,mesenteric artery embolis,etc.Patients after surgery without bed-off activity may prone to thrombosis,but traditional anticoagulant therapy is a contraindication for them because of high risk of postoperative hemorrhage.Inferior vena cava filter(IVCF)implantation is the most effective method to intercept thrombosis from lower limb and to prevent PE.However,radiation and contrast agent limit its application.Our team have successfully performed an IVCF implantation guided by a mixed-reality(MR)system,[1]which is a chance for critically ill patients to allow the IVCF implantation exposed under no Xray and require no contrast agent.5G can help remote holographic projection images between distant range,meeting the needs of experts to guide the operation of critically ill patients.We describe a case of weak woman after neurosurgery who can not tolerate traditional interventional surgery to prevent DVT from falling off.We performed a mixed-reality system guided IVCF implantation under remote guidance of 5G communication.

Association between dietary sodium intake and blood pressure variability in Chinese patients with hypertension

Background:The association between dietary sodium intake and blood pressure variability(BPV)in hypertensive patients remains unclear.The objective of this study was to demonstrate whether dietary sodium intake is a predictor of elevated BPV in Chinese patients with hypertension.Methods:A total of 235 patients with essential hypertension were enrolled in the Department of Cardiology,Chinese People’s Liberation Army(PLA)General Hospital in 2018 to 2019,all of whom underwent 24-h ambulatory blood pressure monitoring.BPV was calculated as the standard deviation(SD),coefficient of variation(CV),variation independent of mean(VIM)of blood pressure measurements,respectively,and divided into diurnal systolic BPV(SBPV),diurnal diastolic BPV(DBPV),nocturnal SBPV,and nocturnal DBPV.24-h urine samples were collected to measure 24-h urine sodium excretion,which represents dietary sodium intake.The relationship between dietary sodium intake and BPV was analyzed by using Spearman correlations and multiple linear regression analysis.Results:Nocturnal SBPV-SD,CV,VIM,and nocturnal DBPV-SD in the high urine sodium excretion group were significantly higher than those in the medium and low urine sodium excretion groups,whereas diurnal SBPV-SD,CV,VIM,diurnal DBPV-SD,CV,VIM,and nocturnal DBPV-CV,VIM were not.Using the Spearman correlation analysis,we found a linear correlation between 24-h urine sodium excretion and nocturnal SBPV-SD,CV,VIM(SD,r=0.22,P=0.001;CV,r=0.17,P=0.009;VIM,r=0.16,P=0.020),nocturnal DBPV-SD(r=0.21,P=0.001),respectively.After further adjusting for confounding factors by multiple linear regression,the positive correlations remained between 24-h urine sodium excretion and nocturnal SBPV-SD,CV,VIM(SD,β=0.224,P<0.001;CV,β=0.211,P=0.001;VIM,β=0.213,P=0.001),nocturnal DBPV(SD,β=0.215,P=0.001),respectively.Conclusions:Dietary sodium intake is associated with nocturnal SBPV in Chinese patients with hypertension.