A portable instrument for arteriosclerosis assessment containing sensor module, acquisition board and embedded module was developed for home care in this paper. The sensor module consists of one ECG module and three pulse wave extraction modules, synchronously acquiring human ECG and pulse wave signal of carotid, radial, and dorsal, respectively. The acquisition board converts the sensor module's analog output signals into digital signals and transmits them to the embedded module. The embedded module realizes the functions including signal display, storage and the calculation and output of pulse wave velocity. The structure of the proposed portable instrument is simple, easy to use, and easy to expand. Small size, low cost, and low power consumption are also the advantages of this device. Experimental results demonstrated that the proposed portable instrument for arteriosclerosis assessment has high accuracy, good repeatability and can assess the degree of atherosclerosis appropriately.
Arteriosclerosis ; diagnosis ; Equipment Design ; Humans ; Monitoring, Ambulatory ; instrumentation

Precision medicine significantly promotes the diagnosis and treatment of various diseases,which also induces the revolution of evidence-based clinical practice guidelines,as well as multimodality therapy for hepatocellular carcinoma (HCC).In the application of the concept of precision medicine and evidence-based medicine,surgeons will concretize the precise surgery,establish an improved multimodality therapy for HCC,and ultimately achieve the goal of overall benefit.This is also a new task of surgeons in the precision medicine era.

Based on the review of the existing evidence of the research on the hospital management institutional ethics , this paper found researches in this area in the last two decades focused on the concept and level definition of hospital management institutional ethics;the construction of hospital management institutional ethics;the value and function of hospital management institutional ethics, and the reason and result of lack of hospital management insti-tutional ethics. On this basis, it pointed out the deficiency of the current researches and outlook the prospects.

The increasing need for ideal body shape makes more and more patients choose to receive different types of breast reconstruction surgery after mastectomy. Right now, it is a key problem for the multidisciplinary treatment to find an optimal sequence of comprehensive treatment from which those patients can receive the maximum benefits and a good balance between ideal body shape and satisfactory antitumor outcomes. This paper reviews the latest research advances in the effect of postoperative radiotherapy on breast shape after breast reconstruction, the sequential relationship between the replacement of the temporary tissue expander with the permanent breast prosthesis and postoperative radiotherapy, breast construction surgery, and radiotherapy techniques. To provide a basis for clinical practice, this paper proposes a flow chart for decision?making in reconstruction surgery and adjuvant treatment based on the current literature and clinical data.

Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) is used for patients with advanced hepatocellular carcinoma who cannot tolerate major hepatectomy due to an insufficient future liver remnant,but the morbidity and mortality rate in the perioperative period are still high.Available studies indicate that damage control surgery variations such as laparoscopic procedure and associating radiofrequency/microwave ablation/liver tourniquet and portal vein ligation could improve the morbidity and mortality associated with ALPPS,as could portal vein embolization.However,randomized controlled trials are needed to determine benefits in technical variations.

Objective To explore the effect of dexmedetomidine preconditioning on antioxidant ability in Rats Brain with focal cerebral ischemia/reperfusion.Methods Forty-two healthy male SD rats,weighted 250-280 g,were randomly divided into three groups (n = 14):sham-operation group (group Sham):in which carotid artery was exposed but MCAO was not performed;ischemia/reper-fusion group(group IR):NS were injected intraperitoneally at 30 minutes before the MCAO;dexme-detomidine group (group Dex):dexmedetomidine 100 μg/kg were injected intraperitioneally injected at 30 minutes before the MCAO.Focal cerebral ischemia-reperfusion (IR)model in rats was made by transient occlusion of the middle cerebral artery occlusion (MCAO)using a nylon thread with rounded tip inserted into internal carotid artery and advanced cranially until resistance was met.MCAO was maintained for 2 hours followed by 24 hours reperfusion.Neurologic deficit scores(NDS),the infarc-tion volume as well as the activities of endogenous antioxidants (such as superoxide dismutase(SOD), glutathione peroxidase(GSH-PX),glutathione reductase (GR),catalase (CAT))in ischemic brain were evaluated 24 h after reperfusion.Results Compared to group Sham,the neurologic deficit scores and the infarction volume in group Dex and IR were significantly higher,but the concentration of SOD,GSH-PX,GR,CAT were significantly lower(P <0.05).Compared to group IR,however,the neurologic deficit scores and the infarction volume in group Dex were significantly lower,but the concentra-tion of SOD,GSH-PX,GR,CAT were significantly higher (P <0.05).Conclusion Dexmedetomidine can protect the brain from focal cerebral ischemia-reperfusion injury,and its mechanism maybe relate to preserving the activities of endogenous antioxidants.

OBJECTIVE:To observe the effects of the essential conditions of storage on quality of Semen Armenniacae Am_arum (SAA).METHODS:Gravimeteric and titration method were used and orthogonal design was adopted.RESULTS:Obvious effects of baking temperature and storage duration on content of amygdalin,temperature on acid value of SAA,temperature and humidity and storage duration on peroxide value of SAA were found.CONCLUSION:The best conditions of storing SAA are as follows:A1,B1,C3 and short storage duration.

Acupuncture Therapy ; Humans ; Lower Extremity ; blood supply ; Male ; Middle Aged ; Varicose Ulcer ; therapy

Objective To explore the clinical value of prenatal screening by detecting α-fetoprotein(AFP),β-human chorionic gonadotrophin(β-HCG)and free estriol(u-E3)levels in the second trimester of pregnancy.Methods AFP,β-HCG and u-E3 were de-tected in 3 595 second trimester pregnant women by chemiluminescence.The risk value was calculated by combining with the factors of age,pregnant weeks,body weight,etc.Then the high-risk pregnant women were carried out the amniotic fluid cells chromosome karyotype analysis and B-ultrasonic examination.Results Among 3 595 pregnant women,the screening positive rates of Down′s syndrome(DS),Edward′s syndrome(ES)and neural tube defects(NTD)were 3.70%(133/3 595),0.11%(4/3 595)and 1.44%(52/3 595)respectively.In the prenatal screening,there were 189 cases of high risk pregnant women,among them 87 cases were per-formed the prenatal diagnosis of amniotic fluid cells chromosome karyotype analysis and B-ultrasonic examination,6 cases were defi-nitely diagnosed,in which 3 cases were DS,2 cases were NTD and 1 case was ES.Conclusion Prenatal screening is a non-invasive detection method and has the important clinical application value for avoiding the birth of DS,ES and NTD neonates.

A multi-channel meridian impedance detector used to the 3D meridian visualization positioning is presented. The detector is designed with the four-electrode method based on current driving according to low impedance of the meridian. The detector consists of power-supply module, sinusoidal signal generator, voltage-controlled current source, isolation amplifiers, filter circuit, amplitude detectors and so on.
Amplifiers, Electronic ; Electric Impedance ; Electrodes ; Meridians