Interventional treatment via portal vein system plays an important role in treating some liver diseases,such as interventional treatment for portal vein tumor thrombus,portal hypertension with liver cirrhosis,portal vein thrombosis and selective portal vein embolization inducing compensatory hypertrophy of the remnant liver.The author introduces the routes,methods and efficacies of the interventional treatment via portal vein.

Objective To compare the effects of three different plasma substitutes, 6% hydroxyethyl starch (HES 200/0.5), 4% Gelofusine and 5% Polygeline, on blood coagulation and arterial blood gases and electrolytes during acute hypervolemic hemodilution (AHHD) . Methods Seventy ASA Ⅰ - Ⅱ adult patients undergoing elective orthopedic surgery with the intraoperative blood loss predicted to exceed 500 ml were entered in this study. Radial artery was cannulated for BP monitoring and blood sampling before induction of anesthesia. Anesthesia was induced with fentanyl 3 ?g?kg-1, propofol 2 mg?kg-1 and atracurium 0.5 mg? kg-1 and maintained with enflurane (1-2 MAC) . The patients were mechanically ventilated ( VT= 10 ml? kg-1 , RR = 12 bpm) after tracheal intubation. Internal jugular vein was cannulated after induction of anesthesia for CVP monitoring. After induction of anesthesia the patients were randomized to receive 20 ml?kg-1 of either 6% HES (group H, n = 20), 4% Gelofusine (group G, n = 20), 5% Polygeline (group P, n = 20) or lactated Ringer's solution (group R, n = 10) within 20-40 min. Arterial blood samples were taken before AHHD, at the end of and 30 min after the infusion of substitute for determination of activated coagulation time (ACT), thromboelastography (TEG) , blood gas analysis and plasma electrolytes. Blood volume expansion rate was calculated [ blood volume expansion rate = (Hct before AHHD - Hct after AHHD) / Hct before AHHD] .Results The four groups were comparable with respect to sex, age and body weight. Lactated Ringer' s solution was significantly less efficient in expanding intravascular blood volume than the 3 plasma substitutes, but there was no significant difference in blood volume expansion rate among group H, G and P. CVP increased significantly after AHHD compared with the baseline value before AHHD in group H, G and P (P

Objective To explore the clinical features of acute ischemic bowl disease in order to guide clinical treatment and avoid the severe complications.Methods 25 cases diagnosed as ischemic bowl disease were enrolled retrospectivly analysed the clinical features of symptoms,signs,laboratory test results,abbominal enhanced CT and CTA,enteroscopes of these patients.Results Among the 25 cases accorrding to first presentation of first contacts,the cardinal symptoms were spectively abdomial pain 20 (80％),abdomial distension 16 (64％),diarrhea 18 (72％),vomiting 13 (52％),hemafecia 6 (24％),bloody purulent stool 8 (32％),watery stool 7 (28％),fever 11 (44％) and physical signs were spectively local tenderness 12(48％),peritonitis sign 9(36％),active bowl sound 7 (28％),weak or disappeared bowl sound 5 (20％).22 of 25 cases were positive with ocult blood test of stool and 23 of 25 cases showed elevated D-dimer concentration(more than 500μg/L) within 24 hours after first contacts.All the 25 cases were dignosed with CTA and 1 case was performed with enteroscopy which showed that local mucosa of sigmoid colon was congestive,edema,submucosal extravasated blood and some part was bleeding.Conclusion The patient with high risk factors who suffered from the tetralogy of severe abdominal pain,intense evacuation symptoms,highly elevated D-dimer concentration and positive ocult blood test,is stongly suggested to be a ischemic bowl disease and should be performed the abdomial CTA or DSA examination in time to avoid missing the golden opportunity to cure.

Animals ; Drugs, Chinese Herbal ; chemistry ; Humans ; Medicine, Chinese Traditional ; Microscopy, Confocal ; Muscle, Smooth, Vascular ; ultrastructure

Avian influenza viruses (AIV) can cause serious economic losses and threaten to human health. The laboratory methods for rapid and accurate detecting AIV ensure timely implementation of intervention strategies so that it plays a key role in avian influenza prevention and control. The laboratory technologies for detecting AIV are topic subject and developed quickly those days. This paper reviews the advances of laboratory diagnosis technologies for AIV at 3 aspects of virus isolation, immunoassay and molecular diagnostics.

Enzyme-linked immunosorbent assay for determination of thyroid-stimulating antibody in the sera of patients with Graves' disease was established using ganglioside (GLS) purified from bovine brain as binder. It was applied in clinical practice. The results showed that LATS could react with ganglioside under suitable conditions. Very significant difference was observed between normal subjects and untreated GD (P

Objective To find a new algorithm for oscillometric blood pressure measurement. Method A coefficient difference comparative method was proposed to measure the difference of adjoining pulse waves and their comparative ratios. And the turning point was judged by priority way in the range. Result The new method settled the problem of miscarriage of justice of the turning point around average pressure and improved the accuracy of blood pressure measurement. Conclusion It can detect difference between cardiovascular patients and normal persons. And it is effective and reliable in blood pressure measurement. It provides a convenient method for researching, preventing and epidemiological studies of cardiovascular diseases in our country.

[Objective]To explore the biomechanical stability of fixation with two and three cannulated compression screws in treatment of the adductive femoral neck fractures by the three-dimensional finite element analysis(FEA).[Method]Two FEA models of two screws and three screws for adductive femoral neck facture fixations were set up to investigate the simulated loading of three different conditions.[Result]At the condition of the heel touching the ground and the middle position,there was no difference in the biomechanical stabilities of the two models.However,at the condition of the tiptoe departing from the groud,the model of three screws fixation was better in torsion resistance and stretching resistance.[Conclusion]The biomechanical stability of fixation with two screws is determined by the direction of loading.Three cannulated compression screws fixation provides better biomechanical stability.

Objective: To detect tumor cells in the peripheral blood of patients with breast cancer by usingthe MAGE-A1 and MAGE-A3 genes as specific tumor markers. Methods: Peripheral blood was obtained from 40 patients with breast cancer and 20 patients with benign diseases. The mRNA of the MAGE-A1 and MAGE-A3 genes in the peripheral blood mononuclear cells (PBMC) was detected by nested RT-PCR. The MAGE-A1 and MAGE-A3 transcripts in breast cancer were detected by RT-PCR. Results: Of the 40 breast cancer patients, MAGE-A1 and MAGE-A3 mRNA were positive in 12.5% (5/40)and 17.5%(7/40)of PBMC, respectively, and in 15.0 %(6/40)and 22.5 %(9/40)of breast cancer tissues, respectively. In the PBMC of the 40 breast cancer patients, 10(25.0%)samples were detected to express at least one type of MAGE mRNA. MAGE mRNA were not detected in the PBMC from the patients whose tumors did not express the MAGE genes, nor in the PBMC from the 20 patients with benign diseases. The positive rate of MAGE mRNA in the PBMC was closely correlated with the TNM stages. Conclusion: MAGE-A1 and MAGE-A3 mRNA could be specifically detected in the PBMCof breast cancer patients by our methods. They may be used as specific tumor markers for the detection of the circulating breast cancer cells.

Blood pressure (BP) is one of important physiological parameters which reflect the activity of cardiovascular system. The discriminant method of BP is the key to improve the accuracy of measurements. In this paper, the principle of oscillation method is introduced first. The factors that influence the accuracy of this method and the preprocessing of pulse wave are also analyzed. Then, an improvement method based on oscillation method is proposed by means of the flow progress diagram, which is applied to measuring BP simulator and human body. The measurements are compared with the standard values of BP simulator and the measurements by Korotkoff sound method respectively. The results validate that the accuracy and the repeatability of BP determination are improved dramatically.