Objective To investigate the prevalence, characteristics and risk factors of superior vena cava and auxiliary branchs thrombosis in hemodialysis patients with internal jugular venous indwelling catheter. Methods A total of 43 cases on hemodialysis (HD) with indwelling short-term catheter in internal jugular vein from June to December in 2007 were enrolled in this study. The clinical data and biochemical indicators were collected to investigate the prevalence, characteristics and risk factors of venous thrombosis around indwelling catheter, such as, superior vena cava and auxiliary branehs in these patients. Results Short-term double Iumen internal jugular venous catheter were placed in 43 HD patients. Different degrees of central vein thrombosis were found in 21 of the 43 HD patients (48.8%). The ratio of thrombosis in jugular vein, brachiocephalic vein, subclavical vein and uperior vena cava was 100% (21/21), 28.6% (6/21), 23.8%(5/21) and 19.0%(4/21), respectively. Ten of the 21 HD patients (47.6%) with central vein thrombosis presented clinical symptoms. Five cases developed edema of the upper extremity, 2 cases had new-onset symptom's pulmonary embolism, and 3 eases developed blood overflowed from inlet port of circum-catheter. The ratio of diabetes mellitus, malignant tumor, the prevalence of increased level of serum lipoprotein a and plasma homocysteic acid were significantly higher in the HD patients with central vein thrombosis than that in those without central vein thrombosis. The odds ratio of diabetes mellitus, malignant tumor, high serum lipoprotein a and high plasma homocysteic acid was 5.758, 4.750, 6.967 and 8.533, respectively. Conclusions The prevalence of central vein thrombosis in HD patients with short-term indwelling catheter in internal jugular vein is quite high. Its clinical symptom is insidious but dangerous. Diabetes mellitus, malignant tumor, high serum lipoprotein a and high plasma homocysteic acid may be the important risk factors of central vein thrombosis in above HD patients.

Objective To summarize the prevention and treatment experience of complications of cardiac myxoma excision.Methods Cardiac myxoma excision were performed in 215 cases under general anesthesia,cardiopulmonary bypass and cardiac arrest condition.Results Two cases died from severe low cardiac output syndrome which eventually caused multiple organ failure.The remaining 213 cases were cured and discharged.Among 213 cases,low cardiac output syndrome occurred in 35 cases,re-open chest for bleeding was performed in 8 cases,30 cases in arrhythmia (including paroxysmal supraventricular tachycardia in 20 cases and ventricular premature in 10 cases),no vital organs embolism occurred.Follow-up was done to 200 patients for 1-8 years with a follow-up rate of 93.9％ (200/213).In 200 cases,1 case died from lung cancer,1 case recurred and was cured after re-operation.The remaining patients had no obvious abnormalities.Conclusion As the particularity of surgical treatment of cardiac myxoma,it is essential to take prevention measures to reduce complications of cardiac myxoma excision in perioperative periods.

Objective The antioxidative activities of extracts from Undaria pinnatifida in vitrowere tested. Methods Using the assay system of peroxide value (POV), diphenyl picryl-hydrazyl (DPPH), the antioxidative activities of various extracts were studied and comparedwith VE and VC. Results Different extracts from Undaria pinnatifida showed antioxidativeactivities, and petroleum ether extract showed the highest free radical scavenging efficiency.Conclusion petroleum ether extract has stronger antioxidative effect than others.

Objective To study the effect of ro ta ry magnetic field on experimental myocardial ischemia caused by Pitui trin (Pit) injection in rats. MethodsThirty rats with experimental myocardial ischemia induced by intravenous injection of Pit (2U/kg) were divided into three groups: control group, ischemia g roup, rotary magnetic field group. The ST-segment elevated amplitude, T -wave amplitude of ECG, serum NO content, SOD activity and MAD content in the three groups were observed and compared. Results The 30 mT rotary magentic field for 30 min significantly increa sed SOD activity ( P

The incompatibility of traditional Chinese medicine is an important part of traditional Chinese medicine compatibility theory,while early toxicity predetermination of traditional Chinese medi?cine is an important component of drug safety evaluation. Once a simple and reliable method to predict the compatibility of Chinese medicine and Chinese traditional medicine is established,it is possible to obtain the data of toxic reaction of Chinese herbal medicine quickly and early. Pregnane X receptor (PXR)is a ligand dependent transcription factor,acting as a ligand or activator of a large number of clinical drugs and of cytochrome P-450 CYP3A (CYP3A) gene expression induced by PXR. In the course of treatment of diseases,the activation of PXR may increase the risk of drug interactions and adverse reactions,resulting in decreased efficacy and even toxicity. This paper may provide a new method of drug toxicity predetermination depending on the PXR-CYP3A pathway.

Objective: To observe the effect of treatment for proliferative knee osteoarthritis (KOA) using combined acupuncture and medicated compression. Method: All 328 cases were randomized into an observation and control group, 164 cases in each. Combined acupuncture and medicated compression were adopted in the observation group, while oral administration of Zhui Feng Tou Gu Wan (Wind-removing and Bone-penetrating Pills) were adopted in the control group. The clinical effects in the two groups were evaluated 40 days after the treatment. Result: There were significant differences in both marked and total effective rates (P<0.05). Conclusion: Combined acupuncture and medicated compression can obtain better effect for KOA than oral administration of the Wind-Removing and Bone-Penetrating pills.

Objective: To study the proliferaton of two common histological variants of ameloblastoma. Methods: Thirty cases of ameloblastomas (15 cases of follicular and 15 cases of plexiform type) were analyzed immunohistochemically using Ki 67 antibody. The Ki 67 positive cells was counted and calculated by image analysis system. Results: The Ki 67 positive cells (%) in follicular ameloblastoma was more than those in the plexiform type (4.31?2.25 vs 3.76?1.96, P

common TiO2 by the comparison of these catalysts. Conclusion Catalysed by ultrasonic wave, a series of TiO2 catalysts will show a significant effect of killing colibacillus.

Objective To study changes of urinary protein in premature infants after asphyxia in order to explore influence of asphyxia on the renal function. Methods Microalbumin(mAlb),retinal-bindingprotein (RBP) ,N-acety-?-D-aminoglucosidase in urine and serum urea nitrogen(BUN),creatinine(Cr) were performed in 56 normal premature infants and 49 asphyxia ones with immunoturbidimetric method, ELISA method, rate method , enzymic method and picric acid method when they were 1,4,7 day age after born. Results (1)With ages increasing urinary mAlb took on decreasing trend in the same gestation age but there was no different while with the gestation age increasing in the same ages urinauy mAlb was decreased significantly (P

Objective Recent studies showed that change in plasma and cerebrospinal fluid (CSF) level of S100B protein was closely related to cerebral damage. The aim of this study was to investigate if deliberate hypotension induced by isoflurane can increase the release of S100B protein in CSF during clipping of intracranial aneurysm.Methods Thirty ASA Ⅰ - Ⅱ patients (16 male, 14 female) aged 24-68 yr undergoing elective intracranial aneurysm clipping were randomly divided into two groups : group A deliberate hypotension ( n = 15) and group B control ( n = 15) in which BP was maintained at normal level during operation. In both groups anesthesia was induced with midazolam 0.06 mg? kg-1 , fentanyl 3-5 ?g? kg-1 , propofol 2 mg? kg-1 and vecuronium 0.1 mg ? kg-1 and maintained with 1.2% isoflurane and intermittent intravenous (i. v.) blouses of fentanyl and vecuronium. After tracheal intubation the patients were mechanically ventilated (VT 8-10 ml?kg-1 , RR 12 bpm, I :E = 1:2). PaCO, was maintained at 35-40 mm Hg, In group A deliberate hypotension was induced by increasing the inhaled concentration of isoflurane until BP was reduced by 30 % -40 % of the baseline value. After clipping of aneurysm MAP was restored to baseline level. CSF level of S100B protein was measured before deliberate hypotension and 0, 2, 4 h after aneurysm clipping. Results (1) MAP was decreased from (95 ? 12) mm Hg to (59 ? 5) mm Hg 30 min after deliberate hypotension was started and restored to (75 ? 8) mm Hg 30 min after aneurysm was clipped. In group A both systemic peripheral vascular resistance and myocardial contraction acceleration were decreased but cardiac output and HR remained stable, as compared with those in group B. (2) CSF level of S100B protein was significantly increased 4 h after aneuuysm clipping in both groups but CSF level of S100B protein was significantly higher in group A than that in group B. Conclusion Deliberate hypotension induced by isoflurane increases the release of S100B protein and may worsen cerebral vasospasm and be detrimental to perioperative cerebral protection.