The paper deeply analyses the cause of the oxygen supply tube's low pressure which results in the increase of the oxygen density at hyperbarica chamber during the hyperbaric oxygen therapy,and provides the corresponding solutions and preventive measures.

Objective To analyse the cause of misdiagnosis of tuberculosis peritonitis and discuss feasibility for diagnosis of tuberculosis peritonitis by laparoscopy. Methods 12 patients misdiagnosed as tuberculosis peritonitis were retrospectively analysed. Results Tuberculosis peritonitis wrongly diagnosed because of atypical clinical behaviors in spite of specific laboratory examination. However, laparoscopy could diagnose tuberculosis peritonitis exactly and quickly. Conclusion Laparoscopy is an effective method of diagnosis for tuberculosis peritonitis.

Common Cold ; drug therapy ; epidemiology ; virology ; Humans ; Rhinovirus ; genetics ; isolation & purification

Objective To compare the efficacy of different analgesia regimens in elderly patients with femoral neck fracture undergoing posture changing during epidural anesthesia. Methods Ninety patients (35 males,55 females,aged 65-90 years,48-78 kg)with femoral neck fracture who would be treated with artificial femoral head replacement were randomly divided into 3 groups (n = 30 each):femoral nerve block group (group FNB),fascia iliaca compartment block group (group FIC)and intravenous group (group IV).Femoral nerve block or fascia iliaca compart-ment block was performed 30 min before epidural anesthesia (EA)in FNB group or FIC group re-spectively.Fentanyl 0.5 μg/kg was injected intravenously 3 min before EA.In the three groups,addi-tional 0.25 μg/kg fentanyl was administrated intravenously to keep the VAS scores <4 before posi-tioning.EA was performed between L1-2 in a position of troubled leg upper,and patients returned to supine position after epidural catheterization.The VAS scores at T0 (after entering the operation room),T1 (in supine posture before EA),T2 (before posture changing),T3 (while supine from lateral posture after EA),T4 (3 min after T3 ),the time for achieving EA,the fentanyl consumption, the cases of cardiovascular events and hypoxemia was recorded.Results Compared with group IV, VAS scores at T1 ,T2 ,the fentanyl consumption,time for achieving EA,and incidence of cardiovas-cular events and hypoxemia in group FNB and group FIC decreased significantly (P <0.05 or 0.01). There was no significant difference between group FNB and group FIC.Conclusion Preemptive anal-gesia regimens through both femoral nerve block and fascia iliaca compartment block during epidural anesthesia can reduce the fentanyl consumption,as well as decrease the incidence of cardiovascular e-vents and hypoxemia.

Objective To investigate the effects of angelica solution on chronic hypoxic pulmonary hypertension in rats.Methods Thirty SD rats were randomized into normoxic group,hypoxic group and angelica solution-protected group.The model of rat chronic hypoxic pulmonary hypertension was made by method of isobaric hypoxia.Angelica solution were injected before hypoxia,while the other two groups were injected normal saline.After 28d of hypoxia,pulmonary artery pressure were measured.Expressions of proliferating cell nuclear antigen (PCNA) and inducible nitric oxide synthase (iNOS) in pulmonary artery were detected by immunohistochemical staining.The index of wall thickness of rat pulmonary arteriole-percentage of the wall area in the total vascular area(wA%) were measured by a computerized image analyzer.Results The mean pulmonary artery pressure (mPAP) of normoxic group,hypoxic group and angelica solution-protected group were10.50±1.90,35.36±9.11,18.32±2.30 (mm Hg);wA% of the three groups were 52.71±5.16,82.38±8.43,64.58±9.54 (%),mPAP and wA% were significantly higher in the hypoxic group than those in the normoxic group (P<0.01) and angelica solution-protected group (P<0.01).PCNA expression of normoxic group,hypoxic group and angelica solution-protected group were 3.15±1.10,24.50±5.72,12.67±3.46 (%).The PCNA expression in the pulmonary artery was significantly higher in the hypoxic group than those in the normoxic group (P<0.01) and in the angelica solution-protected group (P<0.01).iNOS expression of normoxic group,hypoxic group and angelica solution-protected group were 2.13±1.01,17.33±3.53,37.50±7.04 (%).iNOS expression in the pulmonary artery was higher in the hypoxic group than those in normoxic group (P<0.01),and angelica significantly increased iNOS expression in comparison with the normoxic and hypoxic groups (P<0.01).Conclusion Angelica solution alleviates chronically hypoxia induced pulmonary hypertension in rats by inhibiting the espression of PCNA in pulmonary artery and up-regulating the expression of iNOS.

Objective To study hepatic blood flow exclusion for the resection of liver tumors involving hepatic hilar region. Methods The clinical data of 16 cases of liver tumors involving hepatic hilar region from January 2005 to March 2008 were retrospectively analyzed. Liver tumors were resected by the technique combining hepatic portal control ( Pringle's maneuver) and normothermie total hepatic vascular exclusion (NHVE). The relation of liver tumors to major vessels, episodes and durations of hepatic blood flow exclusion, intraoperative blood loss and blood transfusion, postoperative complications were analyzed. Results The technique combining Pringle's maneuver and NHVE was used in 16 cases. The mean episodes and durations of Pringle's maneuver were (3.8±1.6) min and (46.6±28.8) min, respectively. The mean episodes and durations of NHVE were (1.6±0.4) min and (23.5±8.2) min, respectively. The mean amount of intraoperativ blood loss was (1250±320) ml, blood transfusion (860±245) ml. Major hepatic vessel injuried were repaired intraoperatively including inferior vena cave in 4 cases, main hepatic veins in 2 cases and portal veins in 2 cases. The serum alanine transaminase(ALT) and bilirubin raised in different degrees after operation, and recovered gradually to normal level. There was no postoperative mortality and serious postoperative complications. Conclusions Alternative use of hepatic blood flow exclusion combining Pringle maneuver and NHVE reduces the time of total hepatic vascular exclusion, improves safety for resection of liver tumors involving hepatic hilar region.

Adolescent ; Cardiac Catheterization ; methods ; Child, Preschool ; Echocardiography, Transesophageal ; methods ; Female ; Heart Septal Defects, Atrial ; diagnostic imaging ; therapy ; Humans ; Treatment Outcome

In this paper is advanced a new type of collimator-dual sieve-mesh collimator.Its principle is to use scanned electronic beam to attack 400 matrix-arranged wolfram targets of the square holes on the upper side of the main collimator and created 400 small X-ray fields sized by 10mm×10mm.These X-ray fields will leave on its center 400 smaller X-ray fields sized by 5mm×5mm after being further collimated by a sub-collimator. What's more,16 different groups of such X-ray fields can be left on the center of the same field by controlling the all-round movement of the main collimator and sub-collimator in proper order and by scanning it round by round and mesh by mesh with electronic beams.It is these ting fields groups that make up various treatment fields with different energy (Dosage).This type of collimator can replace and simplify all other present collimators on accelerators and conformal-intensity modulation radiotherapy equipments. It has advantage of reducing the costs of radio-therapy equipment and making conformal and intensity modulation radiotherapy easier to perforn.

This study was purposed to explore the anti-leukemia effect of bacillus calmette-guerin vaccine (BCG) on the human myeloid leukemia cell xenograft models. An animal model was established by inoculating the human myeloid leukemia HL-60 cells into the BALB/c (8 - 10 weeks of age) nude mice. The mice were randomly divided into two groups: control group and experimental group. Nude mice in control group were injected with physiological saline, while those of experimental group were given BCG and inactivated BCG respectively. The tumor growth was assayed by using caliper. The survival time of nude mice was determined. Necrotic extent and morphological changes of tumor were observed and examined by HE staining and immunohistochemical method. The results indicated that on 5th-7th days after tumor inoculated, 2 - 3 mm tumor mass could be observed. The tumor volume increased over the time. HE staining of tumor tissues showed that there were different degrees of tumor necrosis in BCG group and inactivated BCG group. Immunohistochemistry results demonstrated that CD20 positive cells were obviously observed in the necrotic area of BCG group, compared with the control group and inactivated BCG group. It is concluded that human myeloid leukemia HL-60 cells have been successfully transplanted in nude mice, and the systemic metastasis occurs along with the prolongation of time. BCG inoculation can delay the tumor growth and prolong the survival time of nude mice with leukemia, suggesting that BCG has an antitumor effect.
Animals ; BCG Vaccine ; therapeutic use ; HL-60 Cells ; Humans ; Leukemia, Myeloid ; therapy ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Xenograft Model Antitumor Assays

Objective To assess the association of synovial cyclic citrullinated peptide(CCP)expression with T helper 17(Th17) cells/Regulatory T cells (Treg) imbalance,the histological and clinical features of synovitis in rheumatoid arthritis (RA).Methods CCP expression in synovial specimens from 39 patients with RA and 35 controls was detected by immunohistochemistry assay(IH) using 6×His tagged anti-CCP single chain fragment V (ScFv) antibodies,which were generated by pHEN2 phagemid recombinant antibodies display system.The frequencies of Th17/Treg cells in the peripheral blood mononuclear cells (PBMCs) were determined by flow cytometry (FCM).Th17/Treg cells associated cytokines were analyzed by enzyme-linked immunosorbent assay (ELISA).The histological scores and clinical features of synovitis were included in the study.Chi-square test and ANOVA were used for statistical analysis.Results ① The prevalences of synovial C CP expression were significantly different between RA group and the control(76.9％ and 11.4％ respectively,X2=31.9,P＜0.01).② The frequencies of Th17 cells,Th17/Treg ratio,Th17 cells associated cytokines as IL-6,IL-17a,IL-23,TNF-α,and the Treg cells associated cytokines TGF-31,the serum and synovial fluid anti-CCP antibodies in the RA patients with synovial CCP positive expression were significantly higher in RA patients with CCP positive than those with CCP negative.Disease activity score DAS28 index and histological features quantified variations of the synovial biopsy specimens (synoviocyte hyperplasia,focal aggregates of lymphocytes,and diffuse infiltrat(e)s of lymphocytes) in RA were higher in synovial CCP positive expression patients than in the negative.Conclusion Synovial CCP expression is strongly associated with the Th17/Treg imbalance and synovitis,which may play a crucial role in the pathogenesis of RA.