The development of digestive endoscopy has played a very important role in promoting diagnosis and treatment for digestive system diseases in children. Electronic endoscopy is safe and simple for check and treatment. If applied to chronic diarrhea it will extensively improve the diagnosis and therapy efficacy.

Enteral nutrition (EN) therapy is one of the most important treatments of Crohn's disease (CD),especially in European countries,EN is considered as the first-line of treatment for pediatric CD.EN can improve the poor nutrition condition,induction and maintenance remission,the risk of this treatment is very low.But in our country the application of EN is still limited,deepening the understanding and obtained clinical guidelines are very important.

With the development of modem clinical medical engineering,especially some large medical equipment,medical engineering section needs more talents in management and maintenance profession.Aiming at problems in the section construction,some viewpoints and suggestions are put forward.It is expected that the leadership could attach importance to medical engineering section,make good use of the talents and lay solid foundation for the development of hospitals.

The ultrastructural characteristics of the mouse mammary adenocarcinoma cell line (MA782/5S-8102) have been studied by transmission electron microscope. The results show that the cells were irregular in the shape, with abundant microvilli on cell surface. The nucleus was abnormal in shape with the nuclear membrane sunk or swollen, the nucleus/cytoplasmic ratio (N/C) was high. There were many free ribosomes, abundant mitochondrias, dilated rough endoplasmic reticulum in the cytoplasm. Golgi apparatus, lysosomes and lipid droplets were present. Moreover, many cytoplasmic type-A particles and a few immatural type-B particles at the surface of the cell were observed.

Objective To investigate the effect of histone deacetylase inhibitor LBH589 on proliferation,apoptosis and drug resistance of chemoresistant acute myeloid leukemia cells HL60/ADM.Methods HL60/ADM cells were treated with LBH589.Proliferation,apoptosis and adriamycin IC50 were evaluated by MTT assay and AnnexinV-FITC/PI stain.The change in MRP1 expression and intercellular adriamycin accumulatiom were analyzed by flow cytometry.Results Effective proliferative inhibition and apoptotic induction in HL60/ADM cells were observed after treatment with 10-80 nmol/L LBH589 with maximal effect detected after treatment with 70 nmol/L LBH589 for 60 hours.However,inhibition ratio remain unchanged with the further increase of drug dose and incubation time (P ＞ 0.05).Downregulation of MRP1 [(93.90±4.20) ％ vs (76.19±6.53) ％],upregulation of adriamycin accumulation [(8.53±0.68) ％ vs (25.67±1.34) ％] and decrease in adriamycin IC50 [(6.833±0.319) μg/ml vs (1.382±0.104) μg/ml] were induced by the treatment with 20 nmol/L LBH589 (P ＜ 0.01),whose reversal fold was 4.9.The expression of acetylated histone 3 after treatment with LBH589 was higher than that before treatment (P ＜ 0.01).However,relative p-Akt levels after treatment for 24 h and 48 h were 1.07±0.09 and 0.59±0.01,respectively,which were lower than that before treatment (2.03±0.12) (P ＜ 0.01).Meanwhile,expression levels of p53 were 0.57±0.04 and 1.31±0.09,respectively,which were higher than that before treatment (0.21 ±0.02) (P ＜ 0.01).Conclusion Treatment with LBH589 has the capability of inhibiting proliferation and inducing apoptosis,as well as increasing intercellular adriamycin accumulation and sensitivity through downregulation of MRP1 expression and inhibition of PI3K-Akt signaling pathway in HL60/ADM cells.

Objective To explore the clinical value of CEUS guided biopsy of lymphoma in anterior mediastinum.Methods The data of 36 patients with lymphoma of anterior mediastinum underwent biopsy guided by CEUS and 36 patients by conventional ultrasound retrospectively.The successful rate of biopsy and rate of complication occurence were compared between the CEUS group and conventional ultrasound group.Results The successful rate of biopsy in CEUS group was 100％ (36/36),including 26 non-Hodgkin's lymphoma (NHL),10 Hodgkin's lymphoma (HL).The total times of puncture were 60 in 36 patients.The rate of complication occurrence was 11.11 ％ (4/36).The successful rate in conventional ultrasound group was 88.89％ (32/36),including 22 NHL,14 HL.The times of puncture were 91 in 36 patients.The rate of complication occurrence was 41.67％ (15/36).There were significant differences in successful rate and the rate of complication occurrence between two groups (x2 =4.235,8.651,P=0.040,0.003).Conclusion CEUS can reflect the microcirculation of lymphomas in anterior mediastinum,and can guide targeted biopsy.It can improve the successful rate of biopsy and reduce the complications.

Objective To explore the optimization of intubations for severe brain injury patients in ICU. Methods Seventy-six severe brain injury patients were divided into research group and traditional group through the envelop method, with 38 patients in each group. Patients in research group was induced by dexmedetomidine, while patients in traditional group was induced by midazolam or propofol. Throat and intratrachea surface anesthesia was taken with 3 ml of 1%lidocaine on two groups before intubation, and they were intubated through direct laryngoscope. Patients were connected with breathing machines after intubation, and the arterial carbondioxide partial pressure was maintained at 30-35 mmHg (1 mmHg=0.133 kPa). Intubations time, one-time success rate, cardiovascular reaction index, myocardial damage and heart failure biomarkers, adverse reaction, patients comfort and intubationists satisfaction of the two groups were compared. Results The intubation time on research group was significantly shorter than that on traditional group [(27.1 ± 14.2) s vs. (42.2 ± 18.7) s], and there was statistical significance (P<0.01). The one-time success rates in two groups was not statistically significant (P>0.05). The heart rates and mean arterial pressure (MAP) at pre-intubation, post-intubation, 5 min after intubation and 10 min after intubation in research group were significantly lower than those in traditional group:heart rate:(77.8 ± 8.5) bpm vs. (85.1 ± 7.6) bpm, (85.3 ± 9.1) bpm vs. (106.4 ± 12.5) bpm, (84.4 ± 10.4) bpm vs. (96.4 ± 11.9) bpm, (80.5 ± 12.1) bpm vs. (89.0 ± 10.5) bpm;MAP: (82.6 ± 10.1) mmHg (1 mmHg = 0.133 kPa) vs. (93.2 ± 14.3) mmHg, (88.3 ± 13.2) mmHg vs. (113.7 ± 15.1) mmHg, (85.4 ± 14.0) mmHg vs. (101.3 ± 9.9) mmHg, (83.7 ± 10.7) mmHg vs. (90.3 ± 13.4) mmHg, and there were statistical significances (P<0.05). There was no statistical significance of SpO2 between groups at every time point (P>0.05). For 6 and 12 h after intubation, creatine kinase isoenzyme MB (CK-MB), cardiac troponin T (cTnT) and brain natriuretic peptide (BNP) levels in research group were significantly lower than those in traditional group:CK-MB:(30.5 ± 7.2) U/L vs. (35.2 ± 10.1) U/L, (25.7 ± 5.7) U/L vs. (27.7 ± 6.5) U/L;cTnT:(0.6 ± 0.2) μg/L vs. (0.8 ± 0.1) μg/L, (0.5 ± 0.2) μg/L vs. (0.6 ± 0.2) μg/L;BNP:(152.6 ± 13.7) pg/L vs. (189.4 ± 19.3) pg/L, (89.7 ± 27.5) pg/L vs. (111.8 ± 20.4) pg/L, and there were statistical significances (P<0.05). There were no significant adverse reactions in two groups after topical anesthesia. The comfort and intubationists satisfaction scores in research group were significantly higher than those in traditional group: (2.5 ± 0.4) scores vs. (1.8 ± 0.5) scores and (8.8 ± 1.1) scores vs. (7.1 ± 0.9) scores, and there were statistical significance (P<0.01). Conclusions Combining dexmedetomidine induction with topical anesthesia to intubate is safe and effective, which is the optimization of tracheal intubations to severe brain injury patients.

Objective To retrospectively analyze the effect of abdominal acupuncture for the casino workers with sleep disorder in chronic fatigue syndrome and analyze the correlation between them.Method 65 patients were all from the Acupuncture Department of Health Center of the Black Sand, Macao Health Bureau, 2011 October to 2013 January, who were diagnosed with sleep disorder in chronic fatigue syndrome and in accordance with the inclusion criteria. They were received abdominal acupuncture treatment for 4 weeks. Pittsburgh sleep quality index(PSQI) and Fatigue Assessment Instrument(FAI)were adopted to evaluate the effect before treatment 、after treatment and one month follow-up. Multiple regression analysis model was used to analyze the correlation of each factor of FAI and PSQI. Results Compared with before treatment (13.78± 3.23), the total score of PSQI after treatment(8.66 ± 4.26)and follow-up(8.26 ± 4.66) were significant decreased(P<0.05);the score of 6 dimensions(sleep quality, Time to fall asleep, sleep time, sleep efficiency, sleep disorders daytime function) after treatment and follow-up were significant decreased(P<0.05),compared with those before treatment;the FAI score after treatment (92.60±14.64) and follow-up(90.75±14.75) were significant lower(P<0.05)than those before treatment (147.55±7.03) .Multiple regression analysis showed that 4 dimensions of PSQI (sleep quality, sleep time, sleep disorders, daytime function)had close relationship with FAI score(r=0.373~0.702, P<0.05). Conclusion Abdominal acupuncture can improve the casino workers' sleep disorder in chronic fatigue syndrome and is worth of further study.

Objective To assess nutritional risks in children with allergic proctocolitis induced by cow milk protein,and to observe the effects of the feeding strategies for them with different interventions in feeding,and then to identify the best time and the best way to modify feeding strategies according to different individual.Methods The effectiveness of different feeding interventions was retrospectively analyzed after 2 weeks in 171 cases with allergic proctocolitis induced by cow milk protein in Hunan Children's Hospital during the period of Jan.2012 to Jul.2013.Thirty-two cases received breast feeding (18.7％) and 139 cases received non-breast feeding (81.3％).Intervention methods:32cases with breast feeding received the same feeding method;among 139 babies with non-breast feeding group,36 were plus free amino acid (AAF) (21.1％),and 103 were plus the extensively hydrolyzed formula (eHF).The intervention formula changes were observed in 8,12 and 24 weeks,respectively,and nutritional risks in 0,3,6 months were assessed,respectively.Results There were 171 patients totally,male to female ratio was 1.5 to 1.0,and the average age was (4.1 ± 1.3) months.After 2 weeks,147 cases were notably effective,accounting for 86％,and in the breast feeding group 79.2％ of the patients were notably effective,and there was no significance compared with the AAF group and eHF group (P ＞ 0.05).The intervention formulation changes during the following 6 months were as follows:in 8 weeks,30 cases in the breast feeding group breastfeeding continued,2 cases turned to eHF feeding for the lack of breast milk,21 cases were fed with AAF (12.3％),85 cases with eHF (49.7％),and 35 cases with moderately hydrolyzed formula (20.5％) ;in 12 weeks:23 cases had breast feeding (13.5％),16 cases were fed with free amino acid formula powder (9.4％),56 cases with extensively hydrolyzed formula (32.7％),and 76 cases with moderately hydrolyzed formula (44.4％) ;in 24 weeks:21 cases (12.3％) had breast feeding,7 cases were fed with AAF(4.1％),13 cases with moderately hydrolyzed formula(7.6％),and 130 cases with normal formula(76.0％).The mean levels of the nutritional risks were assessed according to STAMP in 0,3,6 months respectively:breast feeding group [(1.69 ± 0.78) scores,(1.50 ± 0.88) scores,(1.53 ± 0.67) scores,P ＞ 0.05] ; AAF group [(1.72 ± 0.78) scores,(1.53 ± 0.88) scores,(1.53 ± 0.65) scores,P ＞ 0.05] ; eHF group [(1.80 ± 0.69) scores,(1.68 ± 0.68) scores,(1.66 ± 0.65) scores,P ＞ 0.05].Conclusions The nutrition risk levels in children with milk protein allergic proctocolitis are low,and different feeding interventions according to tolerance had no impact on the nutritional status ; Breast feeding could effectively avoid cow milk allergy,and symptoms of the children with allergic proctocolitis would be relieved after 2-week intervention,and more than half of children could gain part of immune tolerance after intervention for 3 months or more,so for the children with allergic proctocolitis induced by cow milk protein,routine formula feeding should be stopped after 3 months,and individualized feeding intervention can be carried out according to immune tolerance to relieve the financial burden.

Objective To explore the value of ultrasound imaging in complications associated with venous catheterization.Methods Patients (n =853) underwent ultrasound imaging examination after venous catheterization.Ultrasonography manifestations of venous catheterization complications and clinical curative effect were analyzed and summarized.Results Phlebitis,thrombus and mechanical complications were found by ultrasound imaging examination.Pneumothorax,hemothorax,arterial puncture and hematoma were among the main mechanical complications.Among the 853 patients,85 cases (9.96％) were found to have complications by ultrasound examination,with 35 cases (4.10％) of phlebitis,26 cases (3.05％) of catheter-related thrombus and 24 cases (2.81％) of mechanical complications.Conclusions In summary,a variety of venous catheterization complications can be diagnosed using ultrasound imaging non-invasively,effectively and efficiently.Real-time ultrasound imaging examination can dynamically monitor the develop ment and evolution of venous catheterization complications and effectively evaluate outcomes.