Objective To explore the effect of hydrocolloid dressing on nasal continuous positive airway pressure(N-CPAP)?Methods Five hundred newborns in our hospital from January 2011 to December 2012 undergoing N-CPAP were randomly divided equally into the control group and the observation group? In the former,rhinobyon was used but it was loosen every 1 to 2 hours so that the local skin was kneadvation? In the observetion group,the hand-cut hydrocolloid dressing was used to prevent complications? The two groups were compared in terms of the incidence of skin complications and the satisfaction degree from their families? Result During N-CPAP,the observation group was significantly better in the incidence of skin complications and the satisfaction degree than the control group(all P < 0?05)? Conclusion Hydrocolloid dressing during N-CPAP has better efficacy in reducing the complication of the perirhinal skin?

Pathological myopia can induce choroidal neovascularization (PM-CNV).The potential risk factors include ageing,long axial length of the eyeball,thinning of subfoveal choroidal thickness,fundus atrophy spot and lacquer crack.These factors may induce atrophy of retinal pigment epithelial cells (RPE) and hypoxia,resulting in vascular endothelial growth factors (VEGF) secretion by outer retina.The lesion type,location and activity of PM-CNV can be determined by fundus fluorescein angiography.The features of PM-CNV on optical coherence tomography include strong reflective area close to RPE with very small amount of subretinal fluid (active stage),surface strong reflection with signal attenuation area (scar stage) and flat lesion and chorioretinal atrophy (atrophy stage).Photodynamic therapy and intravitreal injection of anti-VEGF drugs are major treatments for PM-CNV,the latter is more commonly used now.However,more large randomized controlled studies are required to explore the treatment regimen (such as frequency,indications for repeated or termination of treatment) and the efficacy factors further.

The study aims to evaluate the bioequivalence of valsartan hydrochlorothiazide tablets, and to investigate the potential cause of bioinequivalence. This was a single-center study with an open, randomized double-way crossover design. Test and reference preparations containing 160 mg of valsartan and 25 mg of hydrochlorothiazide were given to 36 healthy male volunteers. Plasma concentrations of valsartan and hydrochlorothiazide were determined simultaneously by LC-MS/MS. The pharmacokinetic parameters and relative bioavailability were calculated, while the bioequivalence between test and reference preparations were evaluated. The dissolution profiles of test and reference preparations in four different mediums were determined via dissolution test and HPLC. The similarity was investigated according to the similarity factors (f2). The F(o-t) and F(0-infinity) were (139.4 +/- 65.2)% and (137.5 +/- 61.2)% for valsartan of test preparations. It led to get the conclusion that test and reference preparations were not bioequivalent for valsartan. A significant difference was observed between test and reference tablets in the valsartan dissolution test of pH 1.2 hydrochloric acid solution. The key factor of the bioinequivalence might be that dissolution of valsartan in acid medium has marked difference between two preparations.

To study the metabolite excretion of theophylline, a rapid and specific method by liquid chromatography with heated electrospray ionization tandem mass spectrometry (LC-HESI/MS/MS) method for simultaneous determination of theophylline, 1, 3-dimethyluric acid (1,3-DMU), 3-methylxanthine (3-MX) and 1-methyluric acid (1-MU) in human urine was developed using theophylline-d6 and 5-fluorouracil as internal standards. Selected reaction monitoring (SRM) with heated electrospray ionization (HESI) was used in the negative mode for mass spectrometric detection. After diluted with methanol and centrifuged, the analytes and ISs were separated on a XDB-Phenyl (150 mm x 4.6 mm, 5 microm) column with a mixture of water-methanol-formic acid (30 : 70 : 0.15) as mobile phase at a flow rate of 0.6 mL x min(-1). The linear calibration curves for theophylline, 1, 3-DMU, 3-MX and 1-MU were obtained in the concentration range of 1.0-250 microg x mL(-1), separately. The method herein described is effective and convenient, and can be used for determination of theophylline and its three metabolites. The results showed that urinary excretion ratio of theophylline, 1,3-DMU, 3-MX and 1-MU is approximately 1 : 3 : 1 : 2 in Chinese subjects, which is similar to the reported excretion pattern in Caucasian.

OBJECTIVE:To study the pharmacokinetics and the bioequivalence of mycophenolate mofetil(MMF)dry suspension versus its imported tablets counterpart in healthy volunteers.METHODS:In a randomized two period crossover study,each of the 20 healthy male volunteers received a single oral dose of 0.75 mg dry suspension or imported tablet of MMF.The plasma concentration of mycophenolic acid(MPA),which is the active metabolite of MMF,were determined by HPLC.The pharmacokinetics of MPA were estimated by the non-compartment model and the bioequivalence of the two formulations of MMF were evaluated by ANOVA and two one-sided-test.RESULTS:The main pharmacokinetic parameters of MMF dry suspension versus imported MMF tablet were as follows:t1/2? were(16.80?4.10)and(16.77?4.50)h;tmax were(0.4?0.1)and(0.7?0.4)h;Cmax were(19.29?6.78)and(18.22?7.19)?g?mL-1;AUC0～72 were(39.22?10.43)and(39.38?10.46)?g?h?mL-1,and AUC0～∞ were(40.58?10.49)and(41.00?10.88)?g?h ?mL-1 respectively.The relative bioavailability of the test preparation(dry suspension of MMF)was(100.9?10.6)%.CONCLUSION:The two formulations are bioequivalent in healthy volunteers.

Objective To investigate the incidence of surgical site infection(SSI)following clean incision breast surgery under non-local anesthesia,and evaluate risk factors for SSI.Methods Clinical data of 3 327 patients who underwent clean incision breast surgery under non-local anesthesia in 22 hospitals in Fujian Province were surveyed retrospectively,SSI and risk factors were analyzed.Results Among 3 327 patients,1 502(45.19%)were with malignant tumors,the average dura-tion of surgery were (101.18 ±8.04)minutes;a total of 24 cases of SSI occurred,incidence of SSI was 0.72%;253 (7.60%)patients received pre-operative antimicrobial prophylaxis,62.66% used antimicrobial agents within 0.5-2 hours before surgery.The main pathogenic bacteria was Staphylococcus aureus .Univariate and logistic regression analysis re-vealed that malignant tumor,diabetes mellitus,and use of immunosuppressants were all risk factors for SSI (all P <0.05). Conclusion SSI following clean incision breast surgery under non-local anesthesia is well controlled,risk factors for SSI should be evaluated before operation,comprehensive preventive measures should be taken to reduce the incidence of SSI.

Objective:To study the diagnosis value of Transcranial Doppler ultrasound for intracranial artery stenosis in patients with cerebral infarction.Methods:A total of 140 patients with acute cerebral infarction,transient ischemic attack and posterior circulation ischemic attack in Department of Neurology,Xinjiang cardiovascular and cerebrovascular disease hospital from October 2014 to October 2016 were selected as research object,CT angiography (CTA) and TCD detection were performed in all patients.Used CTA examination results as the gold standard,the detection results of intracranial artery stenosis in two groups were compared,the diagnostic value of TCD and the diagnostic results of TCD to the degree of bilateral middle cerebral artery (MCA) stenosis were analyzed.Results:CTA diagnosis showed that 140 patients had a total of 105 patients with intracranial artery stenosis,in the anterior and posterior circulation vessel of 1155 intracranial segments,CTA detection showed that 249 vessels were narrow,TCD detection showed that 236 vessels were narrow.Com-pared with CTA,TCD was better in the diagnosis of patients (Kappa value＞0.75).The diagnostic sensitivity and positive predictive value of TCD for MCA were the highest,which were 91.26％ and 93.07％,the consistency was the best (Kappa value =0.917).CTA detection showed that 210 MCA vessels had 103 stenoses,mild stenosis 17,moderate stenosis 41,severe stenosis 45,TCD detection showed that the stenosis was 101,mild stenosis 16,moderate stenosis 40,severe stenosis 45.The Kappa test showed that the diagnostic results of TCD to the degree ofMCA stenosis was better consistency compared with CTA (Kappa value=0.884.Conclusion:TCD has a high diagnostic value for cerebral artery stenosis in patients with cerebral infarction,and it is consistent with the diagnosis of CTA.

Objective To establish the quality standard of Zhilou Lotion. Methods TLC was adopted to identify Radix et Rhizoma Rhei and Cortex Phellodendri. HPLC was adopted to determine the content of chlorogenic acid in Zhilou Lotion. The chromatography column was Agilent Ecilipse XDB-C18 (4.6 mm× 250 mm, 5 μm), the mobile phase was acetonitrile-0.4% phosphoric acid solution (10∶90), the flow rate was 0.80 mL/min, the temperature of column was room temperature, and the detection wavelength was 327 nm. Results The method for identification had good specificity and repeatability. There was no interference in blank control. Chlorogenic acid had good linearity in the range of 2.442-122.1 μg (r=1.000 0). The average recovery rate was 100.30% and RSD was 1.05% (n=9). Conclusion The qualitative and quantitative method is simple, specific, accurate and reliable, and can be used for quality control of Zhilou Lotion.

Objective To observe the effect of hot compress with medicinal salt pack in preventing PICC-associated mechanical phlebitis.Method Totally 200 inpatients undergone PICC intubation were randomized into a treatment group and a control group, 100 cases in each group. After PICC intubation, the treatment group was intervened by hot compress with medicinal salt pack, while the control group was by hot compress with warm wet towel. The occurrence of mechanical phlebitis was observed at different time points and compared between the two groups. Result The occurrence rate of mechanical phlebitis was 9.0% in the treatment group versus 26.0% in the control group, and the difference was statistically significant (P<0.05). In the treatment group, the occurrence rate of mechanical phlebitis was respectively 6.0% and 3.0% when treatment≤72 h and>72 h, versus 16.0% and 10.0% in the control group, and the differences were statistically significant (P<0.05). Conclusion Hot compress with medicinal salt pack can effectively reduce the occurrence of PICC-associated mechanical phlebitis.

Objective To investigate the reasons and nursing countermeasures of the discomfort of peripher-ally inserted central catheter(PICC)intubation patients in the process of placing tube.Methods 290 patients with PICC who were treated with PICC for the first time were summarized.Results 290 patients with PICC in catheter had not comfortable experience.The main reason of causing discomfort was psychological factors,accounted for 90.0%, catheter when the cold experience leads to the discomfort of 82.8%,catheter environmental factors accounted for 6 3 .8 % ,pain caused by discomfort accounted for 15.5% ,puncture posture factors leading to 13.1% .Conclusion The causes of discomfort in the process of PICC is more,strengthen preoperative health education and the operation of effective communication,to create a relaxed comfortable environment to help patients take comfortable posture,improve a catheter success rate,preventing catheter during cold and other measures can improve the patients'comfort.