2.The effects of the neotype hand-arm sling on shoulder subluxation and transferring movement in hemiplegic stroke patients
Sheng WANG ; Zhaohua GU ; Chen GONG ; Yu LUO ; Tong WANG
Chinese Journal of Physical Medicine and Rehabilitation 2016;38(2):122-125
Objective To explore the effects of the neotype hand-arm sling on shoulder subluxation and transferring movement in hemiplegic stroke patients.Methods Thirty hemiplegic stroke survivors with shoulder subluxation and poor elbow flexor muscle tone (<2 on the Modified Ashworth Scale).were selected and randomly divided into three groups.Group 1 was trained in static upright standing,plus 10 min of sit-to-stand training and 20 min of walking training with no support for the hemiplegic,subluxed shoulder.Group 2 did the same training using a bagtype shoulder sling,and group 3 used the neotype hand-arm sling.Index finger palpation was used to evaluate the degree of shoulder subluxation,and the Five Times Sit-to-Stand (FTSST) and Timed Up-and-Go (TUG) times for the three groups were compared.Results In the static standing training,both the bag-type sling and the neotype hand-arm sling could effectively reduce shoulder subluxation.However,after 10 min of sit-to-stand training the neotype hand-arm sling was found to be significantly superior to the bag-type shoulder sling in improving shoulder subluxation,with the latter having no effect on shoulder subluxation.In the 20 rin of walking training,the neotype hand-arm sling provided significantly more effective support than the bag-type shoulder sling,although both could support the shoulders.Those using the neotype sling had shorter FTSST times,though there were no significant differences in the average TUG times.Conclusions The neotype slings can more effectively counter shoulder subluxation in upright stance,especially during sit-to-stand maneuvers and walking.It might have positive effects on transferring ability.
3.Clinical significance of dynamic monitoring of plasma Pro-B-type Natriuretic Peptide in the evaluation of prognostic value and myocardial dysfunction in patients with septic shock
Lijuan LI ; Wei CHEN ; Xuyun GU ; Bo SHENG ; Lei ZHAO
Clinical Medicine of China 2012;28(12):1268-1272
Objective To assess the effects of dynamic monitoring of plasma Pro-B-type Natriuretic Peptide(Pro-BNP) in the evaluation of prognostic value and myocardial dysfunction in patients with septic shock.Methods The levels of plasma Pro-BNP were tested in 102 patients with septic shock on the 1,3,and 5 days.Data on ICU mortality and 28-day mortality were collected.The patients were divided into non-dysfunction group (CI<3.0) and cardiac dysfunction group (CI≥3.0) according to levels of hemodynamic variables ( CI level).The prognostic value of plasma Pro-BNP was analyzed.Results Plasma Pro-BNP levels on the 1,3 and 5 days in 28-day survivors have a significant declining trend [( 1649.0 ± 257.5 ) ng/L,( 1867.6 ± 291.7 ) ng/L vs.(1229.9 ± 194.5) ng/L),while plasma Pro-BNP levels in non-survivors have an increasing trend [(4128.8 ± 1051.1),( 5315.9 ± 925.4 ) vs.( 6899.9 ± 1327.9 ) ng/L].There is statistical significance of plasma Pro-BNP levels at day 1,3 and 5 for the two groups ( t=3.057,5.083,and 6.290 respectively,P<0.01 ).The 28-day mortality and Plasma Pro-BNP levels in cardiac dysfunction group were higher than of non-dysfunction group ( 28-day mortality:62.1% vs.20.0%;Pro-BNP1:( 1592.8 ± 362.2 )ng/L vs.( 4556.6 ±732.7 ) ng/L;Pro-BNP3:( 2933.6 ± 421.7 ) vs.( 5768.5 ± 793.7 ) ng/L,Pro-BNP5:( 3014.5 ± 587.5 ) ng/L vs.(8873.9 ± 1670.1) ng/L ( x2=20.635,P=0.000,t=3.626,3.154,3.310,P<0.01].Pro-BNP level greater than 3053 ng/L on the 5-day was an independent prognostic indicator of 28-day mortality ( sensitivity:88.4%;specificity:91.5 % ).Pro-BNP level greater than 2378 ng/L on the 5-day was an independent prognostic indicator of hospital mortality ( sensitivity:84.9%;specificity:91.8% ).In multivariate logistic regression analyses,Pro-BNP level and APACHE score were independent predictors of 28-day mortality and hospital mortality.Conclusion Plasma Pro-BNP level shows obvious significance in evaluation of sepsis-induced myocardial depression severity in patients with septic shock.Pro-BNP level in ICU at day 5 after inclusion is an independent prognostic marker of mortality in septic shock.
4.Fluorescent antibody labeling for experimental choroidal neovascularization in mice
Li-ping, GU ; Li, CHEN ; Hui, CHEN ; Jing-sheng, TUO ; Xiao-wei, GAO
Chinese Journal of Experimental Ophthalmology 2011;29(7):619-624
Background Choroidal neovascularization (CNV) is a main cause of visual impairment in many retinal diseases.To create an ideal CNV animal model is very important for the experimental and clinical study of CNV.The assessment method of repeatable and reliable for CNV model is still seldom.Objective This experiment was to explore the label value of fluorescent antibody for visualizing and quantifying the morphologic changes associated with laser-induced CNV.Methods Laser-induced CNV models were created in 30 eyes of 15 male SPF C57BL/6J mice by Krypton red laser irradiating fundus 2 spots around the optical disc with the wavelength 647.1nm,power 260 mW,spot diameter 50μm and exposure time 0.05 seconds.The CNV was evaluated at 5 minutes,4,7,14 and 28 days after laser injury by using fundus photography and fundus fluorescein angiography (FFA),and the successful models were identified as the rupture of Bruch's membrane.The mice were then immediately sacrificed and the eyeballs were enucleated to prepare the choroidal flatmounts.The posterior eye cups were fluorescently labeled with markers of cell nuclei (DAPI,4',6'-diamino-2-phenylindole),endothelial cells (isolectin-B4),and filamentous actin (phalloidin).The CNV areas from specimens were measured by Image pro plus 6.0.Two eyes from one matched mouse without receiving photocoagulation were used as the controlls.This study followed the Standard of Association for Research in Vision and Ophthalmology.Results No any CNV was seen in photocoagulated eyes in 5 minutes and 4 days after laser irradiation.The first sign of CNV appeared at 7 days following photocoagulation.The incidence of fluorescein leakage was 76.47% (26/34),81.81% (18/22),50.00% (5/10) at 7,14 and 28 days,respectively.The fluomicroscope examination showed that in unphotocoagulated areas,retinal pigment epithelial (RPE) cells were visualized with a uniform hexagonal array.Immediately after laser exposure,a circular area devoid of fluorescent labeling was observed,indicating disruption of the choroid-Bruch membrane-RPE complex.On the fourth day,cellular debris and fragmented nuclei were presented and an autofluorescent ring was visible at the site of Bruch's membrane disruption.The number of CNV vessels increased exponentially during the next 3 days.At 7 days,a well-defined isolectin-B4 labeled CNV network was exhibited and lasted for 28 days.The CNV areas were (7.99±0.42)×103μm2,(16.89±3.77)×103μm2,(14.37±4.02)×103μm2 at 7,14 and 48 days after photocoagulation respectively,showing a significant difference among these three groups (F=17.340,P=0.000),and the CNV area was significantly increased in the photocoagulating eyes in 14 days and 28 days compared with 7 days (q=16.46,q=15.54,P<0.01).Conclusion Fluorescent antibody labeling allows the well identification and measurement of laser-induced CNV lesions in mouse choroid/RPE flatmounts.This technique offers excellent morphologic detail and facilitates the study of critical early events in CNV.CNV complexes are labeled at an early stage,providing a more accurate preclinical evaluation of antiangiogenic molecule.
7.The association between plasma N-terminal pro-B-type natriuretic peptide and extravascular lung water index in patients with septic shock
Suozhu WANG ; Lijuan LI ; Lei ZHAO ; Bo SHENG ; Xuyun GU ; Wei CHEN
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2014;(1):58-62
Objective To study the dynamic change in plasma N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels and its correlation with extravascular lung water index (EVLWI) in patients with septic shock. Methods Sixty-two patients with septic shock admitted to Department of Critical Care Medicine of Beijing Shijitan Hospital were enrolled. The patients were divided into survival group(39 cases)and non-survivors group (23 cases)according to 28-day prognosis. Venous blood was collected after intensive care unit(ICU)admission. The changes in plasma NT-proBNP and hemodynamics indexes levels were analyzed to evaluate their predictive value for clinical outcomes. Results Acute physiology and chronic health evaluation Ⅱ(APACHEⅡ)score(23.2±2.5 vs. 28.1±2.6),sequential organ failure assessment(SOFA score:7.74±2.80 vs. 12.43±3.00)and hemodynamics indexes including EVLWI〔ml/kg:7.0(6.0,8.0)vs. 9.0(7.0,12.0)〕,blood lactate(mmol/L):3.60±2.30 vs. 10.40±2.70)and NT-proBNP〔ng/L:945.0(228.0,1 246.0)vs. 5 471.0(3 308.0,11 174.0)〕in survivors were significantly lower than those in non-survivors,and cardiac index〔CI(L?min-1?m-2):4.23±0.85 vs. 3.31±0.74〕, global ejection fraction(GEF:0.205±0.054 vs. 0.149±0.054)were significantly higher than those in non-survivors (P<0.05 or P<0.01). Correlation analysis showed a positive correlation was found between NT-proBNP and EVLWI (r=0.277,P=0.010),and negative correlations were found between NT-proBNP and CI(r=-0.367,P=0.001), GEF(r=-0.259,P=0.017). No correlation was found between NT-proBNP and GEDVI,SVRI. Receiver operating characteristic curve(ROC curve)analysis showed that the area under the ROC curve(AUC)for plasma NT-proBNP predicting the outcome of septic shock patients was 0.869±0.042,95% confidence interval(95%CI)was 0.786-0.952,with the maximum sum of sensitivity and specificity 1.695 to determine NT-proBNP predicting septic shock patient's death cut-off value was 2 071 ng/L,under this cut-off value,the sensitivity was 81.4% and specificity,88.1%. The maximum AUC for EVLWI predicting the outcome of patients with septic shock was 0.690,cut-off value was 7.5 mL/kg,under this cut-off value,the sensitivity was 69.8% and specificity,66.7%. Maximum AUC for CI predicting the outcome of patients with septic shock was 0.785,cut-off value was 3.48 L?min-1?m-2,under this cut-off value,the sensitivity was 69.8%and specificity,66.7%. Maximum AUC for GEF predicting the outcome of septic shock patients was 0.794,cut-off value 0.175,under this cut-off value,the sensitivity was 76.2% and specificity, 81.4%. Multivariate analyses showed CI and NT-proBNP levels were independent predictors of the prognosis〔CI:P=0.001,odds ratio(OR)=9.183,95%CI 2.362-35.694;NT-proBNP:P=0.024,OR=1.000,95%CI 0.999-1.000〕. Conclusion The plasma NT-proBNP level which is correlated significantly to EVLWI can evaluate the severity of septic shock and can predict the prognosis of such patients.
8.Value of inflammatory biomarkers in early diagnosis of bacteriemia patients infected with gramnegative bacteria
Wei CHEN ; Lei ZHAO ; Suozhu WANG ; Bo SHENG ; Jie ZHEN ; Xuyun GU
Chinese Journal of Emergency Medicine 2014;23(3):303-307
Objective To investigate the value of inflammatory biomarkers such as procalcitonin (PCT),C-reactive protein (CRP),and endotoxin in early diagnosis of bacteriemia patients infected with gram-negative bacteria.Methods A cohort of 79 bacteriemia patients infected with gram-negative bacteria admitted from February 2011 to May 2013 were enrolled for retrospective study.Collected data for analysis included gender,age,disease severity (APACHE Ⅱ score),bacterial isolates from blood culture and other general information.The inflammatory biomarkers such as white blood cell (WBC),neutrophils (NEU),Creactive protein (CRP),procalcitonin (PCT),and endotoxin were assayed within 6 hours after admission.SPSS version 16.0 software was used for statistical analysis.The test of normality was used for analysis of continuous variables,t-test for inter-group comparison and non-parametric statistics for non-normal distribution variables.The AUC of ROC was calculated for determining the sensitivity and specificity of biomarkers for diagnosis of bacteriemia.Results (1) Statistically positive correlations were found among serum PCT,CRP,and endotoxin levels (PCT/CRP =0.916,PCT/endotoxin =0.496,Endotoxin/CRP =0.387),and between those and APACHE Ⅱ score were (PCT/APACHE Ⅱ =0.505,Endotoxin/APACHE Ⅱ =0.467,CRP/APACHE Ⅱ =0.278),respectively,in bacteriemia patients infected with gram-negative bacteria.(2) The receiver operating characteristic (ROC) curve indicated that AUC PCT =0.715 (sen 64.6%,spe 80.7%),AUC CRP =0.666 (sen 67.7%,spe 78.6%),AUC endotoxin =0.771 (sen 78.8%,spe 81.8%) in gram-negative bacteria bloodstream infection patients.(3) The AUC PCT =0.865 (sen 86.2%,spe 77.5%),AUC CRP =0.733 (sen 72.4%,spe 75.0%),AUCendotoxin =0.618 (sen 70.7%,spe 67.5%) in bacteriemia patients infected with gram-negative bacteria in severe sepsis and septic shock group.Conclusions The plasma PCT,CRP,and endotoxin have early predictive value in bacteriemia patients infected with Gram-negative bacteria.In sepsis stage,the level of serum endotoxin has the most significant value for diagnosis.In severe sepsis and septic shock stages,the PCT is the most value for diagnosis of bacteriemia.All biomarkers are positively correlated with severity of the disease.
9.Effects of ICB orthopedic sole on balance and walking function in stroke survivors with hemiplegia
Zhaohua GU ; Sheng WANG ; Dianhuai MENG ; Chen GONG ; Xiang WANG ; Yu LUO ; Tong WANG
Chinese Journal of Physical Medicine and Rehabilitation 2015;37(8):597-599
Objective To observe the effects of ICB orthopedic sole combined with rehabilitation training on balance and walking function in stroke survivors.Methods Thirty hemiplegic stroke patients were recruited and divided into a study group (n =15) and a control group (n =15) by using a random number table.Both groups took exercises based on the principles of a motor relearning program and conducted core stability control training,and the study group additionally undertook hemiplegic lower extremity weight-bearing exercises and walking with ICB orthopedic sole used in daily living.The program was administered 20 min twice per day for 4 weeks.All patients were evaluated with Rest Calcaneus Standing Position (RCSP),Malleolar Position (MP),Forefoot Position (FP),Berg Balance Scale (BBS),l0 m Maximum Walking Speed (MWS) and walking section of Motor Assessment Scale (MAS)before and after the program.Results After 4 weeks of intervention,all the measurements except the FP in both groups improved significantly,and significant differences were observed between the two groups.After 4 weeks of training,the average RCSP (1.78 ± 0.32) ° and MP (13.33 ± 2.51)° were improved significantly compared to those of the control group [(2.58 ± 0.59) ° and (12.45 ± 3.31) °,respectively].Moreover,the average BBS,MAS and MWS improved significantly compared to the control group.Conclusions ICB orthopedic sole combined with rehabilitation training can improve the weight-bearing,balance and ambulation abilities of stroke survivors.
10.Analysis of correlation between inflammatory parameters and severity of sepsis caused by bacterial ;bloodstream infection in septic patients
Lei ZHAO ; Xuefeng ZANG ; Wei CHEN ; Bo SHENG ; Xuyun GU ; Jingshu ZHANG
Chinese Critical Care Medicine 2015;(6):448-453
Objective To discuss the differences of inflammatory parameters such as procalcitonin ( PCT ), C-reactive protein ( CRP ), endotoxin, white blood cell ( WBC ), neutrophil ratio ( Neut%) in blood of septic patients caused by bacterial bloodstream infection, and their correlation with the severity of disease. Methods 292 septic patients with positive blood culture were enrolled in Beijing Shijitan Hospital Affiliated to Capital Medical University from February 2012 to March 2015, and their gender, age, acute physiology and chronic health evaluation Ⅱ( APACHEⅡ) score, bacterial species and other general information were retrospectively collected. The differences in inflammatory parameters ( PCT, CRP, endotoxin, WBC, Neut%) in septic patients caused by bacterial bloodstream infection were compared, their correlations with APACHEⅡ scores within 24 hours were analyzed, and their diagnostic efficacies were also analyzed. Results ①It was shown by Pearson correlation coefficients that positively statistical correlation was found between PCT ( r=0.638 ), CRP ( r=0.620 ), endotoxin ( r=0.284 ), WBC ( r=0.209 ) and APACHEⅡscore ( all P=0.000 ) in bacterial bloodstream infective patients ( n=292 ), and positively statistical correlation was found between PCT ( r=0.626 ), CRP ( r=0.616 ), Neut%( r=0.297 ) and APACHEⅡscore ( all P<0.01 ) in Gram positive bacterial ( G+) group ( n = 86 ), and positively statistical correlation was shown between PCT ( r=0.631 ), CRP ( r=0.616 ), endotoxin ( r=0.301 ), WBC ( r=0.226 ) and APACHEⅡscore ( all P<0.01 ) in Gram negative bacterial ( G-) group ( n=206 ).②It was shown that PCT and CRP of both G+/G-bacterial severe sepsis and septic shock subgroup were significantly higher than those of sepsis subgroup, respectively [ G+ group: PCT (μg/L ):0.92 ( 0.38, 4.75 ) vs. 0.43 ( 0.22, 1.00 ), CRP ( mg/L ):118.45±62.60 vs. 57.97±32.41;G-group:PCT (μg/L ):6.92 ( 1.94, 25.90 ) vs. 1.28 ( 0.27, 4.12 ), CRP ( mg/L ):130.99±60.18 vs. 49.18±26.87, all P<0.01 ], and the endotoxin and WBC in G-bacterial severe sepsis and septic shock subgroup were significantly higher than those of sepsis subgroup [ endotoxin ( ng/L ): 19.40 ( 9.62, 33.87 ) vs. 10.00 ( 5.00, 18.52 ), WBC ( ×109/L ): 12.13±6.72 vs. 9.61±5.01, both P<0.01 ]. The PCT and endotoxin in G-bacterial severe sepsis and septic shock subgroup were significantly higher than those in G+severe sepsis and septic shock subgroup [ PCT (μg/L ):6.92 ( 1.94, 25.90 ) vs. 0.92 ( 0.38, 4.75 ), endotoxin ( ng/L ):19.40 ( 9.62, 33.87 ) vs. 2.56 ( 1.11, 4.01 ), both P<0.01 ].③The diagnostic efficacy of inflammatory parameters for severe sepsis and septic shock subgroup were: PCT area under receiver operating characteristic ( ROC ) curve ( AUC ) = 0.683, the cut-off point = 0.55 μg/L, sensitivity 63.2%, specificity 69.0%; CRP AUC = 0.802, the cut-off point = 92.25 mg/L, sensitivity 73.7%, specificity 86.2%; WBC AUC = 0.614, the cut-off point = 7.35×109/L, sensitivity 75.4%, specificity 48.3%; Neut% AUC = 0.622, the cut-off point = 0.882, sensitivity 43.9%, specificity 79.3%in G+group. At the same time, it was shown that PCT AUC=0.780, the cut-off point=6.80μg/L, sensitivity 51.0%, specificity 93.9%; CRP AUC = 0.907, the cut-off point = 90.10 mg/L, sensitivity 73.2%, specificity 95.9%;endotoxin AUC=0.694, the cut-off point=17.54 ng/L, sensitivity 57.3%, specificity 75.5%;WBC AUC=0.611, the cut-off point = 10.54×109/L, sensitivity 54.1%, specificity 69.4%; Neut% AUC = 0.621, the cut-off point = 0.843, sensitivity 65.6%, specificity 61.2%in G-group. Conclusions The plasma PCT and CRP have the best correlation between inflammatory parameters and severity of disease in bloodstream infective sepsis patients. CRP has the best diagnostic effect in severe sepsis/septic shock patients with bloodstream infection.