Objective To compare the influence of propofol combined with sufentanil or remifentanil on the quality of wake-up during scoliosis surgery by wake-up test.Methods Fifty pa-tients undergoing scoliosis surgery were randomized into two groups.During the surgery,propofol combined with sufentanily 0.3-0.6 μg·kg-1·h-1 (group SF)or remifentanil 0.2-0.3 μg·kg-1·min-1 (group RF)were continuously infused to maintain anesthesia,and BIS was maintained at 40-60.In wake-up test,the infusion of sufentanyl in group SF was paused and,the infusion rate of remifentanil in group RF was adjusted to 0.05 μg·kg-1·min-1 until the patient completed the wake-up test under instruction.The time that spontaneous breathing occurred,body movement was detected and the capa-bility to follow instructions in both two groups were recorded.MAP,HR,PET CO2 were measured at the time 10 min after medication adjustment (T1 ),waking up(T2 )and 10 min after waking up (T3 ), respectively,in both two groups.Wake-up quality was also recorded.Results The time that sponta-neous breathing occurred,body movement was detected and the capability to follow instructions in group RF were significantly shorter than those in group SF (P <0.05).At T2 the incidence of agita-tion in group RF was significantly higher than that in group SF(P <0.05).And the hemodynamics of group SF were more stable than those of group RF (P <0.05).Conclusion Propofol combined with sufentanil can improve wake-up quality during scoliosis surgery,but the wake-up time is relatively lon-ger.

Objective To compare the features of activity and participation difficulty of children with cerebral palsy, intellectual disability and autism. Methods 42 children with cerebral palsy, intellectual disability, and autism aged 3-6 years were evaluated with ICF-CY Questionnaire. Results There were mild barriers in the domains of learning and applying knowledge, communication, mobility, self-care, domestic life and major life areas, and the moderate barriers in the domains of general tasks and demands, interpersonal interactions and relations. There were more barriers in learning and applying knowledge in children with cerebral palsy and intellectual disability than those with autism. Conclusion There are various features in activity and participation difficulty in children with cerebral palsy, intellectual disability or autism, which required diversity of educational rehabilitation strategies.

Objective To investigate the effects of traditional Chinese medicine colquhounia root tablet on the expression of tight junction protein claudin-2 and ZO-1 in bronchial epithelium tissues of rats with acute lung injury (ALI), and to study the mechanism of protective effect of colquhounia root tablet on ALI. Methods Twenty-four healthy male Sprague-Dawley (SD) rats were randomly divided into control group, ALI group and colquhounia root tablet pretreatment group, with 8 rats in each group. The model of ALI was reproduced by intravenous injection of oleic acid 0.04 mL/kg, and the rats in cont rol group were given the same amount of normal saline (NS) instead. The rats in colquhounia root tablet pretreatment group were intragastric administrated with colquhounia root tablet of 600 mg·kg-1·d-1 (2 mL) for 10 days before model reproduction, and the rats in control group and ALI group were given the same amount of NS. At 4 hours after model reproduction, the blood was drawn from abdominal aorta, and bronchoalveolar lavage fluid (BALF) was collected for determination of protein content in plasma and BALF, and the lung permeability index (LPI) was calculated. The rats were sacrificed to collect lung tissues for determination of lung wet/dry weight ratio (W/D), the changes in pathology of lung tissue were observed after hematoxylin and eosin (HE) staining with light microscope, and lung injury score (LIS) was evaluated. The immunohistochemic al staining was used to detect the expression and localization of claudin-2 and ZO-1 in bronchial epithelium tissues. The protein expressions of claudin-2 and ZO-1 in bronchial epithelium tissues were determined by Western Blot. Results Compared with control group, the lung injury in ALI group was more obvious including cellular edema and structural disorder of intercellular connection by optical microscope, and LIS, W/D ratio, and LPI were significantly increased (LIS: 3.81±0.42 vs. 0.40±0.08, W/D: 7.68±0.64 vs. 4.44±0.39, LPI: 0.89±0.15 vs. 0.38±0.05, all P < 0.01). Claudin-2 and ZO-1 were mainly expressed in the bronchial epithelium cell, and the expression degrees were significantly weakened in ALI group as compared with control group. It was shown by Western Blot results that compared with control group, the protein expressions of claudin-2 and ZO-1 were significantly down-regulated in ALI group [claudin-2 protein (gray value): 0.43±0.31 vs. 2.16±1.33, ZO-1 protein (gray value): 1.25±0.41 vs. 2.82±0.76, both P < 0.01]. Compared with ALI group, colquhounia root pretreatment could effectively diminish the degree of ALI (LIS: 1.22±0.39 vs. 3.81±0.42, W/D: 4.62±0.84 vs. 7.68±0.64, LPI: 0.46±0.07 vs. 0.89±0.15, all P < 0.01), and the protein expressions of claudin-2 and ZO-1 were significantly up-regulated [claudin-2 protein (gray value): 2.98±0.91 vs. 0.43±0.31, ZO-1 protein (gray value): 2.35±0.51 vs. 1.25±0.41, both P < 0.01]. Conclusion Administration of colquhounia root table could attenuate lung injury induced by oleic acid with improving epithelial barrier function via up-regulate the expression claudin-2 and ZO-1, which play a protective effect on the lung of rats with ALI.

Humans ; Hydroxycholecalciferols ; blood ; Pneumoconiosis ; blood

Objective To evaluate the application value of polarized light dermoscopy in the diagnosis of vitiligo and differential diagnosis between vitiligo and other common hypopigmented diseases.Methods Dermoscopic images of lesions of 235 patients with confirmed vitiligo (130 with active vitiligo and 105 with stable vitiligo) were collected from the database in the Department of Dermatology,Xijing Hospital from January 2018 to July 2018,and retrospectively analyzed.Meanwhile,dermoscopic images of amelanotic nevus (151 cases),pityriasis alba (113 cases) and idiopathic guttate hypomelanosis (54 cases) were compared with the dermoscopic images of vitiligo.Chi-square test was used for comparison of rates among groups.Results The prevalence of perifollicular pigmentation,reticular pigmentation,starburst,Tapioca sago and micro-Koebner phenomenon was significantly higher in the patients with active vitiligo than in those with stable vitiligo (x2 =36.5,151.2,13.0,14.9,8.4 respectively,all P ＜ 0.05).The prevalence of perifollicular pigmentation,perilesional hyperpigmentation,perifollicular telangiectasia,leukotrichia was significantly higher in patients with stable vitiligo than in those with active vitiligo (x2 =91.2,166.0,54.3,41.1 respectively,all P ＜ 0.05).The prevalence of residual perifollicular pigmentation was significantly higher in patients with active (89.2％,116/130) or stable vitiligo (54.3％,57/105) than in those with amelanotic nevus (20.5％,31/151,P ＜ 0.05),pityriasis alba (12.4％,15/113,P ＜ 0.05)or idiopathic guttate hypomelanosis (9.3％,5/54,P ＜ 0.05).Conclusion Residual perifollicular pigmentation could serve as an important feature for distinguishing vitiligo from achromic nevus,pityriasis alba and idiopathic guttate hypomelanosis,and polarized light dermoscopy shows good value in the differential diagnosis between vitiligo and some hypopigmented diseases.

Objective:To explore the value of bedside lung ultrasound in the early diagnosis and severity assessment of ventilator-associated pneumonia (VAP).Methods:A prospective observational study was conducted in 60 patients with VAP (VAP group) and 62 patients without VAP (control group) who were admitted to department of intensive care unit of General Hospital of Ningxia Medical University from September 2018 to July 2020. The gender, age and underlying diseases of non-VAP group were matched with VAP group. The general clinical data such as gender, age, underlying diseases, department source of the patient, acute physiology and chronic health evaluationⅡ(APACHEⅡ) score, sequential organ failure assessment (SOFA) score were recorded. The body temperature, white blood cell count (WBC), procalcitonin (PCT), oxygenation index (PaO 2/FiO 2), alveolar artery oxygen differential pressure (P A-aDO 2) were recorded. During mechanical ventilation, the patient's body temperature, WBC, sputum characteristics, and the change of the lung ultrasound were dynamically observed. With or without dynamic air bronchogram, lung ultrasound was considered to be positive as long as there were small subpleural consolidation or tissue-like sign. Ventilator-associated pneumonia lung ultrasound score (VPLUS) and lung ultrasound score (LUSS) were performed, and chest CT scan was completed on the same day. Use positive chest CT scan as the standard to evaluate the diagnostic efficacy of lung ultrasound, VPLUS score, and the combination of the two with PCT for VAP. LUSS was used to assess the severity of disease in patients with VAP. The correlation between LUSS and PaO 2/FiO 2, P A-aDO 2, APACHEⅡscore and SOFA score were analyzed. Results:① General information: compared with non-VAP group, VAP group had more emergency surgery patients [51.7% (31/60) vs. 33.9% (21/62), P = 0.047], APACHEⅡ score and SOFA score were significantly higher (APACHEⅡscore: 15.4±5.7 vs. 13.4±3.4, P = 0.021; SOFA score: 8.8±4.2 vs. 6.3±3.3, P < 0.001), body temperature tended to rise (℃: 38.3±0.8 vs. 38.0±0.9, P = 0.054), more patients had airway purulent secretions [65.0% (39/60) vs. 41.9% (26/62), P = 0.011], and mechanical ventilation time and length of ICU stay were longer [mechanical ventilation time (days): 10.5 (6.6, 15.0) vs. 4.3 (3.0, 6.0), P < 0.001; length of ICU stay (days): 14.8 (9.0, 18.0) vs. 6.0 (4.0, 9.1), P < 0.001], 28-day mortality rate was higher [31.7% (19/60) vs. 9.7% (6/62), P = 0.003].② Diagnostic efficacy evaluation: when lung ultrasound was positive, VPLUS≥3 and PCT > 0.5 μg/L were used separately for the diagnosis of VAP, the sensitivity was 73.3%, 75.0%, 61.7%, respectively; the specificity was 80.6%, 58.1% and 59.7%, respectively; the 95% confidence interval (95% CI) was 0.685-0.842, 0.574-0.748, 0.514-0.694, respectively, all P < 0.05, positive lung ultrasound had good sensitivity and specificity. When positive lung ultrasound or VPLUS≥3 were combined with PCT > 0.5 μg/L for tandem test, the specificity of VAP diagnosis was increased to 95.2% and 83.9%, respectively; but the specificity of VAP diagnosis of positive lung ultrasound combined with PCT > 0.5 μg/L was higher than VPLUS ≥3 combined with PCT > 0.5 μg/L (95.2% vs. 83.9%, P < 0.05).③ Correlation analysis: LUSS showed a significant positive correlation with APACHEⅡ and SOFA score ( r values were 0.407, 0.399, P values were 0.001, 0.002, respectively), LUSS had no relation with PaO 2/FiO 2 and P A-aDO 2 ( r values were 0.189, -0.064, P values were 0.629, 0.149, respectively). Conclusions:Lung ultrasound can early detect VAP , and its diagnostic specificity is significantly improved when combined with PCT > 0.5 μg/L. LUSS is closely related to the severity of disease in VAP patients, therefore, lung ultrasound may be an effective method for early diagnosis and efficacy evaluation of VAP patients.

Objective:To evaluate the predictive effect of the 24 h energy expenditure value obtained by indirect calorimetry (IC) on the prognosis of patients with multiple traumatic mechanical ventilation.Methods:A total of 140 patients with multiple traumatic mechanical ventilation who were hospitalized in the ICU of General Hospital of Ningxia Medical University from December 1st, 2016 to August 31st, 2018 were selected as research objects. The general information such as sex, age, Height, weight, and clinical diagnosis were recorded. The IC method was used to measure the patient's 24 h energy expenditure, and the ratio of 24 h energy expenditure to the actual body weight of the patients was calculated the energy expenditure of 24 h energy expenditure per kilogram of body weight. The patient’s mechanical ventilation time and length of stay in ICU were statistically analyzed. The outcome indexes were 28-day mortality and the incidence of hospital-acquired infection. The receiver operating characteristic curve (ROC) was used to analyze the predictive value of 24 h energy expenditure and 24 h energy expenditure per kilogram of body weight.Results:The mechanical ventilation time was positively correlated with 24 h energy expenditure and 24 h energy expenditure per kilogram of body weight ( r=0.470, r=0.247, both P<0.01). The length of sty in ICU was positively correlated with the 24 h energy expenditure of patients with multiple trauma( r=0.276, P<0.05). The area under the ROC curve (AUC) of the 24 h energy expenditure and 24 h energy expenditure per kilogram of body weight for the 28 d mortality and the incidence of hospital-acquired infection were 0.647, 0.663, 0.832, 0.646, with the 24 h energy expenditure per kilogram of body weight greater than 30.4 kcal/(kg·d) as the best critical value for judging 28 d mortality. The sensitivity was 66.5%, specificity was 77.0%, and the 24 h energy expenditure consumption greater than 2 083 kcal/d was used as the optimal critical value for judging the susceptibility to acquire hospital infection, with a sensitivity of 80.0% and specificity of 80.7%. Conclusions:The mechanical ventilation time and length of stay in ICU are closely related to energy expenditure in patients with multiple trauma. The 24 h EE per kilogram of body weight and 24 h energy expenditure have a certain predictive effect on the prognosis of patients with multiple trauma.

At present,precise radiotherapy has been widely used through the development with many years,but the existing technique still is limited by the limitation of tolerance dose of normal tissues,which cannot achieve the optimal goal of treating tumor.Flash radiotherapy(Flash-RT)is one kind of radiotherapy technique that uses the beam with ultra-high dose rate(UHDR)to conduct irradiation,which can furthest treat tumors while significantly reduce radiation injury of normal tissues.But until now,the biological mechanism,key physical parameters and triggering mechanism of Flash-RT are still unclear,and its principle and clinical translational application are still in the stage of research.This review clarified the technological advance and clinical translational application of Flash-RT research through summarized the relevant research of Flash-RT.

Objective　The predisposing factors,clinical characteristics and imaging characteristics of intracranial and extracranial vertebral artery dissection are compared to understand the influence on the location of vertebral artery dissection and the ultrasonic characteristics of different parts.Methods　Forty-four patients with vertebral artery dissection diagnosed in the Department of Neurology of our hospital from June 2017 to June 2021 were selected and divided into intracranial group and extracranial group according to different lesion sites of vertebral artery dissection.The differences in baseline data,susceptibility factors,clinical manifestations and ultrasonic characteristics of the two groups were compared.Results　A total of forty-four patients were enrolled and were divided into intracranial vertebral artery dissection group (n=20 cases) and extracranial artery dissection group (n=24 cases).The incidence of massage or trauma in extracranial was significantly higher than that in intracranial (P=0.01).Headache symptoms were more common in intracranial group (P=0.04),however there were no significant differences in clinical features such as dizziness,hemiplegia,dysphagia and Horner’s sign between the two groups (P>0.05).Intramural hematoma was the most common ultrasonic characteristics in patients with vertebral artery dissection,and Ultrasonography was significantly limited in the intracranial segment.It is simple to operate,non-invasive,inexpensive and easy to popularize.Conclusions　The predisposing factors and clinical manifestations of vertebral artery dissection are not identical in different parts.

Objective　To evaluate the diagnostic value of superb microvascular imaging(SMI) in cervical artery dissection.Methods　A total of 42 patients with cervical artery dissection diagnosed by the Department of Neurology of our hospital from June 2017 to June 2021 were collected to evaluate the consistency of SMI and CTA/MRA+DSA in the diagnosis of cervical artery dissection,and to compare the accuracy and sensitivity of SMI.Results　Among 42 patients,the positive rate of cervical artery dissection with ultrasonography,SMI,CTA or MRA and DSA were 42.8 %（18/42）,90.4% （38/42） and 92.6%（39/42） respectively.The DSA mostly showed the line-like sign(n=19,48.7%); Ultrasonography and SMI mostly showed the intramural hematoma.SMI and CTA/MRA+DSA showed the good consistency in the diagnosis of cervical artery dissection（Kappa=0.340，P=0.056).Superb microvascular imaging was superior to ultrasonography in the detection of cervical artery dissection（Kappa=5.895，P=0.015）.The area under the ROC superb microvascular imaging diagnosis of cervical artery dissection was 0.966.It is suggested that superb microvascular imaging has high accuracy in diagnose cervical artery dissection.Conclusion　Superb microvascular imaging has high clinical value in the diagnosis of various types of cervical artery dissection.