Objective:To investigate the drugs-sensitivity spectrum of multidrug-resistant tuberculosis (MDR-TB) in China and provide a scientific evidence for the drug selection in clinical therapy and the control of MDR-TB.Methods:A total of 167 strains of MDR-TB were included in this study. Every strain was genotyped by lysX gene sequencing and their sensitivity to 13 different anti-TB drugs was tested by using MicroDST TM and BACTEC TM MGIT 960 TM liquid-culturing method. The association between drug resistance and genotypes as well as cross drug resistance was also analyzed. The results were analyzed by means of the comparison of enumeration data between two groups with χ2 test. Results:The overall resistance rate of 167 MDR-TB strains to 11 anti-TB drugs, except isoniazide and rifampicin, was 95.81%, the rates of pre-extensive drug-resistance (pre-XDR) and extensive drug-resistance were 31.14%(52/167) and 6.59% (11/167), respectively. The streptomycin resistance rate of Beijing genotypes was significantly higher than that of the non-Beijing genotypes ( χ2=30.682, P<0.05), while the pre-XDR proportion in Beijing genotypes was lower than that in non-Beijing genotypes ( χ2=5.332, P<0.05). The resistance rates of Ofloxacin and Pyrazinamide in the modern Beijing genotype were significantly higher than those in classical ones ( χ2=4.105 and χ2=3.912, P<0.05). In addition, the cross-resistance rate to rifampicin and rifabutin was 86.23%. A significant difference in drug-resistance rate to rifabutin was seen among groups with different levels of rifampicin resistance ( χ2=45.912, P<0.05). There was positive correlation not only between ofloxac resistance and moxifloxac resistance, but also between amikacin resistance and kanamycin resistance, with the coefficient of 0.87 and 0.91, respectively. Conclusions:In this study, we observed that there were high incidences of the resistance to 11 anti-TB drugs in 167 clinical MDR-TB strains and the cross resistance phenomena between drugs of the same type were quite serious. The majority of MDR-TB strains belonged to Beijing genotype, which was highly associated with streptomycin resistance.

Objective: To investigate the effect of pediatric early warning score(PEWS) on the evaluation of severity of emergency children admitted to pediatric intensive care unit(PICU). Methods: A total of 1 069 cases hospitalized through emergency room into PICU in Guiyang Children′s Hospital, from January to December in 2017 were analyzed, and the PEWS was recorded for the first time in emergency room and PICU, while receiver operating curve was used to analyze the efficacy of PEWS to diagnose the children, who were at risk of clinical deterioration and required transfer to the PICU, which included the sensitivity, specificity, Youden index.The diagnostic value of PEWS in asse-ssing the severity of disease in critically ill children was explored. Results: The 1 069 severe cases of PICU ranged from 1 month to 13 years and 8 months, and PEWS score was (4.6±0.8) scores in the emergency room, and (5.1±0.5) scores in the PICU, so there were significant differences of the PEWS score between the death group [(8.0±0.5) scores] and the survival group [(4.8±0.8) scores] in the emergency room and PICU(all P<0.05). The PEWS score of the respiratory, nervous, circulatory and digestive system groups in PICU was (5.8±0.5) scores, while other systemic diseases (blood, kidney, poisoning, and so on) PEWS score was(4.2±0.5) scores; which showed significant differences between 2 groups(t=4.60, P<0.05). In PICU, the score of PEWS was greater than or equal to 4.7, which was the demarcation point to distinguish the critical condition and predict the death risk of the patient. Conclusions PEWS is of great significance for assessing the children sent to PICU.Patients with mainly respiratory, circulatory, neurological, and digestive system diseases have higher PEWS scores.The PEWS score of other system diseases is significantly reduced.It is suggested that PEWS is not able to reflect the disease of such a system and needs to be taken seriously.

Objective To explore the therapeutic effects of sub-hypothermia and hyperbaric oxygen (HBO) combined with drugs in the treatment of patients with severe traumatic brain injury in the high plateau region and possible mechanism involved.Methods With the knowledge and consent of the patients and following the approval of the ethics committee,118 patients with severe traumatic brain injury were randomly divided into the comprehensive treatment group (58 cases),the sub-hypothermia group (30 cases) and the HBO group (30 cases).Fifty-eight patients in the comprehensive treatment group had sub-hypothermia and HBO treatment,in addition to routine drug therapy; the patients in the sub-hypothermia group were treated with sub-hypothermia in addition to routine drug therapy; and the patients in the HBO groups received HBO therapy in addition to routine drug therapy.Glasgow coma scale (GCS) scores,Glasgow outcome scale (GOS) scores and therapeutic effects were closely observed and compared both before and after treatment between the 3 groups.Results Analyses indicated that total efficacy for the comprehensive treatment group was 93.16％,which was higher that of the sub-hypothermia group (66.7％) and the HBO group (76.7％),with statistical significance(P ＜ 0.05),when comparisons were made between the 3 groups.Before therapy,there were significant differences in the GCS scores for the 3 groups (P ＞ 0.05).Following treatment with respective protocols,GCS scores for the 3 groups all increased to some extent,and differences could be uoted in statistical significance,when comparisons were made between pre-therapy and post-therapy (P ＜ 0.05).Following treatment,GCS and GOS scores for the comprehensive treatment group were obviously higher than those of the sub-hypothermia group and the HBO group,and there were statistical differences when comparisons were made between the 3 groups (P ＜ 0.05).Conclusions Early application of sub-hypothermia and timely treatment with HBO could significantly improve the therapeutic effects on patients with severe traumatic brain injury,decrease mortality,reduce incidence of neural function disorder after severe traumatic brain injury and the incidence of sequelae,and at the same time could improve the life quality ofthe patients.

Objective To explore the therapeutic effects of sub-hypothermia and hyperbaric oxygen (HBO) combined with drugs in the treatment of patients with severe traumatic brain injury in the high plateau region and possible mechanism involved.Methods With the knowledge and consent of the patients and following the approval of the ethics committee,118 patients with severe traumatic brain injury were randomly divided into the comprehensive treatment group (58 cases),the sub-hypothermia group (30 cases) and the HBO group (30 cases).Fifty-eight patients in the comprehensive treatment group had sub-hypothermia and HBO treatment,in addition to routine drug therapy; the patients in the sub-hypothermia group were treated with sub-hypothermia in addition to routine drug therapy; and the patients in the HBO groups received HBO therapy in addition to routine drug therapy.Glasgow coma scale (GCS) scores,Glasgow outcome scale (GOS) scores and therapeutic effects were closely observed and compared both before and after treatment between the 3 groups.Results Analyses indicated that total efficacy for the comprehensive treatment group was 93.16％,which was higher that of the sub-hypothermia group (66.7％) and the HBO group (76.7％),with statistical significance(P ＜ 0.05),when comparisons were made between the 3 groups.Before therapy,there were significant differences in the GCS scores for the 3 groups (P ＞ 0.05).Following treatment with respective protocols,GCS scores for the 3 groups all increased to some extent,and differences could be uoted in statistical significance,when comparisons were made between pre-therapy and post-therapy (P ＜ 0.05).Following treatment,GCS and GOS scores for the comprehensive treatment group were obviously higher than those of the sub-hypothermia group and the HBO group,and there were statistical differences when comparisons were made between the 3 groups (P ＜ 0.05).Conclusions Early application of sub-hypothermia and timely treatment with HBO could significantly improve the therapeutic effects on patients with severe traumatic brain injury,decrease mortality,reduce incidence of neural function disorder after severe traumatic brain injury and the incidence of sequelae,and at the same time could improve the life quality ofthe patients.