Objective To investigate the clinical effect of caffeine citrate combined with continuous positive airway pressure( CPAP) in the treatment of primary apnea of prematurity.Methods 80 premature infants with primary apnea who received therapy from January 2014 to August 2015 were selected as research subjects.According to ran-dom number table,the infants were divided into two groups equally.Besides conventional treatments,the control group received treatment of caffeine citrate,while the observation group received CPAP and caffeine citrate.Then,the cura-tive efficacy,situation of apnea and adverse reactions were compared.Results The total effective rate between the observation group and the control group had statically significant difference(95.0%vs.77.5%,P<0.05) .Compared with the control group,the observation group had statistically less seizure frequency,shorter duration of seizure and disappearance time of symptoms(all P<0.05).During the treatment,incidence rates of tachycardia,dysphoria and electrolyte disturbance in the observation group were statistically lower than those in the control group (all P<0.05), while the incidence of feeding intolerance in the two groups had no statistically significant difference ( P >0 .0 5 ) . Conclusion Caffeine citrate in combination with CPAP is effective for primary apnea of prematurity,which can sig-nificantly increase curative efficacy,lessen seizure frequency of apnea,shorten duration of seizure and disappearance time of symptoms with less adverse reactions.

Objective To investigate the change of blood lactate level in children with severe sepsis,and its relationship with clinical prognosis.Methods 90 children with severe sepsis who treated in our hospital from February 201 3 to May 201 4 were selected as the study subjects.According to the prognosis of children,they were divided into survival group and death group,45 cases in each group.The blood lactate levels at different time points, blood lactate clearance rates between the two groups at different time points as well as fibrin,oxygenation index and D -dimer levels were compared after admission.Results After treatment,the fibrin,oxygenation index and D -dimer levels in the two groups were improved.The fibrin and D -dimer levels in the survival group[(2.71 ±0.31 )ng/mL, (0.89 ±0.1 0)mg/L)]were lower than those in the death group[(2.89 ±0.21 )ng/mL,(1 .26 ±0.1 8)mg/L)],the differences were significant(t =3.224,P =0.001 ;t =1 2.053,P =0.000).The oxygenation index of the survival group[(1 96.23 ±1 4.69)mmHg)]was higher than that of the death group [(1 80.23 ±21 .03 )mmHg)],the difference was significant(t =4.1 84,P =0.000).The EGOT compliance rate,APACHE Ⅱscore and MODS incidence rate of survival group were significantly lower than those of the death group,the differences were significant(t =7.200,P =0.007;t =9.1 49,P =0.000;t =29.298,P =0.000).The blood lactate levels at each time points in the survival group were significantly lower than the death group,the differences were statistically significant(t =50.543, P =0.000;t =33.932,P =0.000;t =1 7.91 5,P =0.000;t =28.703,P =0.000).The 6 h,24 h blood lactate clearance rates≥1 0% of the survival group (73.33%,80.00%)were significantly higher than those of the death group(37.78%,44.44%),the differences were significant(χ2 =1 1 .520,P =0.000;χ2 =1 2.1 00,P =0.000). Conclusion Lactate level in children with sepsis is an important indicator of prognosis in children with severe sepsis,with guidance for the treatment of children with sepsis.

Objective To explore the clinical efficacy,adverse reactions and serum levels of IL -10 and TNF-αin children with peptic ulcer undergoing sequential therapy.Methods 68 children with peptic ulcer were selected and randomly divided into two groups,34 cases in each group.The control group received quadruple therapy, namely omeprazole,amoxicillin,clarithromycin and bismuch treatment for seven days.The treatment group underwent sequential therapy:the first 5 d of oral omeprazole,amoxicillin treatment,and the next 5 d omeprazole,amoxicillin and inidazole treatment.The clinical efficacy,adverse reactions,IL-10 and TNF-αlevels of the two groups were com-pared.Results The total effective rates after treatment of the control group and treatment group were 88.24% and 91.18% respectively,there was no statistically significant difference between the two groups(χ2 =1.21,P>0.05). After treatment,the levels of IL-10 and TNF-αin the control group were (24.93 ±6.29)pg/mL and (37.93 ± 8.28)pg/mL,which were significantly decreased (t=5.52,P<0.05,t=8.51,P<0.01).And the levels of IL-10 and TNF-αin the treatment group were (21.36 ±6.31)pg/mL and (29.67 ±6.38)pg/mL,which were significantly decreased(t=11.15,12.29,all P<0.01).The levels of IL-10 and TNF -αof the treatment group were much significant than those of the control group after the sequential therapy (t=3.32,P<0.05,t=8.71,P<0.01). Conclusion Sequential therapy for the treatment of children with peptic ulcer has better effect than the quadruple therapy,and can reduce serum IL-10 and TNF-αlevels,it is worthy of promoting.

Objective To compare the clinical effect of intraosseous versus traditional infusion in critical pediatric patients under resuscitation.Methods 56 critical pediatric patients under resuscitation,who were difficult to establish a venous access,were divided into two groups:intraosseous infusion group (IOI group)and traditional group.The clinical characteristics,lab tests,clinical efficacy and complications of all patients were recorded in detail. Results The general characteristics of two groups were comparable.The mean operation time to establish an emergency infusion access in the IOI group was (1.01 ±0.53)min,which was significantly shorter than (8.97 ±2.36)min of the traditional group(t =4.856,P <0.01).The IOI group had a greater efficacy over the traditional group (50.0% vs 36.7%),in the IOI group,the patients showed obvious positive effect and less patients had no efficacy(χ2 =18.476, P <0.05 ).In addition,lower complication rate and mortality were observed in the IOI group.Conclusion For critical pediatric patients under resuscitation whose intravascular access cannot be achieved through peripheral venous,intraosseous infusion is prior to traditional infusion.

Objective To analyze the therapeutic effect of qiweiqingyan aerosol combined with ribavirin in the treatment of herpetic angina of children hand-foot-mouth disease,and to compare the clinical effects with sim-ple use of ribavirin.Methods 160 children with hand foot and mouth disease were divided into two groups by random number table.They were the observation group (80 cases)and control group (80 cases),respectively.Two groups were both given ribavirin aerosol in the treatment,the observation group were added with qiweiqingyan aerosol agent to carry out treatment,then the clinical curative effects of the observation group and control group were copared.Results In the observation group,the total effective rate was 96.25%,and the total effective rate of the control group was 85.00%,the difference between the two groups had statistical significance (χ2 =5.959,P<0.05).Marked effective rate of the observation group was 86.25%.In the control group,the significant efficiency was 37.50%.The difference between the two groups had statistical significance (χ2 =40.300,P<0.05 ).Defervescence time and bleb disappear time were shorter in the observation group compared to the control group,the difference between the two groups was statistically significant (t=47.880,8.063,5.100,all P<0.05).The adverse reactions in the observation group were significantly lower than those in the control group (χ2 =9.608,P<0.05 ),after statistical analysis.Conclusion Using qiweiqingyan aerosol combined with ribavirin in the treatment of children hand foot and mouth herpangina,can significantly shorten the time of treatment,reduce adverse reactions and improve the cure rate.

Objecfive To investigate the role of serum Insulin-like growth factor(IGF)-1,insulinlike growth factor-binding potein(IGFBP)-3 in children with Henoch-Schonlein purpura(HSP).Methods The serum concentration of IGF-1,1GFBP-3 was measured by enzyme-linked immunosorbent assay(ELISA)method in 45 acute SHP patients,40 recoverv patients and 30 healthy controls.Results The serum levels of IGF-1 [(452±183)μg/L],IGFBP-3 [(13 897±3124)μg/L] and C-reactive protein(CRP)[(20±8)mg/L]in acute phase were significantly higher than those in healthy controls(P<0.0 1)and higher than those during recovery period.The serum level of IGF-1,IGFBP-3 for the HSP patients dropped back slowly and their levels during recovery period were the same as those in healthy controls(P>0.05).The serum levels of IGF-1[(621±253)μg/L] and IGFBP-3[(18 763±3173)μg/L] were higher in the renal damage group than in the non-renal damage group(P<0.01).and the same in patients with gastrointestinal symptoms group as in patients without gastrointestinal symptoms group(P>0.05).whereas the serum level of CRP was not significantly different(P>0.05).The serum levels of IGF-1,IGFBP-3 showed positive correlation with the level of CRP(r=0.624,0.672,P<0.01).Conclusion The IGF-1 and IGFBP-3 may play an important role in the pathological mechanism of HSP.The level of IGF-1 may be used as an indicator for HSP disease activity and progression.IGF-1 mav have a close relation with the damageof renaJ system in HSP.

Objective To determine the serum IgM and IgG antibody levels post-COVID-19 vaccination， and provide scientific evidence for COVID-19 antibody response after vaccination. Methods A total of 980 healthy persons were included in Kunming Third People’s Hospital from July through August， 2021， which had been vaccinated with COVID-19 vaccines and then tested for anti-SARS-CoV-2 IgM and IgG antibodies. Results After the COVID-19 vaccination， 469 persons （positive rate， 47.86%） were positive for anti-IgG antibody. Of them， 75 were males with （positive rate， 39.06%）， and the average IgG level was 0.618 （0.180， 2.526） AU·mL^-1［M（Q₁，Q₃）］； 394 were females （50.00%）， and the IgG level was 0.999 （0.305， 3.334） AU·mL^-1. In addition， 53 persons （5.41%） were anti-IgM antibody positive. Of them， 14 were males （positive rate， 7.29%）， and the average IgM level was 0.057 （0.026， 0.195） AU·mL^-1； 39 were females （4.95%）， and the IgM level was 0.047 （0.027， 0.110） AU·mL^-1. The positive rate of anti-IgG antibody was highest in those aged ≤30 years， which was 51.02% in male （n=25） and 55.88% in female （n=133）. The anti-IgG response differed significantly by gender （χ²=7.401， D=0.135 1， P<0.05）， whereas the anti-IgM response was not significantly different （χ²=1.656， P>0.05）. Among the age groups， anti-IgG antibody level was higher in those aged ≤30 and 51-70 years， with 158 （55.05%） and 122 （52.36%） persons， respectively； the average antibody level was 1.209 （0.426， 4.386） AU·mL^-1 and 1.074 （0.191， 7.670） AU·mL^-1， respectively. The differences in the positive rates of IgG and IgM antibodies and the levels of IgG antibodies among different age groups were statistically significant （P<0.05）. Using Kruskal-Wallis test and Spearman correlation analysis， it showed a high correlation between the IgG and IgM antibodies （r=0.836 4， H=64.82， 20.09， P<0.05）. Conclusion The Anti-SARS-CoV-2 IgG antibody remains high six months post-COVID-19 vaccination， while anti-IgM antibody is low. The IgM and IgG response are higher in the young and elderly. The response differs by gender and age， demonstrating a correlation.