After birth,premature infants have greater nutritional needs,because of decreased intrauterine nutrient deposition,immaturity of the gastrointestinal tract (GI),and medical conditions such as hypoxia,acidosis and surgery.In order to reach the optimal growth rate,continual reassessment and delivery of adequate energy and nutritional support are imperative.We suggest initiating enteral feeding in the first few days after birth to prime the GI in the premature infant,and then gradually achieve full enteral feedings when clinical condition is stable.Many signs may suggest feeding intolerance.Clinicians should composite these factors to determine.The use of drugs such as erythromycin to treat feeding intolerance in premature infants needs to be clarified.

Preterm infants are often significantly growth retarded at the time of hospital discharge.They often in the nutritional crisis after hospital discharge,and should be carefully follow up evaluated.Preterm formula and fortified breast milk may improve the growth of preterm infants and is a reasonable option for preterm infants.Preterm formula and fortified breast milk are recommended for preterm infants with weights below the 10th percentile for age at the time of hospital discharge and those birth weights below 1 500 g.After hospital discharge,exclusively human milk-fed preterm infants are at increased risk for suboptimal growth compared to formula-fed infants.Infants with BPD are at increased risk of growth retardation after hospital discharge.Protein and mineral enriched formula may provide short-term growth catch-up.

Autism spectrum disorders(ASD) effect on children's physical and mental health has been paid more and more attention,and is widely recognized on the importance of early intervention for young children with ASD,effective intervention for the young children with ASD has become a hot pot in this field.This paper introduced the early start denver model,which was highly respected in early intervention for young children with ASD.

Child anxiety disorders are among the common mental health disorders,often with physical symptoms or physical disorders.The life time prevalence is relative high.Child anxiety disorders mainly include in subtype as separation anxiety,specific phobia,social anxiety disorder,panic disorder and selective mutism.In this paper,the prevalence rate of the above 5 subtypes,etiology,clinic manifestation,treatment and outcome were introduced.

Attention deficit and hyperactivity disorders (ADHD),a neurodevelopmental disability with core symptoms of inattention,hyperactivity and impulsivity increases the risk of many cognitive problems.However,the brain structures and pathways involved in the interplays between the core symptoms,such as activity deficits,and cognitive impairments have remained unknown over the past decades.This article review the academic developments in recent years that elucidate the neural mechanisms involved in the sensorimotor-cognitive difficulties at systematic,circuitry,cellular,and molecular levels.The treatment potentials of physical activity enhancement were addressed,as a new alternative and supplementary therapeutic strategy for ADHD,based on our current understanding of the neurobiology of cognitive-sensorimotor interaction.

Specific learning disorder (SLD) is one of the most common neurodevelopmental disorders with a biological origin manifested by difficulties in the acquisition or use of academic skills.The onset is usually during the years of formal schooling and may occur across the life span with profound and extensive influences.The purpose of this article is to review the prevalence,etiological factors,neuropsychological mechanism,clinical manifestation,diagnosis,differential diagnosis,comorbidity and treatment of SLD.

Legg-Calvé-Perthes disease is one of the most concerned hip diseases in the pediatric orthopaedic field.Although there are many treatments for Legg-Calvé-Perthes disease,new ideas for the therapy of Legg-Calvé-Perthes disease still exist.Moreover,the prognosis of the disease mostly focuses on the studies of the degree of involvement of the epiphyseal plate,age of onset and lateral pillar classification.This contribution summarizes the treatments and prognosis of Legg-Calvé-Perthes disease.

Objective In order to raise the clinicians' recognition of biliary pancreatitis in children,the clinical features between children with biliary pancreatitis and those with non-biliary pancreatitis were compared.Methods In this retrospective study,a total of 88 children with acute pancreatitis(AP)were enrolled,who stayed at the Department of Pediatrics,Tianjin Nankai Hospital from January 2010 to December 2015.The clinical characteristics,biochemical index(amylase,lipase,glucose,calcium,hepatic and renal function)and imageology examination [pancreatic ultrasound,pancreatic computed tomography,magnetic resonance cholangiopancreatography(MRCP)] were analyzed and evaluated.The etiology of biliary pancreatitis was analyzed.In addition,the clinical features,laboratory examinations and imageology between the children with biliary pancreatitis and those with non-biliary pancreatitis were also compared.Then,multiple Logistic regression analysis was conducted to identify the factors which were significantly associated with biliary pancreatitis independently.Results Of the 88 cases,there were 68 cases of non-biliary pancreatitis,aged(9.5±4.2)years,and 20 cases of biliary pancreatitis,aged(6.7±4.5)years,who represented the plurality(22.7％),including 9 cases of anatomic abnormalities and 11 cases of choledocholithiasis,cholecystolithiasis and cholestasis.Compared with children of non-biliary pancreatitis,children with biliary pancreatitis had more severe condition,there was statistically significance between 2 groups(x2=23.313,P=0.000).However,there was no statistically significance between 2 groups related to the gender,course of disease,hospitalization time,body mass index(BMI)percentile and clinical symptoms(all P>0.05).Children with biliary pancreatitis showed higher levels of serum amylase,serum lipase and urine amylase than those with non-biliary pancreatitis,and there were statistically significances between 2 groups(Z=-3.535,-3.980,-2.952,P=0.000,0.000,0.003).In addition,children with biliary pancreatitis had higher levels of alanin aminotransferase(ALT),aspartate aminotransferase(AST)than those with non-biliary pancreatitis,and there were statistically significances between 2 groups(Z=-5.625,-2.341,P=0.000,0.019).However,total bilirubin did not differ significantly between 2 groups(Z=-0.453,P=0.650).There was no statistically significance between 2 groups in relation to white blood cell count,C-reactive protein(CRP),lactate dehydrogenase(LDH),blood urea nitrogen(BUN),creatinine(Cr),calcium and glucose(all P>0.05).Of the 88 cases,all children with AP were fasting,fluid and electrolyte supplementation,acid suppression of omeprazole,and octreotide by conservative treatment,which was an inhibitor of exocrine pancreatic secretion.In addition,children with AP should be given intravenous antibiotics covering gram-negative bacteria in the early stage.Children with non-biliary pancreatitis had better prognosis than those with biliary pancreatitis,and there was a statistical significance between 2 groups(P=0.000).Children with non-biliary pancreatitis had lower recurrence risk than those with biliary pancreatitis,and there was a statistical significance between 2 groups(x2=4.778,P=0.044).The positive rate was higher by abdominal ultrasound(45.0％)and computed tomography(CT)(81.2％)in biliary pancreatitis group than those with non-biliary pan-creatitis group(17.9％,35.2％),and there were statistical significances between 2 groups(x2=4.782,10.554,P=0.029,0.002).However,there was no statistical significance in relation to MRCP between the biliary pancreatitis group(83.3％)and the non-biliary pancreatitis group(85.7％)(P=1.000).In multiple Logistic regression analysis,ALT was an independent predictor of biliary pancreatitis(OR=0.896,P=0.001).Conclusions ALT is the significant risk factor for predicting biliary pancreatitis over other etiology.A biliary cause should be suspected in children with AP who are presented with high levels of ALT.These findings will spur prospective studies to determine the optimal evaluation and management of children with biliary pancreatitis.

Objective To explore the diagnostic value of prothrombin time(PT),activated partial thromboplastin time(APTT),fibrinogen(FIB),D-Dimer(DD),antithrombin Ⅲ(ATⅢ),platelet(PLT)in activity and severity assessment of ulcerative colitis(UC),and to analyze whether they could evaluate the degree of activity UC in children.Methods The data of UC patients in the Department of Gastroenterology,Children's Hospital of Nanjing Medical University from January 2012 to September 2016 were analyzed,25 cases of remission and 36 cases of active UC patients were selected as the study subjects.Thirty healthy children were selected as healthy control group,combined with the coagulation function indicators for analysis.Results Receiver operating characteristic area under the curve(AUC)of PT,APTT,FIB,DD,ATⅢ and PLT in UC patients was 0.659,0.840,0.744,0.776,0.599 and 0.792,the activity of UC patients was 0.849,0.889,0.836,0.912,0.964 and 0.966,respectively.The results of PT,APTT,FIB,DD and PLT in children with active UC were significantly higher than those in the healthy control group,and ATⅢ was significantly lower than that in the healthy control group.Compared with the healthy controls,the levels in remission UC patients were not significantly different(P>0.05).The 3 subgroups of activity UC had no significant differences among PT and APTT(F=0.652,1.755,all P>0.05),However,there were significant differences among FIB,DD,ATⅢ and PLT(F=66.495,32.817,88.284,22.892,all P<0.05).FIB,DD and PLT were moderately positively correlated with severity of activity UC patients(r=0.857,0.648,0.654,all P<0.05),and ATⅢ had moderately negative correlation(r=-0.789,P<0.05).Progressive regression analysis showed that the severity of UC was associated with FIB,DD and ATⅢ(R2=0.830,F=39.962,P<0.05).Conclusion FIB,DD and ATⅢ can be used as index for the activity and evaluation of UC.

Objective To explore the clinical features,efficacy and prognosis of different treatments for children with achalasia of cardia(AC).Methods In this retrospective study,the clinical features,laboratory examination and treatment of 36 children with AC who had been admitted to Department of Gastroenterology,Beijing Children's Hospital,Capital Medical University from August 2006 to September 2015 were reviewed,and the efficacy and prognosis of different treatments were compared.The symptoms of the children were graded using the AC clinical symptom score(Eckardt score),and the Eckardt score ≤ 3 scores was defined as the effective treatment.SPSS 19.0 statistical software was used to analyze the data,and P<0.05 for the difference was statistically significant.Results Thirty-six children with AC included 24 boys and 12 girls.Ages ranged from 1.4 to 15.5 years old,with a mean age of(10.0±3.4)years old.Course of disease ranged from 1 month to 9 years,with a mean course of 0.5(0.2,3.0)years.In the 36 children,33 cases(91.7％)had vomiting,23 cases(63.9％)had dysphagia,16 cases(44.4％)had weight loss,and 9 cases(25.0％)had chest pain.The effective rates of treatment in surgical treatment group and drug treatment group were 100.0％(13/13 cases)and 71.4％(5/7 cases),respectively in 3 months,and there was no significant difference between the 2 groups(P=0.111).The effective rates of treatment were 100.0％(13/13 cases)and 50.0％(3/6 cases),respectively in 6 months,and the difference was statistically significant between the 2 groups(P=0.021).Within 12 months,there was no recurrence in surgical treatment group and the effective rate was 100.0％.Children in drug treatment group had 1 case who stopped taking medicine,while the other children received surgical treatment in other hospitals due to poor drug treatment.Conclusions Drug and surgical treatment of AC both have good short-term effect,however,the medium and long-term efficacy of surgical treatment is higher than that of drug treatment in children.Symptomatic relief is more stable,and symptom is not easy to relapse for the children with surgical treatment.