Objective To observe the changes of serum iron in patients with bronchopneumonia (bacterial pneumonia,mycoplasmal pneumonia) before and after treatment,and to discuss whether it can be used as an indicator of infection.Methods Forty cases with bacterial pneumonia and 41 cases with mycoplasmal pneumonia were recruited.The serum iron levels before and after treatment in bacterial pneumonia group and mycoplasmal pneumonia group were compared and analyzed.The correlation between white blood cell count,percentage of neutrophils,serum C-reactive protein (CRP) levels and the serum iron levels before treatment,and changes of the serum iron before and after treatment were analyzed.Results The level of serum iron after treatment in the bacterial pneumonia group [(16.28 ±5.81) μmol/L] was significantly higher than that before treatment [(4.83 ± 2.12) μ mol/L] (t =-11.19,P＜0.001).The level of serum iron after treatment in the mycoplasmal pneumonia group [(15.17 ±5.31) μmoL/L] was also significantly higher than that before treatment [(4.77 ± 1.99) μmol/L] (t =-11.29,P ＜0.001).The serum iron levels between the two groups before and after treatment had no statistically significant differences (t =0.135,0.898,P =0.893,0.373).There was no correlation between white blood cell count,percentage of neutrophils,CRP and serum iron levels before treatment (bacterial pneumonia group:r =-1.87,-0.219,-0.152;mycoplasmal pneumonia group:r =-0.032,-0.302,-0.274) and changes of the serum iron before and after treatment (bacterial pneumonia group:r =0.098,0.062,0.205;mycoplasmal pneumonia group:r =0.01 1,0.171,-0.105,P ＞ 0.05).Conclusion The serum iron level is significantly decreased in children with pulmonary infectious diseases and increased to normal level after anti-infection treatment.Serum iron can not be used as an indicator of infection in children.

Objective:To investigate the clinical characteristics of infantile neuroblastoma (NB) and the factors that affect prognosis.Methods:We retrospectively analyzed the clinical data collected from 44 cases of NB who received treatment in The Fourth Affiliated Hospital of China Medical University from March 2008 to March 2017 to summarize the clinical characteristics of NB and the factors that affect prognosis.Results:Among the 44 cases, 21 were male and 23 were female, with a median age of 5.5 months (range, 0 days-12 months). Four cases had stage I NB, seven cases stage II NB, five cases stage III NB, 15 cases stage IV NB, and 13 cases stage IVs NB. The tumors were located in the adrenal glands and retroperitoneum ( n = 26, 59.1%), posterior mediastinum ( n = 15, 34.1%), pelvis ( n = 2, 4.5%), and neck ( n = 1, 2.3%). The median follow-up time was 90 months (range, 2-144 months). The 3-year and 5-year overall survival rates were 93.2% and 90.9%, respectively. Among 35 cases who survived more than 5 years, 30 cases survived healthily, 5 cases survived with tumor, and 4 cases died. Bone marrow metastasis, bone metastasis, and the extent of tumor resection greatly affect the prognosis of NB ( χ2 = 6.92, 12.19, 4.70, all P < 0.05). Conclusion:The overall prognosis of NB is good in infants. NB mainly occurs in the abdomen. The survival rate of infants with stage IVs NB is lower than that of infants with stages I, II, and III NB. The prognosis of NB occurring in the abdomen is poorer than that occurring in other regions. Bone marrow metastasis, bone metastasis, and the extent of tumor resection are adverse factors affecting the prognosis.