Objective To investigate the effects of procalcitonin(PCT),C-reactive protein(CRP)and white blood cell count(WBC)in children with different pathogenic infectious diseases diagnostic value.Methods 1300 cases of hospitalized pneumonia fromJanuary 2013 to January 2016in our hospital were selected,and the CRP,WBC,PCT and pathogens were examined and compared.Results The positive rate of CRP was 13.53％,among the 1 300 cases,the number of CRP positive was the highest among the <1 year old group,the positive cases of MP-IgM,CP-IgM and RSV-IgM were mainly in the one to three years group,the expression of FLUA-IgM in children aged <1 and >5 years old in the group,and there was no significant difference between the two groups.The levels of serum PCT,CRP and WBC in bacterial infection group were significantly higher than those in virus infection group,the level of CRP in mycoplasma pneumoniae infection group was significantly higher than that in virus infection group,the levels of PCT and WBC in patients with bacterial infection were significantly higher than those in Mycoplasma infection group,the difference was statistically significant(P<0.05).There was no significant difference in CRP level between the two groups.The sensitivity and specificity of CRP> 0.05ng/mL,CRP> 6mg/L and WBC>10×109/L were 91.07％and 90.78％respectively.The positive predictive value was 87.95％,negative predictive value of 90.78％,compared to CRP and WBC diagnosis of sensitivity,specificity were significantly increased.Conclusion When the clinical diagnosis of infection in children can be diagnosed,the first application of WBC for testing,to be initially screening,followed by CRP and pathogen detection of the disease to conduct a comprehensive assessment and identification.

ObjectiveTo assess the diagnostic value of preoperative lymphoscintigraphy for lateral lymph node metastasis in low rectal cancer. MethodsFrom May 1999 to March 2001, pelvic and lower abdominal lymphoscintigraphy with 99mTc sulfur colloid was performed on 32 patients with proven colorectal cancer one day prior to operation. Among these patients were 27 rectal cancers, 3 sigmoid cancers and 2 colon cancers. Fifteen cases of rectal cancer with the tumor located at or below the peritoneal reflection received extended lymphadenectomy with lateral dissection (D3 lymphadenectomy). The result of lymphoscintigrams was correlated with histologic lateral node examination. Results The image ratio of pararectal nodes, obturator nodes, and internal iliac aorti lymph trains was 69%, 91%, and 100% respectively. In 15 patients receiving D3 lymphadenectomy, 10 had negative lymphoscintigrams whereas 5 had positive image, and the lateral pathology positive rate was 13%(2/15). Analysis of these results revealed the sensitivity (100%), specificity (77%) and accuracy (80%) of this diagnostic method. ConclusionPelvic and lower abdominal lymphoscintigraphy with 99mTc sulfur colloid could demonstrate the lateral lymph node drainage of low rectal cancer, and the correlation with postoperative histologic lateral node examination was high enough to enable surgeons to adopt an individualized surgical approach.