Detection of pathogens and treatment of children with severe pneumonia

Abstract

Objective To discuss pathogens findings in children with severe pneumonia. Methods Bacteria was detected by using sputum culture and blood culture in sterile culture media. Viruses and atypical pathogenic antibodies were detected by using indirect immunofluorescence. Influenza A (H1N1) virus RNA were tested using RT-PCR. According to the results of bacterial culture and drug sensitive test, we can guide the use of antibiotics, and individualize treatment was carried out, including anti-inflammatory, organ function support. Results Bacteria was found in 69 children by using sputum culture. Gram negative bacteria accounted for 57.47%. Gram positive bacteria accounted for 42.53%. Escherichia coli (14.94%), Haemophilus influenzae (20.96%) and klebsiella pneumoniae (13.79%) were the main strains of Gram negative bacteria, Staphylococcus aureus (21.84%) and Streptococcus pneumonia (16.1%) were the main strains of Gram positive bacteria. Bacteria was found in 7 (8.00%) children by using blood culture. Virus were identified in 11 out of 123 patients, including 2 cases of respiratory syncytial virus antibody positive, 2 cases of adenovirus antibodies positive, 4 cases of influenza B virus antibody positive, 2 cases of parainfluenza virus antibody positive and influenza A (H1N1) virus from only one case, Mycoplasma pneumonia agents were identified in 8 patients. Eighty-nine children (72.36%) complicated with sepsis, 85 children (69.11%) with respiratory failure, 48 children (39.02%) with gastrointestinal dysfunction, 32 children (26.02%) with heart failure, 18 children (14.63%) with septic shock, 13 cases (10.57%) with toxic encephalopathy, 5 children (4.07%) with disseminated intravascular coagulation. Among them, 17 children (13.82%) complicated with multiple organ dysfunction syndrome. In the 123 children with severe pneumonia, 46 cases (37.4%) were cured, 73 cases (59.35%) improved, and 4 cases died (3.25%) with critical multiple organ dysfunction syndrome. Conclusion The detection rate of pathogen is high in this study. We should pay more attention to individualize therapy for complication, so that the cure rate could be increased. Key words: Severe pneumonia; Pathogen; Complication; Children