Supplementary Table: Evidence for Complicated Pneumonia Algorithm based on 2005 British Thoracic Society Guidelines BTS Recommendations Level of Evidence1 CPC Decision D Concur D Concur D Partially concur D Concur C Concur D Concur Comment, or Rationale if CPC Differed from BTS References3 Clinical Picture All children with parapneumonic effusion or empyema should be admitted to hospital If a child does not improve within 48 hours after admission for pneumonia, parapneumonic effusion/empyema must be excluded. Diagnostic Imaging Posteroanterior or anteroposterior radiographs should be taken; there is no role for a routine lateral radiograph. Ultrasound should be used to confirm the presence of a pleural fluid collection. Ultrasound should be used to guide thoracocentesis or drain placement. Chest CT scans should not be performed routinely. Lateral decubitus radiograph may be useful in some cases, but should not be done if it will delay in treatment. Prefer ultrasound if available, otherwise CT scan Prefer ultrasound if available, otherwise CT scan In some cases, CT still has a role, but can be performed after U/S for initial fluid collection 39 3, 27, 38, 41-44, 49 40, 45-47 3, 27, 38, 41-44, 48-52 Diagnostic Microbiology Blood cultures should be performed in all patients with parapneumonic effusion. When available, sputum should be sent for bacterial culture. Concur Although cultures may be negative, they have high specificity when positive 1, 2, 6-8, 10-18, 36, 37 D Concur Induced sputum may be considered if necessary but should not delay treatment 20 C Concur D Diagnostic Analysis of Pleural Fluid Pleural fluid must be sent for microbiological analysis including Gram stain and bacterial culture. 23, 24 Aspirated pleural fluid should be sent for differential cell count. Tuberculosis and malignancy must be excluded in the presence of pleural lymphocytosis. If there is any indication the effusion is not secondary to infection, consider an initial small volume diagnostic tap for cytological analysis, avoiding general anaesthesia/sedation whenever possible. Biochemical analysis of pleural fluid is unnecessary in the management of uncomplicated parapneumonic effusions/empyema. D Concur 27, 29 C Concur 24, 25 D Concur D Concur 9, 26, 30-34 Diagnostic Bronchoscopy There is no indication for flexible bronchoscopy and it is not routinely recommended. D Disagree Pulmonary team will make decision regarding bronchoscopy based on history and clinical presentation Disagree Initial involvement of infectious diseases and pediatric surgery; pulmonologist involved if chronic pulmonary condition Referral to a Tertiary Center A pediatric pulmonologist should be involved early in the care of all patients requiring chest tube drainage for a pleural infection. D Conservative Management (antibiotics + simple drainage) Effusions which are enlarging and/or compromising respiratory function should not be managed by antibiotics alone. Give consideration to early active treatment as conservative treatment results in prolonged duration of illness and hospital stay. Repeated Thoracentesis If a child has significant pleural infection, a drain should be inserted at the outset and repeated taps are not recommended. D Concur D Concur D Concur 3, 53 Antibiotics All cases should be treated with intravenous antibiotics and must include cover for Streptococcus pneumoniae. Broader spectrum cover is required for hospital acquired infections, as well as those secondary to surgery, trauma, and aspiration. Where possible, antibiotic choice should be guided by microbiology results. Oral antibiotics should be given at discharge for 1–4 weeks, but longer if there is residual disease. Chest Drains2 Intrapleural Fibrinolytics Intrapleural fibrinolytics shorten hospital stay and are recommended for any complicated parapneumonic effusion (thick fluid with loculations) or empyema (overt pus). There is no evidence that any of the three fibrinolytics are more effective than the others, but only urokinase has been studied in a randomized controlled trial in children so is recommended. Urokinase should be given twice daily for 3 days (6 doses in total) using 40 000 units in 40 ml 0.9% saline for children weighing 10 kg or above, and 10 000 units in 10 ml 0.9% saline for children weighing under 10 kg. Surgery Failure of chest tube drainage, antibiotics, and fibrinolytics should prompt early discussion with a thoracic surgeon. Patients should be considered for surgical treatment if they have persisting sepsis in association with a persistent pleural collection, despite chest tube drainage and antibiotics. D Concur 54, 55 D Concur 54, 55 B Concur 3 D Partially Concur Unclear how “residual disease” is interpreted; do not need to treat until radiograph is normal D Concur Summation of 20 separate items B Concur See comments on VATS versus fibrinolytic therapy in Methods and Discussion Sections B Updated A new randomized prospective 56 study in children utilized alteplase B Concur D Partially concur D Partially concur 27, 56-64 Surgical consultatation early in presentation based on radiographic evidence 27, 56-64 VATS is intervention of choice over elective drain/chest tube placement at Organized empyema in a symptomatic child may require formal thoracotomy and decortication. D Partially concur A lung abscess coexisting with an empyema should not normally be surgically drained. D Concur D Concur D Concur D Concur D Concur D Concur CNMC due to sedation and location of procedure (operating room); cost advantage of fibrinolytics with chest tube is negligible at CNMC due to these issues. Other Management Antipyretics should be given. Analgesia is important to keep the child comfortable, particularly in the presence of a chest drain. Chest physiotherapy is not beneficial and should not be performed in children with empyema. Early mobilization and exercise is recommended. Secondary scoliosis noted on the chest radiograph is common but transient; no specific treatment is required but resolution must be confirmed. Follow Up Children should be followed up after discharge Outpatient follow-up more until they have recovered completely and their D Concur extensively described in CPC chest radiograph has returned to near normal. algorithm Underlying diagnoses—for example, immunodeficiency, cystic fibrosis—may need D Concur to be considered. 1 Levels range from A (highest) to D (lowest), according to 2005 BTS Guidelines [5], and SIGN grading system [65]. 2 This section consisted of standardized procedural details, summarized as evidence level D. 3 References provide background support for CPC decisions. BTS = British Thoracic Society; CPC = Complex Pneumonia Committee References 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. Hardie, W., et al., Pneumococcal pleural empyemas in children. Clin Infect Dis, 1996. 22(6): p. 1057-63. Freij, B.J., et al., Parapneumonic effusions and empyema in hospitalized children: a retrospective review of 227 cases. 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