Related Experiment Video
Updated: Mar 18, 2026

Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
Published on: February 23, 2014
Complicated community acquired pneumonia in childhood: Different types, clinical course, and outcome
Ira Erlichman1, Oded Breuer2, David Shoseyov2
1Department of Pediatrics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.
Insights
Pediatric community-acquired complicated pneumonia (PCACP) shows ethnic predominance. While necrotizing pneumonia is more severe, all PCACP types have favorable outcomes regardless of treatment, indicating they may represent a spectrum of the same disease.
Area of Science:
- Pediatric Pulmonology
- Infectious Diseases
- Critical Care Medicine
Background:
- Pediatric community-acquired complicated pneumonia (PCACP) incidence is rising globally.
- Understanding the distinct characteristics and outcomes of different PCACP types is crucial for effective management.
- Investigating treatment protocols' impact on PCACP outcomes is essential.
Purpose of the Study:
- To determine if different types of PCACP (parapneumonic effusion, empyema, necrotizing pneumonia) represent a single disease entity.
- To evaluate the impact of various treatment protocols on patient outcomes in PCACP.
Main Methods:
- Retrospective analysis of medical records for PCACP hospitalizations.
- Inclusion of data from three major Jerusalem hospitals between 2001-2010.
- Collection of demographic, clinical, management, and outcome data.
Main Results:
- Of 144 children, 40% had parapneumonic effusion, 40% empyema, and 20% necrotizing pneumonia.
- Bacterial origin was identified in 42%, with Streptococcus pneumoniae being most common.
- Necrotizing pneumonia cases experienced longer hospitalizations, and prior antibiotic treatment did not alter outcomes for any PCACP type.
Conclusions:
- Necrotizing pneumonia is a more severe manifestation of PCACP, associated with prolonged morbidity.
- All PCACP types demonstrate favorable outcomes upon discharge, irrespective of the treatment protocol used.
- PCACP exhibits ethnic predominance, suggesting potential genetic or environmental factors.
Abstract:
The incidence of pediatric community acquired complicated pneumonia (PCACP) is increasing. Questions addressed: Are different types of PCACP one disease? How do different treatment protocols affect the outcome?
Methods:
Retrospective analysis of medical records of PCACP hospitalizations in the three major hospitals in Jerusalem in the years 2001-2010 for demographics, clinical presentation, management, and outcome.
Results:
Of the 144 children (51% aged 1-4 years), 91% of Jewish origin; 40% had para-pneumonic effusion (PPE), 40% empyema (EMP), and 20% necrotizing pneumonia (NP). Bacterial origin was identified in 42% (empyema 79%, P = 0.009), most common S. pneumoniae (32%), group A streptococcus (9%). Patients with EMP, compared to PPE and NP, were less likely to receive prior antibiotic treatment (35% vs. 57% and 59%, respectively, P = 0.04). Mean hospitalization was longer in patients with NP followed by EMP and PPE (16.4 ± 10.6, 15.2 ± 7.9, and 12.7 ± 4.7 days, respectively), use of fibrinolysis was not associated with the outcome. All children had recovered to discharge regardless of antibiotic therapy or fibrinolysis.
Answer:
NP is a more severe disease with prolonged morbidity and hospitalization in spite of prior antibiotic treatment. All types had favorable outcome regardless of treatment-protocol. Complicated pneumonia has an ethnic predominance. Pediatr Pulmonol. 2017;52:247-254. © 2016 Wiley Periodicals, Inc.
More Related Videos
12:21A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness
Published on: September 28, 2022
08:25Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
Related Concept Videos
Pneumonia I: Introduction
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia III: Complications and Assessment
Pneumonia V: Nursing management and Prevention
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed....
Pneumonia II: Pathophysiology
Pneumonia IV: Management
Bacterial Pneumonia Treatment
For bacterial pneumonia, antibiotics serve as the cornerstone of therapy. Initial treatment often begins with empirical antibiotics, tailored to the anticipated causative organism and adjusted based on culture results. Key antibiotic choices include:
Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause: