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Published on: February 23, 2014
[Invasive pneumococcal pneumonia in children 0-24 months old: does bacterial resistance affect outcome]
M C Pírez García1, G Giachetto Larraz, C Romero Rostagno
1Clínica Pediátrica, Hospital Pediátrico, Centro Hospitalario Pereira Rossell, Montevideo, Uruguay. mcpirez@yahoo.com
Insights
Penicillin-resistant Streptococcus pneumoniae did not impact pneumonia outcomes in young Uruguayan children. This study found no significant differences in complications or hospital stay for children with susceptible versus resistant strains.
Area of Science:
- Pediatrics
- Infectious Diseases
- Microbiology
Background:
- Community-acquired bacterial pneumonia is a major cause of illness and death in Uruguay.
- Streptococcus pneumoniae is the primary pathogen, with higher severity in children under two.
- The impact of pneumococcal penicillin resistance on pneumonia outcomes remains unclear.
Purpose of the Study:
- To compare outcomes in children aged 0-24 months with invasive pneumococcal pneumonia.
- To assess the effect of penicillin-susceptible versus penicillin-resistant S. pneumoniae on disease severity and hospital stay.
Main Methods:
- A retrospective study included 168 children (0-24 months) hospitalized with invasive pneumococcal pneumonia between 1998 and 2005.
- Penicillin susceptibility was determined by Minimum Inhibitory Concentration (MIC).
- Outcomes assessed included empyema, sepsis, septic shock, mechanical ventilation, death, and length of hospital stay.
Main Results:
- Of 168 children, 90 had penicillin-susceptible S. pneumoniae and 78 had reduced susceptibility.
- Groups were comparable in age, comorbidities, nutritional status, and initial antibiotic treatment.
- No significant differences were observed in clinical outcomes or hospital stay duration between the groups.
Conclusions:
- Penicillin resistance in S. pneumoniae did not adversely affect the clinical outcomes of invasive pneumonia in this cohort of young children.
- These findings suggest that current treatment approaches may be effective despite rising resistance levels.
Introduction:
In Uruguay community acquired bacterial pneumonia is a significant cause of morbidity and mortality. S. pneumoniae is the most frequent agent. The disease is more severe in children less than two years old. The relationship between pneumococcal penicillin resistance and outcome is still an unresolved problem.
Objectives:
To compare the outcome of children 0 to 24 months old hospitalized in the Hospital Pediátrico-Centro Hospitalario Pereira Rossell, with invasive pneumococcal pneumonia caused by S. pneumoniae susceptible and resistant to penicillin.
Patients And Methods:
Children 0 to 24 months old with invasive pneumococcal pneumonia, admitted between January 1st 1998 and December 31st 2005 were included. Susceptibility to penicillin was defined as a MIC < 0.06 microg/ml, reduced susceptibility was defined as a MIC of 0.1 to 1 microg/ml (intermediate) and as a MIC >or= 2 microg/ml (resistant). Outcome was evaluated with the following criteria: empyema, sepsis, septic shock, mechanical ventilation, and death. Length of hospital stay and outcome were compared in both groups.
Results:
Inclusion criteria were met by 168 children. S. pneumoniae was susceptible to penicillin in 90 children and with reduced susceptibility in 78. Both groups were similar in age, comorbidity, nutritional status and initial antibiotic treatment. There were no significant differences in outcome and length of hospital stay.
Conclusions:
S. pneumoniae resistance to penicillin did not affect the outcome of pneumonia in this group of children.
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