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Published on: June 28, 2018
Impact of Ventilator-Associated Pneumonia on Clinical Outcomes in a Pediatric Intensive Care Unit: A Retrospective
Ali Hassan1, Md Tasneemul Mursalin2, Sameen Afzal3
1School of General Medicine, Asfendiyarov Kazakh National Medical University (KazNMU), Almaty, KAZ.
Insights
Ventilator-associated pneumonia (VAP) significantly increases mechanical ventilation duration, pediatric intensive care unit (PICU) stay, and mortality in resource-limited settings. Daily chlorhexidine oral care showed protective effects against VAP development.
Area of Science:
- Pediatric critical care medicine
- Infectious disease epidemiology
- Hospital-acquired infections
Background:
- Ventilator-associated pneumonia (VAP) is a significant nosocomial infection in pediatric intensive care units (PICUs).
- Its impact on clinical outcomes in resource-constrained settings remains under-researched.
- Understanding VAP's effects is crucial for enhancing patient care in these environments.
Purpose of the Study:
- To evaluate the impact of VAP on clinical outcomes in mechanically ventilated pediatric patients.
- To identify baseline factors associated with VAP development.
- To inform VAP prevention strategies in resource-limited PICUs.
Main Methods:
- Retrospective cohort study including 150 pediatric patients (1 month to 18 years) requiring mechanical ventilation for ≥48 hours.
- Patients were classified into VAP and non-VAP groups based on CDC/NHSN 2023 criteria.
- Statistical analysis included chi-square and Mann-Whitney U tests; Firth penalized logistic regression was used due to data separation.
Main Results:
- VAP developed in 33.3% (50/150) of patients.
- VAP patients experienced significantly longer mechanical ventilation (12.0 vs. 5.0 days) and PICU stay (14.0 vs. 7.0 days).
- Prior antibiotic use was universal in VAP patients (100% vs. 17%), and mortality was substantially higher (32.0% vs. 0.0%). Daily chlorhexidine oral care demonstrated a protective effect (RR=0.46).
Conclusions:
- VAP is associated with prolonged mechanical ventilation, extended PICU length of stay, and increased mortality.
- Findings highlight the need for targeted VAP prevention strategies and improved ventilatory practices in resource-limited PICUs.
- Daily chlorhexidine oral care emerges as a potentially effective preventive measure.
Abstract:
Background Ventilator-associated pneumonia (VAP) is a common nosocomial infection in pediatric intensive care units (PICUs), but its effect on clinical outcomes in resource-constrained settings is underexplored. Understanding these effects is essential for improving care. Objective Our aim is to evaluate the impact of VAP on clinical outcomes and identify baseline factors associated with VAP among mechanically ventilated pediatric patients. Methods This retrospective cohort study was conducted at the PICU of Jinnah Hospital, Lahore, from January to June 2023. Children aged 1 month to 18 years who required mechanical ventilation for at least 48 hours were included. We categorized patients into VAP and non-VAP groups based on CDC/NHSN 2023 criteria. We compared baseline characteristics and clinical outcomes. Categorical variables were analyzed using the chi-square test. Continuous variables were compared using the Mann-Whitney U test. Results Among 150 patients, 50 (33.3%) developed VAP. Patients with VAP had a significantly longer median duration of mechanical ventilation (12.0 days, IQR: 9.0-16.0) compared to non-VAP patients (5.0 days, IQR: 4.0-6.0; p < 0.001) and a longer median PICU stay (14.0 days, IQR: 10.0-18.0 vs. 7.0 days, IQR: 6.0-8.0; p < 0.001). Prior antibiotic use was documented in all 50 (100%) VAP patients compared to 17 (17.0%) in the non-VAP group (p < 0.001). Mortality was higher in the VAP group (16/50 patients, 32.0%) compared to the non-VAP group (0/100 patients, 0.0%; p < 0.001). Daily oral care with chlorhexidine was strongly protective (risk ratio = 0.46; 95% CI: 0.34-0.63). Standard multivariable logistic regression could not be performed due to the complete separation of data; therefore, Firth penalized logistic regression was performed using R. Conclusion VAP is linked to longer ventilation, extended PICU stay, and higher mortality. These findings stress the need for targeted preventive measures and improved ventilatory practices in resource-constrained PICUs.
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