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Continuous negative chest-wall pressure as therapy for severe respiratory distress in older children
Insights
Continuous negative chest-wall pressure (CNP) effectively improved oxygenation in children with severe Pneumocystis pneumonia. While some patients experienced fatal outcomes, CNP offers a non-intubative treatment option for respiratory distress.
Area of Science:
- Pediatric Pulmonology
- Critical Care Medicine
- Infectious Diseases
Background:
- Pneumocystis carinii pneumonia (PCP) causes severe respiratory distress in immunocompromised children.
- Traditional treatments often require intubation and mechanical ventilation, posing risks.
- Continuous negative chest-wall pressure (CNP) is a non-invasive ventilation method explored for respiratory support.
Purpose of the Study:
- To evaluate the efficacy and safety of CNP in treating pediatric patients with severe PCP-induced respiratory distress.
- To assess CNP's impact on oxygenation and respiratory parameters in this patient population.
Main Methods:
- A case series involving five children (4-11 years) with severe PCP.
- Application of continuous negative chest-wall pressure (CNP) for respiratory support.
- Monitoring of respiratory rate, oxygenation, and shunt fraction.
Main Results:
- Initial improvement in respiratory distress and oxygenation was observed in all patients.
- Two patients experienced progressive respiratory deterioration, leading to fatal outcomes.
- Three patients showed sustained improvement and recovered from pulmonary disease.
- CNP therapy improved arterial oxygenation without endotracheal intubation.
Conclusions:
- CNP is a viable non-invasive option for improving oxygenation in spontaneously breathing children with severe PCP.
- While effective, careful patient selection and monitoring are crucial due to potential for severe outcomes.
- CNP may reduce the need for invasive ventilation, sedation, and muscle relaxants in select pediatric cases.
Abstract:
Continuous negative chest-wall pressure (CNP) was used to treat five children, 4 to 11 years of age, who had progressively severe respiratory distress caused by Pneumocystis carinii penumonitis. After initial improvement, two patients developed progressive increases in respiratory rate, alveolar-arterial oxygen gradient, intrapulmonary right-to-left shunt, and hypoxia. The disease ended fatally in both. The remaining three patients continued to improve and recovered from their pulmonary disease. These results show that CNP therapy provides an effective means of improving arterial oxygenation in spontaneously breathing older children, just as in neonates, without the need for endotracheal intubation, prolonged sedation, and muscle relaxants.