Clinical Report: Spectrum of Host Susceptibility in Pediatric NTM Infections

Overview

This case series examines five pediatric patients with nontuberculous mycobacterial (NTM) infections, highlighting the diverse predisposing factors and the diagnostic utility of targeted next-generation sequencing (tNGS).

Background

Pediatric NTM infections are often misdiagnosed due to their varied clinical presentations, which can resemble other respiratory diseases. The incidence of NTM infections in children is rising globally, necessitating improved diagnostic methods.

Data Highlights

Key Findings

• All five patients had confirmed NTM infections diagnosed using tNGS.
• Pathogenic species included Mycobacterium abscessus (n = 4) and Mycobacterium paragordonae (n = 1).
• Infection sites varied, including the lungs, cervical lymph nodes, and parotid gland.
• Predisposing factors ranged from congenital anomalies to systemic immunodeficiency.
• All patients improved with individualized multidrug therapy.

Clinical Implications

The findings emphasize the importance of recognizing diverse predisposing factors for NTM infections in pediatric patients. The use of tNGS can enhance diagnostic accuracy when conventional methods are inadequate.

Conclusion

This case series highlights the complexity of pediatric NTM infections.

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