Otorrhoea via ventilation tubes in adults and children

Area of Science:

• Otolaryngology
• Pediatric Otology

Background:

• Ventilation tubes, commonly known as grommets, are frequently inserted to manage middle ear effusions.
• Post-insertion discharge (otorrhea) is a known complication, but its incidence and associated factors require further elucidation.

Purpose of the Study:

• To prospectively investigate the incidence of ventilation tube discharge in children and adults.
• To identify risk factors associated with ventilation tube discharge, particularly in the pediatric population.
• To evaluate the association between discharge and specific conditions like cholesteatoma.

Main Methods:

• Prospective investigation involving 127 children and 41 adults undergoing ventilation tube insertion.
• Data collection on episodes of discharge during the tube's indwelling period.
• Statistical analysis, including Chi-squared tests and multiple regression, to identify risk factors.

Main Results:

• 14% of children and 27% of adults experienced discharge.
• In children, a history of atopy was a significant risk factor for discharge (P < 0.03).
• Two cases of cholesteatoma were identified among patients with discharge; mastoid exploration is recommended for persistent otorrhoea.

Conclusions:

• Ventilation tube discharge is a notable complication in both pediatric and adult populations.
• Atopy is a significant predictor of discharge in children receiving ventilation tubes.
• Persistent otorrhoea warrants further investigation, potentially including mastoid exploration, to rule out underlying pathology such as cholesteatoma.