Safety of aerosol therapy in children during noninvasive ventilation with helmet and total face mask.

PURPOSE

To evaluate the consequences of using nebulized drugs in patients subjected to noninvasive ventilation (NIV) with total face mask (TFM) and helmet.

DESIGN

A descriptive analytical study of a prospective patient cohort was carried out.

AMBIT

Pediatric intensive care unit (PICU) of a tertiary hospital.

PATIENTS

Consecutive sampling was used to include all patients admitted to the PICU and requiring NIV with helmet or TFM over a period of 29 months. No patients were excluded.

INTERVENTIONS

Nebulized treatment was added according to medical criteria.

VARIABLES OF INTEREST

Independent variables were age, sex, diagnosis, disease severity, ventilation parameters and nebulized drugs (if administered). Secondary outcomes were duration and failure of NIV, and length of PICU stay.

RESULTS

The most frequent diagnoses were bronchiolitis (60.5%) and asthma (23%). Patients received NIV for a median of 43h. Nebulized drugs were administered in 40% of the cases during NIV, and no adverse effects were registered. Using Bayesian statistics, the calculated probability of suffering an adverse effect was 1.3% with helmet and 0.5% with TFM (high density 95% probability intervals). Patients with helmet and nebulized therapy were in more serious condition than those who did not receive nebulization; nevertheless, no differences were observed regarding the need to change to bilevel modality. With TFM, PICU stay was shorter for the same degree of severity (p=0.033), and the NIV failure rate was higher in patients who did not receive inhaled drugs (p=0.024).

CONCLUSIONS

The probability of suffering an adverse effect related to nebulization is extremely low when using a helmet or TFM. Inhaled therapy with TFM may shorten PICU stay in some patients.