Video Experimental Relacionado

Updated: Feb 6, 2026

Conducting Respiratory Oscillometry in an Outpatient Setting

Conducting Respiratory Oscillometry in an Outpatient Setting

Published on: April 8, 2022

Obstrucción reversible de las vías respiratorias en la oscilometría de impulsos en niños en edad preescolar con

Daniela Bullard Elias¹, Raouf Amin², Daniel Ignatiuk²

¹Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, Ohio, 45229, USA; Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, Ohio, 45229.

The Journal of pediatrics

|February 4, 2026

Abstracto

Objective:

To assess lung function and bronchodilator reversibility via the impulse oscillometry system (IOS) in 3-6-year-olds with bronchopulmonary dysplasia (BPD), a population historically difficult to evaluate via spirometry.

Study Design:

A retrospective review of IOS in 3-6-year-olds was conducted. Clinical data were abstracted from electronic medical records, including a modified Saint-George Respiratory Questionnaire (SGRQ) scored according to symptoms, activity, and impact.

Results:

We analyzed 103 IOS reports in 73 patients (median age 4.1 years [IQR 3.5-5.0]); of these, 52.4% were acceptable and repeatable. At least one parameter was abnormal in 78% of reports, including elevated resistance with median Z-scores for R₇ (1.8 [IQR 0.9-2.8]) and R_7-20 (1.4 [IQR 0.8-2.2]) and decreased reactance with median AX (2.6 [IQR 0.8,3.3]), F_res (1.4 IQR [.6-2.4]) and X₇ (-2.4 IQR[-3.7,--1.4]). Median Z-scores for the cohort normalized after albuterol. Improved resistance and reactance were observed on clinic follow-up IOS in children treated with inhaled corticosteroid/long-acting-beta-agonists. The cohort had increased morbidity with total SGRQ score of 12.1 [IQR 7.6-25.6]; symptom score of 32.5 (IQR 17.2-46.8), activity score of 7.6 (IQR 0-29.8) and impact score of 7.4 (IQR 0-17.1).

Conclusions:

IOS can be performed by half of preschool children with BPD and reveals abnormal lung function characterized by elevated airway resistance and decreased reactance that is bronchodilator responsive. IOS is a feasible technique to evaluate objectively the early, critical changes in respiratory health and response to medical therapy in a population where other methods are not available.

Palabras clave:

oscilometría de impulsos displasia broncopulmonar función pulmonar niños en edad preescolar vías respiratorias broncodilatadores espirometría

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