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COPD AND ASSESSMENT OF RADIOLABELED AEROSOL DURING NONINVASIVE VENTILATION

NCT02247856 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 9

Last updated 2014-09-25

No results posted yet for this study

Summary

Background: Beneficial effects from noninvasive ventilation (NIV) in acute COPD are well-established, but couple to nebulization is still challenging. Aim: To compare radioaerosol pulmonary deposition and radioaerosol mass balance in the different compartments (pulmonary and extrapulmonary) using vibrating mesh nebulizer (VMN) and jet nebulizer (JN) coupled to NIV.Methods: It was a crossover study involving 9 stable moderate to severe COPD randomly allocated for both phases of the study: Phase 1(NIV+MN,n=9) and phase 2(NIV+JN,n=9). Bronchodilators were delivered during NIV using a facemask (pressures of 12 cmH2O and 5 cmH2O - inspiratory and expiratory, respectively). Radioactivity counts were performed using a gamma camera and regions of interest(ROIs) were delimited. We determine aerosol mass balance from the lungs, upper airways, stomach, nebulizer, circuit, inspiratory and expiratory filters, and mask as a percentage.

Conditions

Interventions

OTHER

Noninvasive ventilation

Bilevel positive pressure (BiPAP Synchrony, Respironics®, Murrysville, Pennsylvania, USA) was applied through face mask (Comfort Full 2, Respironics®, Murrysville, Pennsylvania, USA) attached with straps and pressure adjusted were 12 cmH2O of inspiratory pressure and 5 cmH2O of expiratory pressure after a period of adaptation before beginning the procedure to avoid ventilator-patient asynchrony

DEVICE

Jet Nebulizer

Both nebulizers were charged with 2.5 mg of salbutamol and 0.25 mg of ipratropium bromide and 3 mL of saline solution was added to complete 3 Ml. JN (Mist yMax, Air Life, Yorba Linda, USA) was positioned in the circuit using a "T" piece, particle size generation in a 5 µm range (according to the manufacturer information) and flow oxygen tritated at 8 L/min

DEVICE

Vibrating Mesh Nebulizer (VMN)

Both nebulizers were charged with 2.5 mg of salbutamol and 0.25 mg of ipratropium bromide and 3 mL of saline solution was added to complete 3 Ml. VMN (Aeroneb Solo, Galway, Ireland) was positioned in the mask using an elbow (Elbow Kit, Respironics®, Murrysville, Pennsylvania, USA), particle size generation in a 1 µm and connected to electrical energy.

Sponsors & Collaborators

  • Universidade Federal de Pernambuco

    collaborator OTHER

  • Daniella Cunha Brandao

    lead OTHER

Principal Investigators

  • Valdecir G Filho, PhD · Universidade Federal de Pernambuco

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-01-31
Primary Completion
2013-01-31
Completion
2013-03-31

Countries

  • Brazil

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02247856 on ClinicalTrials.gov