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Plethysmography Opto-electronic and Asthma

NCT01784146 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 27

Last updated 2013-02-05

No results posted yet for this study

Summary

Objective: To assess the influence of nebulization with bronchodilators carried by the heliox coupled to PEP in the distribution of compartimental lung volumes in asmathic adults and to correlate with pulmonary function data. Methods: A controlled randomized trial involving 27 patients divided into four groups: heliox + PEP, oxygen + PEP, heliox and oxygen. After the initial evaluation, it was placing 89 reflective markers attached to the surface of the trunk and images acquired by optoelectronic plethysmography (OEP) of six cameras. Three slow vital capacity maneuvers and quiet breathing regarded as phase control. After the control phase, all patients underwent nebulization with a distribution noninvasive system, semi-closed using 10 drops of Fenoterol Bromide and 20 drops of Ipratropium.

Conditions

Interventions

OTHER

Oxygen

For inhalation of oxygen, we used a noninvasive delivery system, semi - closed (Figure 3) consisting of a non-toxic face mask with two unidirectional valves - inspiratory and expiratory branch - connected to the nebulizer (Airlife Misty Neb, Baxter; Valencia, CA, USA). In the inspiratory branch, a reservoir bag (Hudson RCI, USA) with capacity of 2.5 L was connected, in order to avoid dilution of the gas. This skin was fixed to the patient's face to prevent leakage and to maintain adequate pressurization and improved patient compliance to the PEEP. The nebulizer was fed by a flow of 8 l / min of oxygen.

OTHER

Heliox

For inhalation of heliox, we used a noninvasive delivery system, semi - closed consisting of a non-toxic face mask with two unidirectional valves - inspiratory and expiratory branch - connected to the nebulizer (Airlife Misty Neb, Baxter; Valencia, CA, USA). In the inspiratory branch, a reservoir bag (Hudson RCI, USA) with capacity of 2.5 L was connected, in order to avoid dilution of the gas. This skin was fixed to the patient's face to prevent leakage and to maintain adequate pressurization and improved patient compliance to the PEEP. The nebulizer was fed by a 11 l / min of heliox for the heliox group in accordance with a protocol of Hess et al.

OTHER

PEEP

PEEP supplied was 10 cm H2O through valve (Vital Signs,Totowa, USA) attached to the expiratory branch.

Sponsors & Collaborators

  • Universidade Federal de Pernambuco

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2009-06-30
Primary Completion
2009-06-30
Completion
2009-11-30

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 NCT01784146 on ClinicalTrials.gov