Breath and Air Stacking on Respiratory Mechanics in Tracheostomized Patients

Brazilian Institute of Higher Education of Censa

Status: Completed

Conditions: Lung Infection; Mechanical Ventilation

Treatments: Procedure: Breath Stacking; Procedure: Air Stacking

Study type: Interventional

Funder types: Other

Identifiers

NCT04012489

Air and Breath Stacking

Details and patient eligibility

About

The researchers hypothesized that the aid of the resuscitator by the technique Air Stacking increase lung volume, promoting increased lung compliance and improvement of the ventilatory pattern. In addition, Air Stacking does not depend on patient collaboration. The objective of this study was to compare the effects of breath stacking and air stacking techniques on respiratory mechanics and ventilatory pattern in patients admitted to the ICU

Enrollment: 20 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients without mechanical ventilation for more than 72 hours
• Mucus hypersecretion (defined as the need for suctioning < 2-h intervals)

Exclusion criteria

• bronchospasm.
• Pleural effusion or pneumothorax undrained.
• Bronchopleural or tracheoesophageal fistula.
• Neuromuscular disease.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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20 participants in 2 patient groups

Breath Stacking

Active Comparator group

Description:

Breath stacking: patients were connected to a unidirectional valve coupled to artificial airway (tracheostomy), with bacteriological filter. The ventilator was coupled to the unidirectional valve to measure inspiratory volume mobilized in each cycle and a connection to adapt a manometer. The patient performed successive inspirations for a maximum period of 30 seconds or until unidirectional valve opening or volume increase was observed for 2 consecutive efforts. Ten cycles of the technique were performed, with an interval of 30 seconds.

Treatment:

Procedure: Breath Stacking

Air Stacking

Experimental group

Description:

Air stacking: the same system of monitoring and adaptation of the ventilometer and manometer was carried out. A manual resuscitator coupled to a unidirectional valve was used, both connected to the tracheostomy, with a filter interface. Slow and successive inspirations were performed through slow compression of the resuscitator until the maximum inspiratory pressure reached 40 cmH2O. Ten cycles of the technique were performed, with an interval of 30 seconds.

Treatment:

Procedure: Air Stacking