Dynamic Ventilatory and Asymmetry of the Chest Wall During Breath Stacking and Volume-oriented Incentive Spirometer

Universidade Federal de Pernambuco

Status: Unknown

Conditions: Stroke

Treatments: Other: Incentive Spirometry; Other: Breath Stacking

Study type: Interventional

Funder types: Other

Identifiers

NCT02088125

Stroke

Details and patient eligibility

About

The purpose of the study was to analyze the effect of IS and BS on dynamics ventilatory and asymmetry of the chest wall in patients after stroke .

Full description

All volunteers were undergone to two types of pulmonary expansion therapy (PET) techniques: volume incentive spirometry (VIS) and BS.

Procedures involved two distinct phases: assessment and intervention. In the first day was performed assessment of the participants to obtain the following data: anamnesis, initial evaluation using the Ashwouth Scale, Barthel Index and Mini Mental State Examination, anthropometric data and pulmonary function using spirometry and respiratory muscle pressures.

Intervention phase was performed in two different days, each day for only one PET techniques (VIS or BS), with a minimal wash-out period of one day according to the randomization sequence. Optoelectronic Pletysmography (OEP) was recorded during quite breathing at rest and during the execution of five maneuvers form each PET technique tested.

Enrollment: 12 estimated patients

Sex: All

Ages: 20 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:Subjects with right hemiparesis due to stroke for more than three months, of both genders, most than 20 years, with scores between 1 and 3 for Ashworth Scale for upper limb, up to 85 for Index score Barthel and minimum score of 18 on the Mini Mental State Examination.

Exclusion Criteria: Facial paralysis, rheumatic or orthopedic diseases or deformities / abnormalities in the spine that could compromise the respiratory mechanics; reported respiratory conditions (asthma, chronic obstructive pulmonary disease, cystic fibrosis) or presenting spirometry with forced expiratory volume in one second (FEV1) below 80% predicted and compared VEF1/Capacitate Forced vital ≤ .7; history of recent abdominal or thoracic surgery and hemodynamic instability or pregnancy.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Double Blind

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12 participants in 2 patient groups

Incentive Spirometry

Active Comparator group

Description:

The Incentive Spirometry was characterized by the use of the incentive spirometer volume, in which volunteer used a nasal clip and was instructed to inhale slowly and deeply through the mouthpiece of the equipment from functional residual capacity to total lung capacity.

Treatment:

Other: Incentive Spirometry

Breath Stacking

Active Comparator group

Description:

Breath Stacking A mask was used with two one-way valves (inspiratory limb and expiratory limb), which was coupled to the patient's face allowing only inspiration, while the expiratory branch remained occluded for the individual only perform successive inspiratory efforts.

Treatment:

Other: Breath Stacking