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CompletedNCT01513642Updated Jan 20, 2012

Respiratory Physiotherapy After Cardiac Surgery

An interventional study of Breath Stacking in Functional Disturbance Following Cardiac Surgery, sponsored by Universidade Federal do Rio de Janeiro. Completed at 1 site in Brazil. Open to participants aged 50 Years to 70 Years. Per ClinicalTrials.gov, last updated 2012-01-20.

Sponsored by Universidade Federal do Rio de Janeiro · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
16
Allocation
Randomized
Ages
50 Years to 70 Years
Sex
All
01

Study summary

Although incentive spirometry is commonly used to avoid pulmonary complications in cardiac surgery patients, the breath-stacking technique has been proposed as an alternative to increase pulmonary volumes in the post-operative period.

Objective: To compare inspiratory volume and electromyographic activity of respiratory muscles during breath stacking technique and incentive spirometry in patients undergoing cardiac surgery.

Read the detailed description

The purpose of the present study are:

  1. to evaluate and compare the inspiratory volume during the course of Breath Stacking and Incentive Spirometry techniques in patients submitted to myocardial revascularization surgery.
  2. to compare the electromyographic activity of the scalene, sternocleidomastoid (SCM) and diaphragm muscles during both techniques.
02

Conditions studied

  • Functional Disturbance Following Cardiac Surgery

Keywords

  • physiotherapy
  • cardiac surgery
  • breath Stacking
03

In context

Lead sponsor

Universidade Federal do Rio de Janeiro is the lead sponsor of 120 studies on the registry; 11 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
50 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • patients submitted to myocardial revascularization surgery

Exclusion criteria

Exclusion Criteria:

  • cognitive impairment or incoordination to perform IS
  • face mask intolerance during BS
  • level of consciousness incompatible to perform IS
  • hemodynamic complications [arrhythmia, intraoperative myocardial infarction, major blood loss (defined as a loss of ≥20% of total blood volume), mean arterial pressure \<70 mmHg and reduce cardiac output requiring the use of an intra-aortic balloon pump or vasoactive drugs)
  • intubation for more than 72 h after admission to the Intensive Care Unit
  • the need for reintubation.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
16 participants (actual)

Study arms

  • Other
    Incentive spirometry

    Behavioral: Breath Stacking

  • No intervention
    Breath Stacking

Interventions

  • BehavioralBreath Stacking

    To perform the BS maneuver, a silicone mask containing a one-way valve was attached to the patient's face. Once the mask was adjusted to allow only inspiration (the expiratory branch remained occluded), the patient was asked to make successive inspiratory efforts during 20 seconds.

    Also known as: respiratory exercises

06

What researchers measure

Primary outcomes

  1. Inspiratory volume and muscle recruitment during breath-stacking and incentive spirometry techniques in postoperative cardiac patients

    Time frame: Within 2 days after cardiac surgery

07

Study locations

1 site
  • Federal Bonsucesso Hospital
    Rio de Janeiro, 21041030, Brazil
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 20, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01513642
Lead sponsor
Universidade Federal do Rio de Janeiro
Responsible party
Juliana Flávia de Oliveira (Inspiratory Volume and Muscle Recruitment During Breath-stacking and Incentive Spirometry Techniques in Postoperative Cardiac Patients., Universidade Federal do Rio de Janeiro) — Principal investigator
First posted
Jan 20, 2012
Start date
Mar 2009
Primary completion
Feb 2010
Completion
Dec 2011
Last update
Jan 20, 2012

Study contacts

Cristina Dias, PhD
study director · Centro Universitário Augusto Motta

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2012. You cannot join it, but the record below documents what was studied.

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