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Respiratory Physiotherapy After Cardiac Surgery

This study has been completed.
Information provided by (Responsible Party):
Juliana Flávia de Oliveira, Federal University of Rio de Janeiro Identifier:
First received: January 16, 2012
Last updated: January 19, 2012
Last verified: January 2012

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.

Condition Intervention
Functional Disturbance Following Cardiac Surgery
Behavioral: Breath Stacking

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Inspiratory Volume and Muscle Recruitment During Breath-stacking and Incentive Spirometry Techniques in Postoperative Cardiac Patients

Resource links provided by NLM:

Further study details as provided by Universidade Federal do Rio de Janeiro:

Primary Outcome Measures:
  • Inspiratory volume and muscle recruitment during breath-stacking and incentive spirometry techniques in postoperative cardiac patients [ Time Frame: Within 2 days after cardiac surgery ]

Enrollment: 16
Study Start Date: March 2009
Study Completion Date: December 2011
Primary Completion Date: February 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Incentive spirometry Behavioral: Breath 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.
Other Name: respiratory exercises
No Intervention: Breath Stacking

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.

Ages Eligible for Study:   50 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • patients submitted to myocardial revascularization surgery

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.
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Please refer to this study by its identifier: NCT01513642

Federal Bonsucesso Hospital
Rio de Janeiro, Brazil, 21041030
Sponsors and Collaborators
Universidade Federal do Rio de Janeiro
Study Director: Cristina Dias, PhD Centro Universitário Augusto Motta
  More Information

Responsible Party: Juliana Flávia de Oliveira, Inspiratory Volume and Muscle Recruitment During Breath-stacking and Incentive Spirometry Techniques in Postoperative Cardiac Patients., Federal University of Rio de Janeiro Identifier: NCT01513642     History of Changes
Other Study ID Numbers: oliveira1
Study First Received: January 16, 2012
Last Updated: January 19, 2012

Keywords provided by Universidade Federal do Rio de Janeiro:
cardiac surgery
breath Stacking

Additional relevant MeSH terms:
Pathologic Processes processed this record on March 27, 2017