Respiratory Physiotherapy After Cardiac Surgery

January 19, 2012 updated by: Juliana Flávia de Oliveira, Universidade Federal do Rio de Janeiro

Inspiratory Volume and Muscle Recruitment During Breath-stacking and Incentive Spirometry Techniques in Postoperative Cardiac Patients

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

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.

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
      • Rio de Janeiro, Brazil, 21041030
        • Federal Bonsucesso Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: 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 Names:
  • respiratory exercises
No Intervention: Breath Stacking

What is the study measuring?

Primary Outcome Measures

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

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Universidade Federal do Rio de Janeiro

Investigators

  • Study Director: Cristina Dias, PhD, Centro Universitário Augusto Motta

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2009

Primary Completion (Actual)

February 1, 2010

Study Completion (Actual)

December 1, 2011

Study Registration Dates

First Submitted

January 16, 2012

First Submitted That Met QC Criteria

January 19, 2012

First Posted (Estimate)

January 20, 2012

Study Record Updates

Last Update Posted (Estimate)

January 20, 2012

Last Update Submitted That Met QC Criteria

January 19, 2012

Last Verified

January 1, 2012

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • oliveira1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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