Respiratory Physiotherapy After Cardiac Surgery

Functional Disturbance Following Cardiac Surgery Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01513642
• Other study ID #: oliveira1
• Status: Completed
• Phase: N/A
• First received: January 16, 2012
• Last updated: January 19, 2012
• Start date: March 2009
• Est. completion date: December 2011

Study information

• Verified date: January 2012
• Source: Universidade Federal do Rio de Janeiro
• Contact: n/a
• Is FDA regulated: No
• Health authority: Brazil: Ministry of Health
• Study type: Interventional

Clinical Trial 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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 16
• Est. completion date: December 2011
• Est. primary completion date: February 2010
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 50 Years to 70 Years

Eligibility

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 Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Functional Disturbance Following Cardiac Surgery
• Pathologic Processes

Intervention

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.

Locations

Country	Name	City	State
Brazil	Federal Bonsucesso Hospital	Rio de Janeiro

Sponsors (1)

Lead Sponsor	Collaborator
Universidade Federal do Rio de Janeiro

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Inspiratory volume and muscle recruitment during breath-stacking and incentive spirometry techniques in postoperative cardiac patients		Within 2 days after cardiac surgery	Yes