When it comes to cardiovascular diseases, surgical or clinical treatment can be cited, and cardiac surgery is considered a complex and large treatment where it involves important organic repercussions that alter the physiological and hemodynamic mechanisms of patients, which can lead to a critical state postoperatively, leading to possible complications that require intensive care at that time. Respiratory complications usually occur frequently in the postoperative period of these surgeries, causing a functional lung capacity to decrease by up to 20%, which may result in atelectasis, pneumonia, pleural effusion, among others. For this reason, physiotherapy usually plays an important role in the treatment of these patients, as it helps to reduce or treat these complications, in addition to promoting motor rehabilitation of patients before myocardial revascularization surgery. For this reason, this study aims to compare the effect of conventional physiotherapy techniques with the management of thoracoabdominal rebalancing in postoperative patients of coronary artery bypass graft. This is a randomized pilot trial in which patients who underwent coronary artery bypass surgery at the Institute of Cardiology of Rio Grande do Sul participate in the study. Patients selected for the control group (conventional physiotherapy) will be exposed to respiratory physiotherapy techniques such as vibrocompression, passive manual expiratory therapy, acceleration of expiratory flow, fractional inspiration in times, diaphragmatic breaths and aspiration when necessary, and patients selected for the intervention group, will appear on the management of thoracoabdominal rebalancing as abdominal supports and / or in the ileo-costal space, inspiratory aid, release of the scapular waist, thoracic swing, release of the pectoralis major and deltoid muscles together with aspiration, if necessary.

Compare the effect of conventional physiotherapy techniques with the management of thoracoabdominal rebalancing in postoperative myocardial revascularization surgery patients. It is a randomized pilot trial in which patients who have undergone myocardial revascularization surgery at the Institute of Cardiology of Rio Grande do Sul will participate in the study.

The study will include individuals over 35 years of age who have myocardial revascularization surgery with prescribed physiotherapeutic treatment, and will be excluded from patients whose patients were intubated and / or remained in mechanics for more than hours or, still, who required non-invasive mechanical norms before or during the collection period.

The work will be submitted to the Research Ethics Committee at the Cardiology Institute of Porto Alegre (CEP-ICFUC). All study participants will receive clear explanations regarding the research, and those who accept to participate in the study voluntarily, will sign the informed consent form, in two copies, one being made available to the participant and the other to researchers. Participants will not be paid, nor will they receive any assistance during or after the end of the survey (466/12).

The benefits of this research will be given in better conducts that prevent or reduce complications and / or respiratory discomfort as well as accelerate the patient's recovery, aiming at hospital discharge more quickly.

Patients selected for the control group (conventional physiotherapy) will be exposed to respiratory physiotherapy techniques such as vibrocompression, passive manual expiratory therapy, acceleration of expiratory flow, fractional inspiration in times, diaphragmatic breaths and aspiration when necessary, and patients selected for the group intervention, will be submitted to the handling of the thoracoabdominal rebalancing as abdominal supports and / or in the ileo-costal space, inspiratory aid, scapular waist release, thoracic swing, release of the pectoralis major and deltoid muscles together with aspiration if any need.

The research presents minimal risk for the participants, which are related to the measurement of variables and / or application of conventional physiotherapy techniques such as vibrocompression, acceleration of expiratory flow, passive manual expiratory therapy that may suggest some discomfort or pain when touching the chest in a sensation of pressure and vibration.

It is expected that patients submitted to the handling of thoracoabdominal rebalancing have lower scores on the pulmonary complications scales, Downes and Raphaelly respiratory discomfort scale and, consequently, show improvement in the other variables.

Inclusion Criteria:

• The study will include individuals over 35 years of age who have undergone myocardial revascularization surgery surgery with prescribed physiotherapeutic treatment.

Exclusion Criteria:

• Patients who are intubated and / or remained on mechanical ventilation for more than 48 hours or who needed non-invasive mechanical ventilation before or during the collection period will be excluded.