Cardiac responses during rehabilitation in patients undergoing cardiac surgery
Not Applicable
- Conditions
- I97.1patients undergoing coronary artery bypass surgery, exercise autonomic responses
- Registration Number
- RBR-5d877q
- Lead Sponsor
- niversidade Federal de São Carlos
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- data analysis completed
- Sex
- Not specified
- Target Recruitment
- Not specified
Inclusion Criteria
Coronary artery disease (CAD)
Elective coronary artery bypass surgery (CABG) carried out with cardiopulmonary bypass (CPB).
Exclusion Criteria
Patients who had undergone coronary artery bypass surgery (CABG) without cardiopulmonar bypass (CPB) or concomitant surgery;
History of myocardial infarction < 6 months before CABG, severely depressed LVF (left ventricular ejection fraction <30%), acute significant arrhythmias, coexisting chronic obstructive pulmonary disease (COPD), autonomic neuropathy, severe non-cardiac disease;
Inability or refuse to perform the proposed protocol.
Study & Design
- Study Type
- Intervention
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Reduced heart rate variability (HRV)indices during physical exercise in hospital, but the magnitude of autonomic response different between the groups with normal and reduced ventricular function, assessed by the nonlinear properties of heart rate variability (HRV), as the complexity (irregularity) of the dynamic process of heart rate were analyzed by indices such as: - correlation dimension (CD); Shannon entropy and sample entropy; and - Poincare indices: SD1 and SD2 interpreted as a measure of both short and long-term HRV (overall HRV.
- Secondary Outcome Measures
Name Time Method Reduced heart rate variability (HRV)indices during physical exercise in hospital, but the magnitude of autonomic response different between the groups with normal and reduced ventricular function, assessed by the linear measures of HRV evaluated by calculating the following indices: - mean of RR and its standard deviation (STD RR), - integral of the RR histogram divided by the height of the histogram (RR tri) index and - baseline width of the RR histogram (TINN)and - square root of the mean squared differences of successive RR (rMSSD). <br><br>