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Cardiac responses during rehabilitation in patients undergoing cardiac surgery

Study of cardiac autonomic modulation and pulmonary function in patients undergoing coronary artery bypass grafting and physiotherapy program: phase I of cardiac rehabilitation. - : Cardiac Autonomic Responses Exercise-Induced

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-5d877q
Enrollment
Unknown
Registered
2012-04-04
Start date
2011-06-01
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

patients undergoing coronary artery bypass surgery, exercise autonomic responses

Interventions

Postoperatively, the patients of LVF normal group (LVFN, n=23) and the patients of LVF reduced group (LVFR, n=21)followed the supervised once-daily physiotherapy program (in the afternoon) of early mo
other
Z50.0
G11.427.590.530.568.900

Sponsors

Universidade Federal de São Carlos
Lead Sponsor
Irmandade Santa Casa de Misericórdia de Araraquara
Collaborator

Eligibility

Age
40 Years to 80 Years

Inclusion criteria

Inclusion criteria: Coronary artery disease (CAD) Elective coronary artery bypass surgery (CABG) carried out with cardiopulmonary bypass (CPB).

Exclusion criteria

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.

Design outcomes

Primary

MeasureTime frame
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

MeasureTime frame
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).—

Countries

Brazil

Contacts

Public ContactRenata Mendes

Universidade Federal de São Carlos

mendesrg@hotmail.com16-33518952

Outcome results

None listed

Source: REBEC (via WHO ICTRP)