Transcutaneous Electrical Nerve Stimulation Improves Vascular Conductance After Coronary Artery Bypass Graft Surgery (TEBCABG)
Acute Myocardial Infarction
About this trial
This is an interventional treatment trial for Acute Myocardial Infarction focused on measuring exercise, neuromodulation, blood flow, exercise capacity
Eligibility Criteria
Inclusion Criteria:
- a previous history of more than 1 vessel coronary artery disease,
- lifelong abstinence from tobacco, and
- formal indication for CABG, according to established guideline.
Exclusion Criteria:
- Patients older than 70 years of age, with chronic renal failure, or with unstable angina in the 48 h prior to CABG, moderate or severe valve disease, complex cardiac arrhythmias, stroke, and/or inability to exercise the lower limbs.
Sites / Locations
- Hospital de Clinicas de Porto Alegre
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
TENS CABG
P-TENS CABG
Eligible patients will be randomized to a transcutaneous electrical nerve stimulation program (TENS; n = 20) or to placebo-TENS (P-TENS; n = 18). All patients were followed by their own physicians, received routine nursing assistance, and were visited daily by one of the investigators, but P-TENS group will be not exposed to any specific electrical stimulation or motor physical intervention.
Patients will be treated with placebo-TENS (P-TENS) condition for 5 days (4 times/day; 30 min/session) applied on cervical region (C7-T4). P-TENS device underwent modifications in its internal programming: the control capacitor of the time constant was changed and the active time between pulses was modified from 330 milliseconds to 33 seconds, in order to prevent an analgesic effect (33).