Cardiovascular surgical procedures.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: All patients between 18 and 80 years of age; who undergo an exclusive surgical procedure of valve replacement; and are hospitalized preoperatively at the National Institute of Cardiology will be eligible for the study.
Exclusion criteria
Exclusion criteria: Patients who present in the initial evaluation will be excluded from the study; pregnancy; presence of a cardiac pacing device; intermittent cardiodesfibrillator; hearing devices; skull trauma; brain injury; status epileptics; tetanus; adult respiratory distress syndrome; chronic liver disease; chronic kidney diseases; patients taking Sulfonylurea; Glibenclamide; who have already had previous heart surgery; cognitive alterations that impede the accomplishment of the protocol.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Patients who receive Transcutaneous Nerve Stimulation in Acupuncture Points will stimulate a systemic response leading to a cardioprotective effect of this technique, evaluated by means of heart rate variability using a frequency meter, such evaluation will occur during electrostimulation and by reducing the markers of myocardial necrosis, evaluated through laboratory tests collected in the immediate postoperative period of individuals submitted to valve replacement surgery. | — |
Secondary
| Measure | Time frame |
|---|---|
| Expected outcome 1: Preoperative transcutaneous nerve electrostimulation may reduce myocardial necrosis markers in the postoperative period of patients undergoing valve replacement, as assessed by the blood concentration of Troponin 1. Such evaluation will occur with laboratories 6hs, 12hs and 24hs postoperatively;;Expected outcome 2: Transcutaneous nerve stimulation at acupuncture points may be helpful in reducing inotropes in the postoperative period of valve replacement, assessed using the inotropic score collected 6 hours, 12 hours and 24 hours postoperatively;;Expected outcome 3: Transcutaneous nerve stimulation may have influence on cardiovascular autonomic modulation through analysis of heart rate variability through the use of the Polar monitor, which will be evaluated during 40 minutes of electrostimulation with at least 24 hours before surgery;;Expected outcome 4: Preoperative transcutaneous nerve electrostimulation may reduce mortality and length of stay in intensive care patients in the postoperative period of cardiac surgery, assessed by chart analysis. Such assessment will occur on discharge from the patient. | — |
Countries
Brazil
Contacts
Instituto Nacional de Cardiologia