Neuroprotective Study of Electroacupuncture Pretreatment in Patients Undergoing Cardiac Surgery

Air Force Military Medical University of People's Liberation Army

Status

Completed

Conditions

Brain Injuries

Stroke

Treatments

Procedure: Electroacupuncture pretreatment

Procedure: non electroacupuncture stimulation

Study type

Interventional

Funder types

Other

Identifiers

NCT01020266

XJMZK015

Details and patient eligibility

About

The purpose of this study is to evaluate the neuroprotective effect of electroacupuncture pretreatment in patients undergoing cardiac surgery as an preventive sequela in a randomized and controlled clinical trial. In addition, to investigate the role of inflammatory responses in the precess of the protection.

Full description

Heart valve replacement surgery has been proved to be an effective method in treating both regenerative and rheumatic valve disease. Current studies showed that cardiopulmonary bypass (CPB) and operation related cerebral injury is associated with worse patient morbidity and mortality after elective valve replacement surgery. Recently, Electroacupuncture (EA) pretreatment was proved to produced cerebral protective effects by mimicking ischemic preconditioning in animal models. However, the evidence that EA pretreatment can improve the clinical outcomes such as mortality and morbidity, is still lacking. The investigators perform a randomized controlled study to evaluate that EA pretreatment can improve the outcomes of cardiac surgery.

Purpose:

The purpose of this study is to examine if EA pretreatment can decrease the mortality and postoperative cerebrovascular complications in patients undergoing cardiac surgery. The effect will be assessed by mortality, scores of neurological defect, post operative cognitive dysfunction and stroke.

Methods:

Study patients will be randomized to cardiac surgery with EA pretreatment or conventional cardiac surgery in the Department of cardiovascular surgery, Xijing Hospital. EA pretreatment is performed at Baihui acupoint 30 min per day 5 consecutive days before the heart valve replacement surgery．Primary study outcome is cerebrovascular complications within 6 postoperative months. Secondary outcomes include the S-100B and NSE blood level measured during the first 72 hours of surgery follow-up, the several cytokines, including TNF-a, IL-8, IL-6, IL-10 and HMGB-1 blood level measured during the first 7 days of surgery follow-up, all cardiovascular haemodynamic parameters as measured by a pulmonary artery catheter, the length of intensive care unit (ICU) stay and length of postoperative hospital stay.

Enrollment

300 estimated patients

Sex

All

Ages

40 to 65 years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

This study enrolls a group of 40-65years patients who have heart valve disease who need valve replacement.

Inclusion Criteria:

patients who have the indication for aortic or mitral valve replacement
patients would like to accept the follow-up and sign the informed consent
patients with heart function of NYHA I-III degree.

Exclusion Criteria:

pregnant or nursing women
comorbid with coronary artery disease
patients with heart function of NYHA IV degree
renal dysfunction with serum creatinine level>or=2mg/dl(177umol/L)
anticipated life span < 12 months
enrollment in other clinical trials at the same time not reaching the primary endpoint and probably interference the present trial.