Neuroprotective Study of Electroacupuncture Pretreatment in Patients Undergoing Cardiac Surgery

June 23, 2015 updated by: Xijing Hospital

Clinical Trial of Cerebral Protective Effects of Repeated Electroacupuncture Pretreatment in Heart Valve Replacement Surgery

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed 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.

Study Type

Interventional

Enrollment (Anticipated)

300

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Shaanxi
      • Xi'an, Shaanxi, China, 710032
        • Xijing Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Sham Comparator: Control
Procedure: non electroacupuncture stimulation
The same procedure as electroacupuncture except stimulation
Active Comparator: Electroacupuncture
Procedure: Electroacupuncture pretreatment
According to the theory of traditional Chinese medicine, Baihui(GV20) acupoint was chosen and the acupuncture points were identified according to traditional anatomical localization. Once insertion was made at the acupuncture point, the needle was stimulated electrically with the intensity of 0.8-1.9 mA and frequency of 5/30 Hz for 30 min per day using an Electronic Acupuncture Treatment Instrument for 5 consecutive days before the heart valve replacement surgery．
Other Names:
  • Acupuncture
  • preconditioning
  • electric stimulation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Cerebrovascular complications and Score of neurological defect
Time Frame: before treatment, after the first treatment, 7, 28days after treatment and follow up at 6 months after treatment
before treatment, after the first treatment, 7, 28days after treatment and follow up at 6 months after treatment

Secondary Outcome Measures

Outcome Measure
Time Frame
The S-100B and NSE blood level
Time Frame: before treatment, after the last treatment, before surgery, and the first 72 hours of surgery follow-up
before treatment, after the last treatment, before surgery, and the first 72 hours of surgery follow-up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Xijing Hospital

Collaborators

Air Force Military Medical University, China

Investigators

  • Study Director: Aideng Weng, Ph.D., Xijing Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2009

Primary Completion (Actual)

September 1, 2010

Study Completion (Actual)

June 1, 2013

Study Registration Dates

First Submitted

November 22, 2009

First Submitted That Met QC Criteria

November 23, 2009

First Posted (Estimate)

November 25, 2009

Study Record Updates

Last Update Posted (Estimate)

June 25, 2015

Last Update Submitted That Met QC Criteria

June 23, 2015

Last Verified

November 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • XJMZK015

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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