Effects of Low Frequency Magnetic Field on Exercise Induced Angina

August 25, 2011 updated by: Aerotel Ltd

Effects of Low Frequency Electromagnetic Field on Patients With Exercise Induced Angina

The investigators have previously shown that a frequency of 15.95-16.00 Hz protects against acute myocardial infarction in rats. In the current study the investigators would like to investigate whether this frequency enables cardiac patients with exercise-induced chest pain to exercise at higher workload and heart rate. Therefore, patients will undergo two exercise stress tests, one test after being exposed to 30 minutes of the above mentioned frequency and another test after being exposed to sham (no frequency is turned ON). The investigators will measure changes in the electrocardiogram (ECG), workload, exercise time, and subjective measure of chest pain (angina).

Study Overview

Status

Unknown

Conditions

Detailed Description

Several studies have shown that low frequency electromagnetic field has biological and therapeutic potential on the human body, however, to very limited extent on the heart. In the current study cardiac patients suffering from exercise-induced-angina will undergo two consecutive stress tests, one test after being exposed for 30 minutes to the magnetic field and the other test after being exposed to placebo (magnetic field not operated). The order of which the magnet will be operated will be randomly assigned for the patients so a group of patients will be exposed to the magnetic field at their first stress test and another groups of patients will be exposed to the magnetic field at their second stress test. During resting period, and while the patients are subjected to the magnetic field, a 12 lead electrocardiogram (ECG) will be monitored. Thereafter the magnetic field and frequency will be turned off and the patients will be subjected to graded exercise stress test during which they will be monitored for ECG and blood pressure changes. Similar monitoring will be documented during the recovery period following the stress test. In addition, the patients will grade their angina score as documented during the stress test. The data will be compared between the two stress tests and to document any advantageous of the magnetic field on exercise time, workload, ECG changes and/or chest pain.

Study Type

Observational

Enrollment (Anticipated)

40

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

  • Israel
      • Tel-Hashomer, Israel, 52621
        • Cardiac Rehabilitation Institute, sheba Medical Center

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

35 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients enrolled at the Cardiac Rehabilitation Institute, sheba Medical Center

Description

Inclusion Criteria:

Patients with known exercise-induced-angina

Exclusion Criteria:

Patients that changed treatment course between the two exercise stress tests Patients that decided to drop from the second exercise stress test

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

Cohorts and Interventions

Group / Cohort
Frequency exposed patients
Patients exposed to the magnetic field with the specific frequency

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Exercise workload for a given ECG change
Time Frame: within a month from the second exercise stress test
Exercise workload wil be compared between the two tests and according with the ECG changes recorded at these two tests.
within a month from the second exercise stress test

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Angina scale
Time Frame: Within a month from the last exercise stress test
Define the angina scale obtained between the two tests at a given workload.
Within a month from the last exercise stress test

Collaborators and Investigators

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

Sponsor

Aerotel Ltd

Collaborators

Sheba Medical Center

Investigators

  • Principal Investigator: Ilan Hai, MD, Cardiac Rehabilitation Institute, sheba Medical Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

November 1, 2011

Primary Completion (Anticipated)

May 1, 2012

Study Completion (Anticipated)

October 1, 2012

Study Registration Dates

First Submitted

August 24, 2011

First Submitted That Met QC Criteria

August 25, 2011

First Posted (Estimate)

August 26, 2011

Study Record Updates

Last Update Posted (Estimate)

August 26, 2011

Last Update Submitted That Met QC Criteria

August 25, 2011

Last Verified

August 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • frequency medicine for angina

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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