Treatment of Reduced Heart Rate Variability Associated With Major Depression With Electroconvulsive Therapy

NCT ID: NCT00209066

Last Updated: 2013-11-19

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 50 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 1998-11-30
• Study Completion Date: 2005-04-30

Brief Summary

The purpose of this study is to evaluate alterations in sympathetic tone in patients with major depression with and without ischemic heart disease and then to reevaluate these patients after 8 treatments with electroconvulsive therapy(ECT). We expect to support the hypothesis that HRV are pathophysiologically associated with the state of major depression. We hypothesize the following:

1. Heart rate variability (HRV) will be decreased prior to treatment of depression in comparison to post-treatment measures of HRV.

2. After 8 treatments with ECT, HRV will be increased under basal conditions.

Detailed Description

There is considerable evidence that patients with ischemic heart disease (IHD) and concurrent major depression have a less favorable prognosis than patients with IHD alone. Indeed, a number of recent studies implicate major depression in the pathophysiologic progression of cardiovascular disease as an independent risk factor, rather than a reaction to cardiovascular illness. This conclusion is supported by multiple recent studies (Anda et al; 1993; Markowitz and Matthews, 1991; Musselman et al., 1994, 1995).

Increased sympathetic tone and subsequent diminished heart rate variability secondary to elevated circulating levels of catecholamines provides a possible pathophysiologic link between IHD and depression. For example, Carney et al (1988) have established the correlation of increased heart rate and decreased heart rate variability (HRV) in patients with major depression and IHD. Thus it follows that enhancement of sympathetic tone may be important in the independent development of IHD and major depression. The interplay among these systems remains to be investigated. The present study seeks to determine the relationship between major depression and sympathetic tone.

The primary objective of the Research Protocol is to determine the effects of major depressive disorder (MDD) (see Specific Aim 1), and its treatment, on autonomic function (see Specific Aim 2). Twenty-five depressed patients with and 25 depressed patients without a history of ischemic cardiovascular disease will be recruited to this study.

To be determined is whether the exaggerated platelet reactivity and diminished HRV exhibited by depressed patients are affected by treatment with ECT. Autonomic function in depressed patients will be studied longitudinally before and after ECT. Heart rate variability (HRV) in depressed patients who exhibit a therapeutic response to ECT and who exhibited diminished HRV prior to treatment will support the hypothesis that HRV are pathophysiologically associated with the state of major depression. Successful ECT treatment of depressed mood that is not associated with normalization of HRV may indicate that: a) HRV is unrelated to Major Depressive Disorder, or b) HRV may reflect a pre-existing "trait" phenomena of major depressive disorder, or c) directly improve HRV.

Conditions

Major Depressive Disorder

Keywords

Major Depressive Disorder; Electroconvulsive Therapy; Platelet Activation

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Eligibility Criteria

Inclusion Criteria

-

Exclusion Criteria

• Patients will not be accepted into the study if they abuse alcohol or drugs.

Patients will be excluded from the study if they have had an MI within the past three months, unstable crescendo angina or ongoing warfarin treatment

Patients also will not be accepted into the study if ECT will be harmful to them. These patients include:

1. those who have had a recent MI (<3 months)

2. those who have an infection of the brain,

3. those who have a condition in which there is increased intracranial pressure (e.g. a brain tumor)

4. those who cannot tolerate general anesthesia.

Any patient with a current DSM-IV Axis I diagnosis other than major depression will be excluded from the study.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 90 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

The Dana Foundation

OTHER

Sponsor Role: collaborator

Emory University

OTHER

Sponsor Role: lead

Responsible Party

Dominique Musselman

Associate Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Dominique L Musselman, MD,MS

Role: PRINCIPAL_INVESTIGATOR

Emory University

Locations

Emory University School of Medicine

Atlanta, Georgia, United States

Countries

United States

References

Royster EB, Trimble LM, Cotsonis G, Schmotzer B, Manatunga A, Rushing NN, Pagnoni G, Auyeung SF, Brown AR, Schoenbeck J, Murthy S, McDonald WM, Musselman DL. Changes in heart rate variability of depressed patients after electroconvulsive therapy. Cardiovasc Psychiatry Neurol. 2012;2012:794043. doi: 10.1155/2012/794043. Epub 2012 Aug 27.

Reference Type: RESULT

PMID: 22966422 (View on PubMed)

Other Identifiers

98052113

Identifier Type: OTHER

Identifier Source: secondary_id

0422-1998

Identifier Type: -

Identifier Source: org_study_id