Montreal Heart Attack Readjustment Trial (M-HART)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00000533
Recruitment Status : Completed
First Posted : October 28, 1999
Last Update Posted : December 29, 2015
National Heart, Lung, and Blood Institute (NHLBI)
Information provided by:
McGill University

Brief Summary:
To examine the impact of a monitoring and social support intervention upon survival of myocardial infarction patients.

Condition or disease Intervention/treatment Phase
Cardiovascular Diseases Coronary Disease Heart Diseases Myocardial Infarction Myocardial Ischemia Behavioral: social support Phase 3

Detailed Description:


Despite evidence that social support and various aspects of negative affect may influence prognosis after a myocardial infarction, the impact of psychosocial supportive interventions had not been demonstrated. Further, little was known about the impact of psychosocial and/or interventions among women patients. Previous work by Nancy Frasure-Smith and colleagues suggested that a one-year post-myocardial infarction program of monthly telephone monitoring of psychological stress symptoms, coupled with home nursing visits for patients reporting high stress levels, had an impact on one-year cardiac mortality and long-term myocardial infarction recurrences among men. However, methodological difficulties prevented drawing firm conclusions. A trial which corrected for these difficulties was conducted involving 948 post-myocardial infarction patients. However, the project was too small to study enough patients to assess program impact separately for men and women. The trial was supported by Canadian sources. The NHLBI supplemented the study in order to expand the sample size from 948 patients to 1,376 patients to allow gender analysis.


Randomized, with a multi-hospital design. At the time of discharge from the hospital following a documented myocardial infarction, patients were randomized to treatment and control groups. The control group received usual care from their physicians. In addition to usual care, treatment patients were phoned monthly and responded to a standardized index of psychological symptoms of stress. Those with high stress levels received home nursing visits to reduce their stress. Patients in both groups took part in three interviews: in the hospital, at three months, and at one year post-discharge. Interviews assessed depression, anxiety, anger, self-perceived stress, social support, medication compliance, and cardiac risk factors. Salivary cortisol, a physiological indicator of stress, was assessed on the evening following each interview. Indicators of residual myocardial infarction, ischemia, and arrhythmias were obtained from hospital charts. Outcome data were obtained from hospital charts, death certificates, and Quebec Medicare data and were blindly classified by study cardiologists.

Study Type : Interventional  (Clinical Trial)
Official Title: Montreal Heart Attack Readjustment Trial (M-HART)
Study Start Date : February 1992
Study Completion Date : December 1996

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Heart Attack

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Men and women myocardial infarction patients.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00000533

Sponsors and Collaborators
McGill University
National Heart, Lung, and Blood Institute (NHLBI)
OverallOfficial: Nancy Frasure-Smith McGill University

Publications: Identifier: NCT00000533     History of Changes
Other Study ID Numbers: 76
R01HL047330 ( U.S. NIH Grant/Contract )
First Posted: October 28, 1999    Key Record Dates
Last Update Posted: December 29, 2015
Last Verified: March 2005

Additional relevant MeSH terms:
Cardiovascular Diseases
Heart Diseases
Myocardial Infarction
Coronary Disease
Coronary Artery Disease
Myocardial Ischemia
Pathologic Processes
Vascular Diseases
Arterial Occlusive Diseases