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Cover of Post-Myocardial Infarction Depression

Post-Myocardial Infarction Depression

Evidence Reports/Technology Assessments, No. 123

Investigators: , MD, , MD, , MSPH, , PhD, , MD, MPH, , PhD, , MD, , ED, , MPH, , MPH, , BA, and , MD, MPH.

Rockville (MD): Agency for Healthcare Research and Quality (US); .
Report No.: 05-E018-2

Structured Abstract

Context:

To improve outcomes of patients with myocardial infarction (MI), a number of treatments are typically recommended, including medications, revascularization procedures, behavior and lifestyle changes, and cardiac rehabilitation. Co-existent depression may influence the recovery of patients with MI in a number of important ways reviewed in this report.

Objectives:

Depression is manifested by a number of symptoms, including depressed mood, diminished interest or pleasure, and low self-esteem. These symptoms may occur in patients recovering from an MI and have the potential to adversely impact recovery. In this report, we examined the evidence addressing the following questions: 1) In patients with acute MI, what is the prevalence of depression during the initial hospitalization? 2) What percentage of patients with post-MI depression continue to have depression one or more months after initial hospital discharge? 3) What is the association of post-MI depression with outcomes or with surrogate markers of cardiac risk, independent of other predictors of post-MI outcomes? 4) Do post-MI patients with depression have better outcomes with depression treatment compared to those without depression treatment? 5) What are the performance characteristics (e.g., sensitivity, specificity, reliability and predictive value) of instruments or methods that are used to screen for depression following an acute MI? 6) Does the use of cardiac treatment for patients with acute MI differ for those with and without depression?

Data Sources:

The Johns Hopkins University Evidence-based Practice Center (EPC) team searched electronic databases for literature published through March 2004. The team identified additional articles by hand-searching the table of contents of 16 relevant journals for appropriate citations from October 2003 to April 2004, by querying experts, and by reviewing references in pertinent review articles identified during abstract review and in eligible articles during the article review process.

Study Selection:

Paired investigators reviewed the abstracts of identified citations to select studies that addressed the questions, reported on human subjects, and were written in English. Some questions had additional eligibility criteria. During the abstract review process, emphasis was placed on identifying all articles that could have original data that might address the questions.

Data Collection and Analysis:

Paired reviewers confirmed the relevance of each article to the research questions and abstracted data in a serial manner; the quality of each eligible study was assessed independently by each reviewer.

Main Results:

The search identified 86 articles with original data that addressed the questions. Results were as follows: 1) The evidence indicated that the prevalence of major depression is about 20 percent in patients hospitalized for MI and that of potentially significant symptoms of depression an additional 10 to 47 percent. 2) Few studies reported the prevalence of depression in patients at the time of the hospitalization and then re-assessed those same patients at follow-up, but the studies indicated that most patients with depression during the initial MI hospitalization remain depressed 1 to 4 months later. 3) Post-MI depression is associated with a significantly increased risk of subsequent death, and of cardiac re-admission and poor quality of life during the first year. There is limited evidence that post-MI depression is associated with surrogate markers of cardiac risk. 4) In post-MI patients with depression, psychosocial intervention improves depression but not other outcomes. In post-MI patients with depression, selective serotonin re-uptake inhibitors (SSRIs) improve depression and some surrogate markers of cardiac risk, but no studies of sufficient power address the question of whether this treatment improves survival. 5) There is insufficient data to adequately assess the performance characteristics of instruments or methods used to screen for depression during the initial MI hospitalization, but most commonly used screening instruments or rating scales have adequate sensitivities and specificities when used within 3 months after initial hospitalization. 6) Patients with post-MI depression exhibit lower adherence to prescribed medications and secondary prevention measures compared to those without depression. The literature was too limited or heterogeneous to make conclusions about whether there are significant differences in cardiac medication prescription or cardiac procedure use in post-MI patients based on the presence or absence of depression.

Conclusions:

Evidence is consistent that in patients with MI, depression is common at the time of the hospitalization and persists for at least several months after hospital discharge without treatment. Post-MI depression is associated with a significantly increased risk of subsequent death, and of cardiac re-admission and poor quality of life during the first year. Strong evidence exists to indicate that both psychosocial interventions and SSRIs are effective in improving depression in MI survivors, but there is no evidence that either decreases mortality or cardiac events. Although it is not clear whether the frequency of prescription of cardiac medications or use of cardiac procedures is different based on the presence of depression, there is relatively strong evidence that those with post-MI depression have lower adherence to prescribed medications and secondary prevention measures than those without depression.

Contents

540 Gaither Road, Rockville, MD 20850. www​.ahrq.gov

Prepared for: Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services.1 Contract No. 290-02-0018. Prepared by: The Johns Hopkins University Evidence-based Practice Center, Baltimore, MD.

Suggested citation:

Bush DE, Ziegelstein RC, Patel UV, Thombs BD, Ford DE, Fauerbach JA, McCann UD, Stewart KJ, Tsilidis KK, Patel AL, Feuerstein CJ, Bass EB. Post-Myocardial Infarction Depression. Evidence Report/Technology Assessment No. 123. (Prepared by the Johns Hopkins University Evidence-based Practice Center under Contract No. 290-02-0018.) AHRQ Publication No. 05-E018-2. Rockville, MD: Agency for Healthcare Research and Quality. May 2005.

This report may be used, in whole or in part, as the basis for development of clinical practice guidelines and other quality enhancement tools, or a basis for reimbursement and coverage policies. AHRQ or U.S. Department of Health and Human Services endorsement of such derivative products may not be stated or implied.

AHRQ is the lead Federal agency charged with supporting research designed to improve the quality of health care, reduce its cost, address patient safety and medical errors, and broaden access to essential services. AHRQ sponsors and conducts research that provides evidence-based information on health care outcomes; quality; and cost, use, and access. The information helps health care decisionmakers—patients and clinicians, health system leaders, and policymakers—make more informed decisions and improve the quality of health care services.

The authors of this report are responsible for its content. Statements in the report should not be construed as endorsement by the Agency for Healthcare Research and Quality or the U.S. Department of Health and Human Services of a particular drug, device, test, treatment, or other clinical service.

1

540 Gaither Road, Rockville, MD 20850. www​.ahrq.gov

Bookshelf ID: NBK37817
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