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Major depression in coronary artery disease patients with vs. without a prior history of depression
K E Freedland1, R M Carney, P J Lustman
1Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri 63178.
Insights
Major depression (MD) in coronary artery disease (CAD) patients may have two subtypes. Those with a history of depression tend to be female, have more severe depression, and slightly less severe CAD.
Area of Science:
- Cardiology
- Psychiatry
- Clinical Psychology
Background:
- Major depression (MD) frequently co-occurs with coronary artery disease (CAD).
- Depression in CAD patients can manifest as a first episode or a recurrence.
- Understanding depressive subtypes in CAD is crucial for tailored treatment.
Purpose of the Study:
- To investigate systematic differences between CAD patients experiencing their first depressive episode versus those with a history of prior major depression.
Main Methods:
- Cross-sectional study of 39 patients with recently diagnosed CAD and MD (DSM-III-R criteria).
- Patients were categorized into two groups: those with a prior history of MD and those without.
- Demographic, clinical depression, and CAD severity data were compared between subgroups.
Main Results:
- 44% of depressed CAD patients had a prior history of MD.
- The subgroup with a prior MD history showed a higher proportion of females (p < 0.003) and more severe depression (p < 0.004).
- This subgroup was marginally younger (p = 0.08) and had slightly less severe CAD (p = 0.07).
Conclusions:
- Findings suggest two distinct subtypes of MD exist in patients with CAD.
- Further research is warranted to explore differences in disease course, treatment response, and the relationship between these subtypes and CAD progression.
Abstract:
Major depression (MD) is common in patients with coronary artery disease (CAD). Some of these patients have a history of prior depressive episodes, whereas others experience their first episode around the same time that their CAD is diagnosed. The purpose of this study was to determine whether there are systematic differences between these two subgroups of depressed patients. Of 39 patients with recently diagnosed CAD who met DSM-III-R criteria for MD, 17 (44%) had a prior history of MD. This subgroup had a higher proportion of females (p less than 0.003), more severe depression (p less than 0.004), were marginally younger (p = 0.08), and had slightly less severe CAD (p = 0.07) compared with those with no prior history of MD. These results support the hypothesis that there may be two distinctive subtypes of MD in patients with CAD. Additional studies are needed to determine whether these subgroups differ with respect to course, treatment, and relationship to the coronary artery disease.