ABC Imagem Cardiovasc. 2026; 39(2): e20260048
Major Depressive Disorder and Quality of Life in Patients With Coronary Artery Disease Assessed by Myocardial Perfusion Imaging
DOI: 10.36660/abcimg.20260048i
Abstract
Background:
Major depressive disorder (MDD) may negatively influence cardiovascular prognosis, increasing the morbidity and mortality of patients with coronary artery disease (CAD). Thus, the psychometric assessment of these individuals may contribute to understanding how mental health impacts the pathophysiology of myocardial ischemia.
Objective:
To evaluate the prevalence of MDD in patients with CAD undergoing stress and rest myocardial perfusion imaging (MPI) using the psychometric instrument Patient Health Questionnaire-9 (PHQ-9). As secondary objectives, to correlate quality of life (QoL) data obtained using the 12-Item Short Form Survey (SF-12) and Positive and Negative Affect Schedule (PANAS) instruments with the presence or absence of myocardial ischemia detected by MPI.
Methods:
The SF-12, PHQ-9, and PANAS questionnaires were administered to 120 consecutive patients referred for MPI for CAD evaluation. The prevalence of MDD was assessed, and the results were correlated with MPI findings and QoL scale scores.
Results:
A high prevalence of MDD was identified (58 cases; 48.3%), with no association with risk factors, age, or MPI findings. A significant rate of suicidal ideation was observed among the evaluated patients (15 cases; 12.5%), in addition to reduced QoL in 88.3% of patients (n = 106), with scores below 50 on the physical SF-12, and in 65% (n = 78), with scores below 50 on the mental SF-12, indicating poor perceived mental health.
Conclusion:
These findings reinforce the need for a multidisciplinary approach in the management of patients with suspected CAD, including systematic mental health assessment, given the opportunities to improve outcomes during patient interactions with the health care system.
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