Comparison of SF-36 and Seattle angina questionnaire for evaluation the quality of life in patients with stable ischemic heart disease after percutaneous coronary intervention, taking into account mental health status

Objective: to evaluate indicators reflecting the quality of life of patients with stable coronary artery disease in dynamics before and after coronary stenting, depending on the presence of symptoms of depression, and to compare the informative value of the Seattle questionnaire and SF-36 to identify changes in QOL associated with depression. Materials and methods: in 85 patients with stable IHD, angina pectoris of 2-3 functional classes, QOL was assessed using two questionnaires: SF-36 (The Short Form – 36v2 ® Health Survey, Optum) and the Seattle Angina Questionnaire (SAQ). QOL was assessed before PCI, after 3, 6 and 12 months. Depression symptoms were screened using the HADS and CES-D questionnaires. Results: stable IHD was associated with initially reduced levels of QOL. The presence of depressive symptoms was associated with a decrease in the psycho-emotional component of QOL according to the SAQ and SF-36. In the group of patients with depressive symptoms, there was a positive dynamics of the physical component of QOL after stenting, both according to the SAQ and SF-36. Also with the use of the SAQ and the SF-36 questionnaire, in the group without depressive symptoms, most of the indicators of QOL after PCI remained stable throughout the observation period. There were found statistically significant correlations between the scales of the SAQ and the SF-36 questionnaire reflecting the physical condition. Conclusion : сorrelation was found between the scores of the disease-specific Seattle Angina Questionnaire and the physical component scores of the generic SF-36 questionnaire, suggesting comparability of these scales for assessing physical status in patients with stable coronary artery disease. In the group of patients with stable CAD and concomitant depressive symptoms, QOL impairment was observed predominantly in the mental health domains. Percutaneous coronary intervention with stenting in patients with depressive symptoms was associated with improvement in the physical component of QOL.