Psychosocial factors have a significant effect on cardiovascular risk, to an extent that is comparable to that of hypertension or abdominal obesity.1 Acute coronary syndromes (ACS) also trigger emotional reactions that can be severe, 2,3 and an acute cardiac event or unexpected admission to an intensive care unit can be frightening and stressful.4 Studies on individuals who have suffered myocardial infarction (MI) reveal high levels of depression and anxiety (31% and 26%, respectively, before discharge, 2 as well as one and two years afterwards 2,3 ). These figures are important because depression and anxiety are independent predictors of reinfarction, 5 due to a variety of pathophysiological mechanisms including hyperactivity of the sympathetic nervous system and of the hypothalamushypophysis-adrenal axis, alterations in platelet function, inflammation, and endothelial dysfunction. 6 ---8 Studies have shown a strong association between a major stressful event and the occurrence of MI and cardiac mortality. Cardiovascular mortality increases in the weeks following the death of a loved one 9,10 and immediately after ଝ Please cite this article as: Abreu A. Breve intervenção psicológ-ica em doentes internados após síndrome coronária aguda: essencial ou acessória? Rev Port Cardiol. 2017;36:651---654.E-mail address: ananabreu@hotmail.com a terrorist attack, 11 natural disaster 12 or an important football match. 13,14 In Hospital de Santa Marta, psychological assessments have revealed that in over 50% of MI cases there was an acute stress trigger: divorce, death of a close relative, moving home, retirement, or change of employment (Abreu et al., unpublished data, presented at the 2010 Portuguese Congress of Cardiology). These patients already have causal factors related to anxiety and depression that do not disappear with the MI. It can be speculated that these predisposing factors may worsen the patient's emotional state, beyond the acute stress caused by the MI itself.Patients with depression or anxiety are hospitalized more often in the year following MI 15 and those with depression are less likely to return to work, both full time and at reduced working hours.
16This negative impact on prognosis shows the importance of identification and prompt and appropriate treatment of the emotional problems arising from ACS.A brief psychological intervention following ACS has both benefits and limitations. Nowadays, the psychological dimension should be central to any cardiac rehabilitation (CR) program, unlike in the past when such programs were mainly exercise-based. 17 CR is a structured, wide-ranging, multidisciplinary intervention that includes functional, nutritional and psychosocial components and a variety of