Heart failure and dysthyroidism: a double-edged sword

Heart failure is the final outcome of most cardiovascular pathologies. It is associated with high mortality, especially in patients with other comorbidities such as dysthyroidism. The aim of this study was to assess thyroid function in patients with chronic heart failure, using a cross-sectional analysis. All consenting adults with heart failure were included. At the end of the study, we found that in patients with chronic heart failure, low T3 syndrome is the most common thyroid abnormality, and is associated with a more severe clinical presentation.