IJCS | Volume 31, Nº2, March / April 2018

191 Figure 1 – Initial color echocardiogram showing severe mitral regurgitation (maximum area greater than 8 cm 2 ). Figure 2 – Color echocardiogram performed one week after the first examination showing the disappearance of the regurgitant jet. Jorge et al. Mitral regurgitation and hyperthyroidism Int J Cardiovasc Sci. 2018;31(2)190-192 Case Report