Takotusbo cardiomyopathy (the "broken heart syndrome"), although unknown until recently, represents an important entity in the differential diagnosis of chest pain. Recent studies reveal that it may represent 1-5% of the causes of emergency department presentation. The present book is a monograph presented to the Cardiology Service of the Federal University of Ceará on the importance of the use of echocardiography - a test whose use is expanding - in the diagnosis of this syndrome. Based on a clinical case, it discusses multiple aspects in order to summarise the most important elements in understanding this disease, as well as its recognition by clinical examination and complementary tests.