[Takotsubo cardiomyopathy: origin and variants]

Area of Science:

• Cardiology
• Internal Medicine

Context:

• Tako-tsubo cardiomyopathy, also known as stress-induced cardiomyopathy, is a rare condition.
• It is characterized by transient left ventricular dysfunction that mimics acute myocardial infarction.
• Diagnosis is typically made in the absence of obstructive coronary artery disease.

Purpose:

• This literature review focuses on the pathophysiology and clinical presentation of tako-tsubo cardiomyopathy.
• It aims to consolidate current understanding of this unique cardiac condition.
• The review highlights historical cases and their relation to modern concepts of myocardial stunning.

Summary:

• Tako-tsubo cardiomyopathy involves reversible myocardial stunning, presenting acutely like a heart attack but without coronary artery disease.
• Echocardiography and ventriculography show characteristic left ventricular hypokinesis, often with apical ballooning and basal hyperkinesis.
• Historical cases of stress-induced myocardial damage in young men with hypercatecholaminemia align with current understanding of myocardial stunning.

Impact:

• This review enhances understanding of a rare cardiomyopathy, aiding in differential diagnosis from acute myocardial infarction.
• It emphasizes the role of stress and hypercatecholaminemia in reversible myocardial dysfunction.
• The findings support the concept of myocardial stunning as a mechanism in stress-induced cardiac events.