Massive pulmonary embolus complicating left atrial myxoma

Area of Science:

• Cardiology
• Cardiovascular Surgery
• Pathology

Background:

• Atrial myxomas are the most common primary cardiac tumors.
• They can lead to constitutional symptoms, embolic phenomena, and intracardiac obstruction.
• The classic presentation involves a triad of these symptoms.

Observation:

• A case of a massive pulmonary thromboembolus is presented.
• This complication arose in the context of a left atrial myxoma.
• Notably, there was an absence of an atrial or ventricular septal defect.

Findings:

• Left atrial myxomas can precipitate significant embolic events.
• Pulmonary thromboembolism is a rare but severe complication of left atrial myxoma.
• The absence of septal defects does not preclude this risk.

Implications:

• This case underscores the importance of considering atrial myxoma in patients with unexplained embolic events, particularly pulmonary thromboembolism.
• Early diagnosis and surgical resection of atrial myxoma are crucial to prevent potentially fatal complications.
• Further research may elucidate the specific mechanisms leading to thromboembolism in myxomas without septal defects.