Myocardial infarction and left ventricular free wall rupture in a patient with a prior pericardiectomy

Area of Science:

• Cardiology
• Cardiac Surgery
• Thoracic Medicine

Background:

• Inferolateral myocardial infarction can lead to severe complications.
• Cardiogenic shock necessitates urgent intervention.
• Previous pericardiectomy alters the presentation of cardiac emergencies.

Observation:

• A 59-year-old male presented with cardiogenic shock post-myocardial infarction.
• Extensive intrathoracic hemorrhage was identified, communicating with the left ventricle.
• The patient's history of pericardiectomy prevented cardiac tamponade.

Findings:

• The intrathoracic hemorrhage originated from a myocardial perforation.
• The absence of hemopericardium facilitated diagnosis.
• Surgical closure of the myocardial perforation site was successfully performed.

Implications:

• This case highlights a rare but critical complication of myocardial infarction.
• Pericardiectomy can mask or alter the typical presentation of myocardial rupture.
• Successful management involves early diagnosis and surgical intervention for myocardial perforation.