Rupture of massive coronary artery aneurysm resulting in cardiac tamponade

Takeshi Kondo1, Motonori Takahashi1, Kanako Nakagawa1

  • 1Division of Legal Medicine, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe, Japan.

Insights

A massive coronary artery aneurysm ruptured, causing cardiac tamponade and death in a middle-aged man. This rare case highlights the severe consequences of atherosclerotic coronary artery aneurysms.

Area of Science:

  • Cardiology
  • Pathology

Background:

  • Coronary artery aneurysms are rare dilatations exceeding 1.5 times normal artery width.
  • Rupture of these aneurysms can lead to life-threatening complications.

Purpose of the Study:

  • To report a fatal case of a ruptured massive coronary artery aneurysm.
  • To describe the pathological findings and cause of death.

Main Methods:

  • Autopsy and histological examination of a deceased middle-aged male.
  • Analysis of pericardial blood, coronary arteries, aorta, and heart.

Main Results:

  • Two true aneurysms of the right coronary artery were identified; one ruptured, causing 270mL hemopericardium.
  • Severe atherosclerosis was noted in the coronary arteries and aorta.
  • The cause of death was cardiac tamponade due to the ruptured atherosclerotic aneurysm.

Conclusions:

  • Rupture of giant coronary atherosclerotic aneurysms can be rapidly fatal.
  • Atherosclerosis is a key underlying pathology in these aneurysms.
  • This case underscores the importance of recognizing and managing coronary artery aneurysms.

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