Sudden death due to coronary artery anomalies: a case report and clinical review
1Gordon V. Torrance Regional Forensic Pathology Unit, McMaster University Medical Centre, Hamilton, Ontario, Canada.
Insights
Congenital coronary artery anomalies are rare but can cause sudden death. This case highlights a young female whose death was linked to unusual coronary artery origins and myocardial ischemia.
Area of Science:
- Cardiology
- Forensic Pathology
- Anatomical Pathology
Background:
- Congenital coronary artery anomalies (CCAA) are uncommon, affecting ~2% of adults.
- While less frequent than acquired coronary artery disease, CCAAs can lead to myocardial ischemia, angina, arrhythmia, infarction, and sudden cardiac death.
- Forensic pathology plays a crucial role in identifying CCAAs as a cause of sudden unexpected death.
Observation:
- A case report of a 21-year-old female with no prior medical history found deceased.
- Autopsy revealed a high take-off of the right coronary artery and acute downward angulation of the left main coronary artery.
- Microscopic findings indicated global myocardial ischemia, suggesting a terminal ventricular dysrhythmia.
Findings:
- The patient's death was attributed to congenital coronary artery anomalies causing myocardial ischemia.
- No other pathological findings or toxicological evidence were identified.
- The specific anatomical variations (high take-off, acute angulation) are implicated as the cause.
Implications:
- This case underscores the importance of considering CCAAs in unexplained sudden deaths, even in young individuals.
- Accurate postmortem examination is vital for diagnosing CCAAs and determining cause of death.
- Understanding these anomalies can inform future risk assessment and potentially preventative strategies.
Abstract:
Congenital anomalies of the coronary arteries are relatively uncommon conditions with an incidence of approximately 2% in the adult population. Although less common than acquired coronary artery disease, these anomalies may be associated with myocardial ischemia and its consequences; angina, arrhythmia, infarction, and sudden death. A 21-year-old female patient with no significant prior medical history was found dead at home. Postmortem examination revealed high take-off of the right coronary artery with acute down-ward angulation of the proximal right coronary artery and acute downward angulation of the left main coronary artery. Microscopic examination revealed global myocardial ischemia consistent with a terminal ventricular dysrhythmia. There was no evidence of any other disease processes. Detailed toxicological investigation was negative. The Regional Forensic Pathology Unit experience with sudden death due to congenital coronary artery anomalies is presented along with a review of the current literature.
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