Sudden death due to coronary artery anomalies: a case report and clinical review

C Rao1, V Rao, H A Heggtveit

  • 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.

Related Concept Videos

Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Introduction Cardiac Emergencies01:30

Introduction Cardiac Emergencies

Cardiac emergencies are critical situations involving the heart that require immediate medical intervention to prevent severe complications or death. These emergencies often arise from underlying heart conditions that impair the heart's ability to function correctly.Types of Cardiac EmergenciesThe most common types of cardiac emergencies include Acute Coronary Syndrome (ACS), myocardial infarction (MI), cardiac arrest, and heart failure.Acute Coronary Syndrome (ACS)Acute Coronary Syndrome (ACS)...