Unexpected sudden death of a 12-year-old male with congenital single coronary artery
Related Experiment Videos
1Department of Legal Medicine, Kanazawa University Faculty of Medicine, Japan.
Insights
A rare congenital anomaly, single coronary artery, can lead to sudden cardiac death, especially during exertion. This case suggests a potential genetic link, with maternal family members also experiencing sudden deaths.
Area of Science:
- Cardiovascular Pathology
- Congenital Heart Disease
- Forensic Pathology
Background:
- Single coronary artery is a rare congenital anomaly.
- It can lead to myocardial ischemia and sudden cardiac death.
- Autopsy cases provide crucial insights into rare cardiac conditions.
Observation:
- Autopsy of a 12-year-old male revealed a single coronary artery originating from the left aortic sinus.
- The anomalous artery supplied the entire heart, including the cardiac conduction system.
- The right coronary artery arose at a right angle from the left anterior descending artery.
Findings:
- The patient experienced sudden cardiac death following physical and mental excitation.
- Unbalanced blood distribution due to the anomalous coronary artery likely precipitated the event.
- A familial pattern of sudden death in maternal relatives suggests possible hereditary transmission.
Implications:
- Highlights the critical role of coronary artery anatomy in preventing sudden cardiac death.
- Underscores the importance of considering congenital coronary anomalies in unexplained sudden deaths, particularly in young individuals.
- Suggests a potential genetic basis for single coronary artery anomalies and their association with sudden cardiac death, warranting further family screening.
Abstract:
A rare autopsy case of a 12-year-old male with a single coronary artery is reported in which he suddenly and unexpectedly died after a brief period of physical and mental excitation. The single coronary artery originated from the left aortic sinus, then branched out the left circumflex artery and afterwards descended as the left anterior descending artery, while the right coronary artery originated almost at a right angle from the left anterior descending artery. The entire heart as well as the cardiac conduction system depended exclusively on the single coronary artery for oxygenated blood supply, and the unbalanced blood distribution on his exertion probably led to sudden cardiac death. Moreover, in this case, both the deceased's mother (at the age of 20 years) and grandmother on the mother's side died suddenly, thus suggesting a possibility of maternal transmission of this congenital anomaly in his family.