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Coronary artery atherosclerosis revisited in Korean war combat casualties
Insights
Coronary atherosclerosis was prevalent in young Korean War combat casualties. This study confirms earlier findings, with 6.4% showing severe narrowing, indicating a need for further research into current trends.
Area of Science:
- Cardiovascular pathology
- Military medicine
- Atherosclerosis research
Background:
- Previous studies indicated a high prevalence of coronary atherosclerosis in combat casualties from the Korean and Vietnam Wars.
- Understanding the long-term impact of combat on cardiovascular health is crucial.
Purpose of the Study:
- To confirm earlier findings on the prevalence of coronary atherosclerosis in Korean War combat casualties.
- To establish a baseline for comparing current atherosclerosis incidence in young adults.
Main Methods:
- Examination of 94 uncut coronary arteries from deceased American male combat casualties (mean age 20.5 years) of the Korean War.
- Utilized computerized planimetry and microscopic evaluation for detailed analysis.
- Assessed cross-sectional area luminal narrowing and plaque characteristics.
Main Results:
- Six (6.4%) casualties exhibited severe coronary atherosclerosis (75%–90% luminal narrowing).
- Of these, five had fibrous plaques and one had a complicated plaque.
- The observed prevalence aligns with previous reports (5%).
Conclusions:
- Coronary atherosclerosis was significantly present in young combat casualties during the Korean War.
- Further studies with a larger sample size (at least 772 men) are required to detect a potential 50% decline in atherosclerosis incidence.
- This research underscores the importance of monitoring cardiovascular health in young populations, especially those exposed to combat.
Abstract:
To confirm earlier studies of a high prevalence of coronary atherosclerosis in combat casualties of the Korean and Vietnam wars, we examined previously uncut coronary arteries from the hearts of 94 American male combat casualties (mean age, 20.5 years) from the Korean War using computerized planimetry and microscopic evaluation. Six (6.4%) men had severe atherosclerosis (75% to 90% cross-sectional area luminal narrowing) in one or more coronary arteries; five of the six had fibrous plaques, and one had a complicated plaque. Our prevalence is similar to that reported previously (5%). Therefore, to determine whether the decrease in the incidence of severe coronary atherosclerosis today is the result of decreased plaque formation in the young, we will need to examine at least 772 men to detect a 50% decline with 85% to 90% confidence.