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Updated: Aug 9, 2026
Dissection Techniques and Histological Sampling of the Heart in Large Animal Models for Cardiovascular Diseases
Published on: June 16, 2022
Incidence of cardiovascular disease in the dissecting room: a valuable teaching asset
1Department of Anatomy, Guy's King's and St Thomas's School of Biomedical Sciences, King's College, London, United Kingdom. joo.chun@imperial.ac.uk
Insights
This study found that all 50 cadavers had cardiovascular pathology, with severe coronary atherosclerosis and aortic valve disease being most common. Dissection effectively teaches cardiac anatomy and common pathologies to medical students.
Area of Science:
- Cardiovascular Pathology
- Gross Anatomy
- Medical Education
Background:
- Understanding the prevalence of cardiac pathologies in anatomical specimens is crucial for medical training.
- Dissection provides a hands-on approach to learning complex cardiac structures and disease manifestations.
Purpose of the Study:
- To determine the incidence of cardiovascular pathology in cadaveric hearts.
- To highlight the educational value of dissection in teaching cardiac anatomy and pathology.
Main Methods:
- Examination of 50 cadavers at Guy's Campus, King's College, London.
- External evaluation followed by dissection and analysis of the four heart chambers.
- Systematic recording of pathologies including atherosclerosis, myocardial infarction, valvular disease, and anatomical variations.
Main Results:
- All 50 hearts exhibited at least one pathology.
- Severe coronary atherosclerosis (44) and aortic valve pathology (23) were the most prevalent findings.
- Left ventricular hypertrophy (13), left atrial enlargement (9), and myocardial infarction (4) were also observed, alongside several anatomical anomalies.
Conclusions:
- Cadaveric dissection reveals a high incidence of cardiovascular pathology.
- Dissection is an invaluable tool for medical students to learn normal cardiac anatomy and common pathologies.
- This method enhances understanding of real-world cardiac conditions in an anatomical context.
Abstract:
The purpose of this study was to determine the incidence of cardiovascular pathology in 50 cadavers in the dissecting room of the Department of Anatomy at Guy's Campus, King's College, London, and to demonstrate the importance of dissection in teaching the anatomy of normal and pathological hearts. After external evaluation of each heart the four chambers were dissected and studied. The features noted included evidence of coronary atherosclerosis, myocardial infarction, variations in coronary artery anatomy, valvular disease, variations in left ventricular wall thickness and atrial dimensions, and atrial anomalies. All the hearts studied had at least one pathology. The majority had severe coronary atherosclerosis (44) and aortic valve pathology (23). A large number had left ventricular hypertrophy (13) and left atrial enlargement (9). A small number showed evidence of myocardial infarction (4). Anatomical anomalies were also found, and included persistent foramen ovale (1), three coronary arterial ostia (3), and anatomical variations of the orientation of the main stem of the left coronary artery (2). This study demonstrates that dissection is not only an excellent way of studying normal cardiac anatomy, but also a valuable method for introducing common cardiac pathologies to the medical student.
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