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Published on: June 14, 2016
An autopsy study of hypertrophic cardiomyopathy
1Department of Pathology, Army Medical College Abid Majid Road, Rawalpindi.
Insights
Sudden cardiac death in young males is often linked to hypertrophic cardiomyopathy (HCM). Morphological examination during autopsy is crucial for diagnosing this condition, revealing myocardial disarray and fibrosis.
Area of Science:
- Cardiovascular Pathology
- Forensic Medicine
Background:
- Hypertrophic cardiomyopathy (HCM) is a primary cause of sudden cardiac death, particularly in young individuals.
- Morphological examination is vital for diagnosing HCM, especially in cases of unexplained sudden death.
Purpose of the Study:
- To investigate the pathological features of hypertrophic cardiomyopathy in autopsies.
- To highlight the diagnostic importance of morphological examination in sudden cardiac death cases attributed to HCM.
Main Methods:
- A retrospective analysis of 15 autopsy cases of hypertrophic cardiomyopathy.
- Gross examination of cardiac structures and histological assessment of myocardial tissue.
Main Results:
- All cases involved young adult males (17-34 years), with 10 experiencing sudden death.
- Pathological findings included symmetrical/asymmetrical hypertrophy, increased ventricular wall thickness, myocardial fiber disarray, and interstitial fibrosis.
Conclusions:
- Sudden cardiac death can be the initial presentation of HCM.
- Myofiber hypertrophy and disarray are key pathological findings.
- Consideration of HCM is essential during post-mortem examination for sudden cardiac death.
Objective:
To see the pathological features of this disease in our set up and to emphasise the importance of morphological examination in making the diagnosis of hypertrophic cardiomyopathy (HCM) especially in cases of sudden cardiac death.
Methods:
A retrospective, descriptive study of 15 autopsies of this particular disease was carried out at the Armed Forces Institute of Pathology (AFI) Rawalpindi during the period from 1990 to 1995. The hearts along with blood vessels were fixed in 10% formalin and were dissected according to the modified Virchow's method for eliciting the gross appearance of cardiac chambers and valves. Representative sections were taken for histological examination.
Results:
All the cases were young adult males. The age range was from 17-34 years (mean, 26-6 years). Ten cases died suddenly and five cases had an evidence of moderate to severe exertion preceding their death. Symmetrical as well as asymmetrical hypertrophy was noted in this study. The thickness of inter ventricular septum (mean 20 mm) and left ventricular wall (mean 22.5 mm) was increased. All the specimens revealed disarray of hypertrophic myocardial fibres and patchy interstitial fibroses.
Conclusion:
Sudden death is usually the first manifestation of disease. The hearts showed asymmetric as well as concentric hypertrophy. Myofibre hypertrophy and disarray was an important pathological findings in our cases. While carrying out post-mortem examination of a case of sudden cardiac death one should also keep in mind the possibility of this disease.
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