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The relationship between hypertrophy and dilatation in the postmortem heart.
M L Murphy1, H J White, J Meade
1Cardiology Section, Veterans Administration Medical Center, Little Rock, Arkansas.
Clinical Cardiology
|May 1, 1988
Summary
Postmortem heart examination can be confusing. This study found cardiac dilatation and hypertrophy generally occur together, except in cardiomyopathy and aortic stenosis, clarifying autopsy assessments.
Area of Science:
- Cardiovascular Pathology
- Autopsy Science
- Cardiac Morphology
Background:
- Distinguishing between cardiac dilatation and hypertrophy at autopsy can be challenging.
- Traditional methods like wall thickness measurements are often unreliable.
Purpose of the Study:
- To evaluate the relationship between ventricular dilatation and hypertrophy in postmortem hearts.
- To improve diagnostic accuracy in cardiac autopsy examinations.
Main Methods:
- Cardiac partition techniques were applied to 441 autopsy subjects.
- Ventricular weight and surface area were measured and correlated.
- Patients were categorized by disease.
Main Results:
- Ventricular surface area (dilatation index) strongly correlated with ventricular weight in most disease categories.
- Cardiomyopathy and aortic stenosis showed predominant hypertrophy, not proportional dilatation.
- Wall thickness was an unreliable indicator of hypertrophy.
Conclusions:
- Cardiac dilatation and hypertrophy are generally proportional in postmortem hearts across most diseases.
- Exceptions include cardiomyopathy and aortic stenosis where hypertrophy dominates.
- Accurate assessment of cardiac states at autopsy requires advanced techniques beyond routine methods.