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Persistent truncus arteriosus--an autopsy study of 16 cases
J Deshpande1, M Desai, S Kinare
1Department of Pathology, Seth G.S. Medical College, Parel, Bombay, India.
International Journal of Cardiology
|December 1, 1992
Summary
Persistent truncus arteriosus (PTA) anatomical features were studied in 16 heart specimens. Type I PTA and Van Praagh
Area of Science:
- Cardiovascular Pathology
- Congenital Heart Disease
- Anatomical Classification
Background:
- Persistent truncus arteriosus (PTA) is a complex congenital heart defect.
- Accurate anatomical classification is crucial for understanding PTA.
- Existing classification systems may have limitations in categorizing PTA subtypes.
Purpose of the Study:
- To evaluate the anatomical features of persistent truncus arteriosus.
- To assess the applicability of Collet and Edwards, and Van Praagh classifications.
- To identify common associated cardiac and arch anomalies in PTA.
Main Methods:
- Study of 16 heart specimens with persistent truncus arteriosus.
- Application of Collet and Edwards classification system.
- Application of Van Praagh classification system.
Main Results:
- Type I PTA was most frequent (62.5%) by Collet and Edwards.
- Van Praagh type A1 was most common (43.7%).
- Tricuspid truncal valve (75%), subtruncal VSD (all but 1), and associated aortic arch anomalies (right-sided arch, interruption) were frequent findings.
Conclusions:
- Type I PTA and Van Praagh A1 are common subtypes.
- Truncal valve morphology and ventricular septal defect location are consistent.
- Associated aortic arch anomalies are frequently observed in PTA.