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Twisted atrioventricular valves in double inlet left ventricle
Kazuhiro Mori1, Masafumi Harada, Yasuhiro Kuroda
1Department of Pediatrics, School of Medicine, University of Tokushima, Tokushima-city, Japan. tonmaru@clin.med.tokushima-u.ac.jp
Cardiology in the Young
|September 11, 2002
Summary
This study details a rare case of twisted atrioventricular valves in a heart with double inlet left ventricle and discordant ventriculo-arterial connections. Imaging revealed a unique spatial arrangement of the atrioventricular valves within the dominant left ventricle.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Cardiac Imaging
Background:
- Twisted atrioventricular connections are typically observed in hearts with biventricular atrioventricular connections.
- Understanding variations in atrioventricular valve arrangement is crucial for diagnosing complex congenital heart defects.
Observation:
- A rare case of twisted atrioventricular valves was identified.
- This anomaly was associated with double inlet left ventricle and discordant ventriculo-arterial connections.
Findings:
- Color Doppler echocardiography and cine magnetic resonance imaging revealed the right atrioventricular valve positioned anterior and superior to the left atrioventricular valve.
- The axes of the two atrioventricular valves were observed to cross within the dominant left ventricle.
Implications:
- This case expands the spectrum of anatomical variations in congenital heart disease.
- Detailed imaging is essential for characterizing complex atrioventricular valve anomalies and associated cardiac malformations.