Coronary arteries in crisscross heart
Paolo Angelini1, Alberto Lopez, Roberto Lufschanowski
1Department of Adult Cardiology, Texas Heart Institute at St. Luke's Episcopal Hospital, Houston, Texas 77030, USA. pangelinimd@houston.rr.com
Insights
Crisscross heart, a rare congenital anomaly, was observed in a unique case of situs inversus levocardia. This finding helps clarify typical features of crisscross ventricles and related cardiac anomalies.
Area of Science:
- Cardiology
- Developmental Biology
- Medical Imaging
Background:
- Crisscross heart, also known as superoinferior ventricles, is a complex congenital heart defect.
- Understanding its variations is crucial for accurate diagnosis and management.
- Situs inversus levocardia presents a unique anatomical context for studying cardiac anomalies.
Observation:
- A rare case of "isolated" crisscross heart was identified in a 41-year-old woman with situs inversus levocardia.
- The patient exhibited peculiar coronary artery anatomy.
- This presentation offered a clearer view of typical crisscross ventricles.
Findings:
- The case highlights the strong relationship between coronary artery anatomy and the myocardial mass it serves.
- Proper ventricular septal development and alignment with semilunar valves are essential for the formation of major coronary arteries like the anterior descending artery.
- Crisscross heart represents a spectrum of cardiac apex formation anomalies, ranging from normal to severely deviated.
Implications:
- This case provides valuable insights into the spectrum of congenital heart anomalies, particularly concerning ventricular arrangement and coronary artery development.
- It aids in refining the understanding and definition of crisscross heart.
- The findings emphasize the importance of considering complex anatomical variations in congenital heart disease.
Abstract:
Crisscross heart, or superoinferior ventricles, is a complex and often confusing congenital anomaly. We report a heretofore unreported presentation of "isolated" crisscross heart in situs inversus levocardia, which allows us to more clearly define the typical features of crisscross ventricles. The case of this 41-year-old woman, who had a peculiar coronary anatomy, underscores the concept that coronary artery anatomy is strictly related to the myocardial mass served. In complex congenital heart defects, development of an anterior descending artery is possible (as a primary artery, along with the circumflex and right coronary arteries) only if the ventricular septum develops properly and is aligned with the semilunar valves. We use the present case of crisscross heart to illustrate the spectrum of anomalies that can occur during formation of the cardiac apex; this spectrum ranges from a normal apex, to a diverted apex (as in dextroversion in situs solitus), to a crisscross anomaly.
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