Cystic tumor of the atrioventricular node: a case report
Year: 2025
Type: article
Abstract: Primary cardiac tumors are rare anomalies, with an incidence ranging from 0.0017% to 0.03% in autopsies. Among them, atrioventricular (AV) node cystic tumors present as benign congenital anomalies located in the trigone of the atrioventricular node. This type of tumor accounts for approximately 2.7% of all primary cardiac tumors and has the potential to cause severe arrhythmias or sudden death. This article reviews AV node cystic tumors and discusses its etiology, symptoms, diagnosis, and treatment. Although its exact origin is still uncertain, it is considered a significant congenital anomaly because of its association with sudden cardiac death, which constitutes about 50% of cardiovascular mortality. The absence of visible macroscopic signs underlines the importance of maintaining a high index of suspicion in patients presenting with AV node localized heart block or sudden death, particularly in children, young adults, and women. Early detection and accurate diagnosis are critical, requiring a thorough evaluation of the cardiac conduction system and detailed tissue analysis. Careful investigation and prompt intervention can significantly improve clinical outcomes and reduce the risk of sudden cardiac death.
Authors: Christian Zgrablich, Víctor Roger, Hernán Del Percio, Tomás Hudson, Andrés Esteban Molina, Geraldo Meza, Luis Sánchez Eguis
Language: English
Topic: Cardiac tumors and thrombi
Subfield: Cardiology and Cardiovascular Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4410002657