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Right Atrium
Right Atrial Appendage Coronary Sinus Ostium Crista Terminalis Fossa Ovalis Inverior Vena Cava Ostium Interatrial Septum Lateral Wall Triangle of Koch Tricuspid Valve

Location:
upper portion of right side of heart consisting of the sinus venosus and the right atrial appendage; contains the sinoatrial node

Function:
returns deoxygenated blood from the body to the right ventricle

Importance in cardiovascular diseases:
atrial arrhythmias; dilated in tricuspid stenosis and tricuspid regurgitation; congenital defects (e.g., patent foramen ovale, atrial septum defects)

Importance in device delivery:
alternate and dual-site pacing to prevent atrial fibrillation

Localización:
porción superior derecha del corazón, constituida por el seno venoso y la orejuela derecha; contiene el nódulo sinoauricular

Función:
devuelve la sangre desoxigenada del cuerpo al ventrículo derecho

Importancia en las enfermedades cardiovasculares:
arritmias auriculares; dilatada en estenosis y regurgitación tricuspídea; defectos congénitos (foramen oval permeable, defectos del septo interauricular)

Importancia en implante de dispositivos:
marcapasos alternativo y bicameral para prevenir la fibrilación auricular

 

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