Persistent left superior vena cava drainage in coronary sinus скачать в хорошем качестве

Persistent left superior vena cava drainage in coronary sinus

Persistent left superior vena cava drainage in coronary sinus #youtubevideos #education #anatomy #Persistent left superior vena cava drainage in coronary sinus About this video: - This video is only for educational and training purpose not for any medical practice. Persistent Left Superior Vena Cava (PLSVC) is an anatomical variant where the left superior vena cava (LSVC) persists after birth instead of regressing. Normally, the left cardinal vein regresses, leaving only the right superior vena cava (RSVC). However, in PLSVC, the left vein remains and drains into the right atrium, most often via the coronary sinus. Anatomy *Left Superior Vena Cava (LSVC)*: In PLSVC, the LSVC travels along the left side of the mediastinum, parallel to the right superior vena cava (RSVC). It typically drains into the coronary sinus, which then empties into the right atrium. *Coronary Sinus*: The coronary sinus is typically enlarged in PLSVC because it receives blood from the LSVC. *Right Superior Vena Cava (RSVC)*: The RSVC is usually present and functions normally, draining deoxygenated blood from the upper body into the right atrium. *Associated Anomalies*: PLSVC is often associated with other congenital heart defects, such as atrial septal defects (ASDs), ventricular septal defects (VSDs), and abnormal connections between the coronary sinus and the left atrium. Echocardiographic Features *Parasternal Long-Axis View*: This view might show an enlarged coronary sinus as the LSVC drains into it. *Apical Four-Chamber View*: The coronary sinus, positioned posteriorly to the left atrium, appears dilated. Doppler imaging can trace the flow of blood from the LSVC into the coronary sinus and then into the right atrium. *Suprasternal View*: This view can help visualize the course of the LSVC along the left side of the mediastinum. The LSVC can be seen descending from the left brachiocephalic vein towards the heart. *Bubble Study*: A saline contrast study can help confirm the presence of a PLSVC. Bubbles injected into the left arm will appear first in the coronary sinus rather than the right atrium. *Color Doppler*: Doppler can show the flow pattern of blood entering the coronary sinus Clinical Implications While PLSVC is often asymptomatic, it can have clinical implications, particularly during central venous catheterization, pacemaker placement, or cardiopulmonary bypass surgery. It may also be associated with arrhythmias or other congenital heart defects. In summary, PLSVC is a congenital vascular anomaly that is typically diagnosed incidentally during echocardiography. Recognizing its characteristic features on echocardiography is crucial for accurate diagnosis and management. Your Queries: - LSVC Saline air Bubble contrast congenital vascular anomaly Left cubital vein Coronary Sinus Anatomy Echocardiography Bubble Study Left Superior Vena Cava (PLSVC) arrhythmias RSVC Parasternal Long-Axis View Long-Axis View #youtubevideos #anatomy #science #education #coronary #heartvalve #mitralvalve #plaxis #shortsyoutube #shortsviral #shortvideos #svc #ekoheartfoundation