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The persistent left superior vena cava: anatomical study, pathogenesis and clinical considerations.
J Peltier1, C Destrieux, J Desme
1Laboratoire d'Anatomie, Faculté de Médecine, Université François-Rabelais, 2 bis Boulevard Tonnelé, 37032 Tours Cedex, France. jojo.peltier@caramail.com
Surgical and Radiologic Anatomy : SRA
|January 13, 2006
Summary
A persistent left superior vena cava (LSVC) anomaly was found during dissection, alongside an abnormal vertebral artery origin. This cardiac anomaly can complicate venous catheterization procedures.
Area of Science:
- Cardiovascular anatomy
- Embryological development
- Vascular anomalies
Background:
- Persistence of a left superior vena cava (LSVC) is a rare congenital cardiac anomaly.
- LSVC can lead to significant complications during central venous catheterization.
- Understanding variations in venous anatomy is crucial for interventional procedures.
Observation:
- A case of LSVC was identified during anatomical dissection.
- The anomaly was associated with an aberrant origin of the vertebral artery from the aortic arch.
- The LSVC drained into the right atrium via a dilated coronary sinus ostium.
Findings:
- Detailed external and internal morphological descriptions of the LSVC and associated vertebral artery anomaly were documented.
- Embryological basis and potential variations of this anomaly were reviewed.
- Absence of azygos system abnormalities was noted.
Implications:
- The presence of LSVC poses risks during subclavian or internal jugular vein catheterization.
- Accurate anatomical knowledge is vital for preventing iatrogenic complications.
- Radiological and clinical implications for patient management are discussed.