Left marginal vein (Vena marginalis sinistra)
Educational content only — not medical advice.
Anatomy
Ascends along the obtuse margin of the heart draining the lateral free wall of the left ventricle into the great cardiac vein.
Clinical notes
Serves as an alternative target for left ventricular pacing lead delivery during resynchronization device implantation when posterior veins are inaccessible.
Related structures
Educational references
FAQ
What is the role of the Left marginal vein?
Ascends along the obtuse margin of the heart draining the lateral free wall of the left ventricle into the great cardiac vein.
Why is the Left marginal vein clinically important?
Serves as an alternative target for left ventricular pacing lead delivery during resynchronization device implantation when posterior veins are inaccessible.
Source & license
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