Persistence of left supracardinal vein in an adult patient with heart-hand syndrome and cardiac pacemaker.

@article{Nmec2008PersistenceOL,
  title={Persistence of left supracardinal vein in an adult patient with heart-hand syndrome and cardiac pacemaker.},
  author={Jan Němec and Steven M. Heifetz},
  journal={Congenital heart disease},
  year={2008},
  volume={3 3},
  pages={
          219-22
        }
}
A patient with a sporadic heart-hand syndrome, which includes thumb hypoplasia, septum primum atrial septal defect, and cleft mitral valve is described. During attempted placement of a pacemaker lead, persistence of left superior and inferior vena cava was found in addition to the right-sided caval veins. This corresponds to persistence of left-sided supracardinal vein present during fetal development.