Echocardiology pp 355-361 | Cite as

The Detection and Assessment of Straddling and Overriding Atrioventricular Valves by Two-Dimensional Echocardiography

  • J. F. Smallhorn
  • G. Tommasini
  • F. J. Macartney
Part of the Developments in Cardiovascular Medicine book series (DICM, volume 13)


Sixteen patients with a straddling tricuspid and two with a straddling mitral valve were identified by two-dimensional echocardiography. In all but one the atrioventricular valves (AV) appeared at the same level indicating absence of the ventriculo-atrial septum.

Straddling was determined by identifying subvalvular apparatus from one AV valve in both chambers. Overriding was greater than 50% in 12, and less than 50% in 5, with one having no detectable overriding.


Tricuspid Valve Ventricular Septal Defect Ventricular Septal Defect Interventricular Septum Atrioventricular Valve 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Martinus Nijhoff Publishers, The Hague 1981

Authors and Affiliations

  • J. F. Smallhorn
  • G. Tommasini
  • F. J. Macartney

There are no affiliations available

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