[HSF] Right atrial eMaze lesions

[Prasanna Simha M]

Hope this picture is clear.
For those who are confused about the right atrial Isthmus discussion,
this is ad verbatim description by Anderson
 The "second isthmus is confined between the mouth of the inferior
caval vein and the leaflets of the tricuspid valve. This is the
inferior isthmus, or cavo-tricuspid, isthmus. It has trabecular,
membranous, and vestibular components11 (Figure 6). The membranous
part is often expanded to form a prominent diverticulum. Although
usually known as the sub-Eustachian sinus, with the heart in
attitudinally correct position, the sinus is seen to be sub-Thebesian,
lying directly beneath the mouth of the coronary sinus"
Prasanna

-- 
Prasanna Simha M
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