Difference between revisions of "Heart"

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5 bytes added ,  04:24, 6 October 2010
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===Atrioventricular node===
===Atrioventricular node===
Approach 1:
Approach 1 (Peter method):
*Open the LVOT - if it hasn't been opened yet.
*Open the LVOT - if it hasn't been opened yet.
*Cut a section of that includes the right coronary cusp (of the aortic valve) and about 1.5 cm below it (this has the membranous septum and the superior muscular septum).<ref>PF. August 21, 2009.</ref>
*Cut a section of that includes the right coronary cusp (of the aortic valve) and about 1.5 cm below it (this has the membranous septum and the superior muscular septum).<ref>PF. August 21, 2009.</ref>
**This section should then be serially sectioned in the axis of the VLOT.
**This section should then be serially sectioned in the axis of the VLOT.


Approach 2:
Approach 2 (Virmani method):
#View from right atrium: AV node is between the ''coronary sinus'' and ''membranous septum''.
#View from right atrium: AV node is between the ''coronary sinus'' and ''membranous septum''.
#View from LVOT: Inferior to the posterior (non-coronary) cusp of the aortic valve.
#View from LVOT: Inferior to the posterior (non-coronary) cusp of the aortic valve.
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#**This section should then be serially sectioned in the axis of the VLOT.
#**This section should then be serially sectioned in the axis of the VLOT.


Approach 3:
Approach 3 (Location by triangle of Koch):
*Atrioventicular (AV) node is in the ''Triangle of Koch''.
*Atrioventicular (AV) node is in the ''triangle of Koch''.


Triangle of Koch according to Virmani<ref name=virmani_p17>Virmani et al. Cardiovascular Pathology. 2nd Ed. 2001. P.17.</ref> is the ''floor of the RA'' and:
Triangle of Koch according to Virmani<ref name=virmani_p17>Virmani et al. Cardiovascular Pathology. 2nd Ed. 2001. P.17.</ref> is the ''floor of the RA'' and:
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*Tricuspid valve annulus = "inferior".
*Tricuspid valve annulus = "inferior".
*Coronary sinus = "posterior".
*Coronary sinus = "posterior".
Notes (Approach 3):
*The above makes little sense to me.


Notes:
Notes:
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