Moderator band is a ubiquitous structure found inside right ventricular cavity , often overl0oked by cardiologists. God has created no structure without any purpose ! Moderator band has important role to play both in physiology and pathology .
Image credit and courtesey : Whoever has created
The table attempts to summarise the features of moderator band. 
The structural and functional behavior of moderator band in , RV cardiomyopathy , RV non compaction and arrhythmogenic RV dysplasia is not fully studied yet . Reference :Content is taken from various sources and with a personal input in few places. The anatomical data is largely taken from the pioneering work of cardiac pathologist and morphologist RH Anderson of United kingdom.
Here is an article from my institute Madras medical college published in Indian journal of Thoracic and Cardiovascualr surgery in 1982.
An autopsy study on moderator band by Paul Ravindran and Solomon victor
http://www.springerlink.com/content/g35616v662976g1r/
http://circ.ahajournals.org/content/67/6/1268.full.pdf+html http://www.ncbi.nlm.nih.gov/pubmed/20235167
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Dr.S.Venkatesan MD 
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