Something to memorize...
"Nodoventricular (NV) bypass tracts were described pathologically in 1937 by Mahaim and Benatt. Later, fibres connecting the AV node and the right bundle branch - nodo-fascicular (NF) - were recognised. Now it is known that the majority of clinically apparent bypass tracts thought to be NV or NF, are actually slowly conducting atrio-ventricular or atrio-fascicular pathways. True NV or NF tracts are extremely rare."
