Electrical delays in quadripolar leads with cardiac resynchronization therapy.
Scott M KoerberMichael E FieldDaniel B CobbMathew J GregoskiJohn L SturdivantMichael R GoldPublished in: Journal of cardiovascular electrophysiology (2021)
In LBBB, ΔRV-LV and ΔQLV are closely correlated suggesting that the proximal bipole and thus basal LV pacing sites should be selected when feasible. Greater variation in activation pattern is present in non-LBBB, so pacing sites should be individualized.