<prompt> Reverse splitting of 2nd hea sound heard in -RBBBLBBBTricuspid stenosisAR  <response>: In LBBB, Left ventricular depolarisation is late than RV depolarisation, so A2 appeares late than P2. Causes of Reverse splitting : RV pacemaker WPW syndrome Eisen menkers syndrome AS LVF LBBB Ref : Harrisons 20th edition pg 1448 