For patients w lbbb that convert to complete heart block intra op. I read first thing to do is atropine, followed by epi/dopa infusions, or transcutaneous pacing. My question is in complete heart block, atropine shouldn't work since it targets SA node and SA node doesn't pass. But epi or isoproterenol should since it is direct acting. Is this correct? Also what would you guys do if patient with a LBBB went into complete heart block in the middle of a case?