If, however, we run into trouble with this, I would prefer to switch her to Brevibloc or an Esmolol drip and see how she does, as she may withdraw from the beta-blocker. 
If , however , we run into trouble with this , I would prefer to switch her to Brevibloc or an Esmolol drip and see how she does , as she may withdraw from the beta - blocker .