Do you tailor your choice of beta-blocker to the specific arrhythmia mechanism, or do you default to a cardioselective agent regardless of clinical context?

Since we do not have good comparative data among beta-blockers, I tend to use the best tolerated. Cardioselective beta-blockers, particularly those with low central nervous system (CNS) penetration, certainly have an advantage in that regard. There are a few exceptions. Acebutolol, an infrequently u...