The proportion of patients receiving CAMC hospital admission versus discharged to home from the ED will be described between the two medication regimens using Chi-square analysis with continuity correction to determine if one regimen resulted in a greater percentage of home discharges directly from the ED (Secondary Aim-1). The effect of possible confounders including patient characteristics, ED events, achieving rate and/or rhythm control in the ED or deviation from medication regimen will be examined by describing patients with the confounder to those without the confounder of interest on the need for hospital admission using Chi-square with continuity correction analyses if data is categorical, t-test or Mann-Whitney U analysis, if data is continuous. Those confounders that are shown to associate with ED discharge to home will be included in a multivariate analysis (binomial logistic regression) to examine if medication regimen associates with ED discharge to home in the presence of confounders.