Suggest treatment for atrial fibrillation with RVR
Atrial fibrillation with RVR. 82 year old white male. History of mini-strokes. Diagnosed with SSS- went in for an AV pacemaker. Came out with AFib with RVR. Now afib is at a rate 50% of the time at 100-120. and 2 % of the time up to 180. He is on lopressor XL bid 150mg. What would you suggest next?