Had a Medtronic implant in 2017 following an ablation. Worked silently (and well) until its battery died in 2020. Until then it showed minimal Afib (under 0.3%). My Cardiologist is setting me up for a replacement since I took myself off Eliquis Dec 23, 2021 due to suspected rare but severe side effect: muscle weakness in legs. Cannot PROVE a connection, but after a week of being off Eliquis, I am now walking 2.5-3.5 miles a day when before I couldn't make 0.1 miles before having to sit and rest my legs.