This was the best day yet. The midday ultrasound showed no atrial flutter and a heart rate of 195 bpm. Shortly after the ultrasound about 7 hours of straight 16-180bpm heart rate were observed. Then in the evening she went back to 235+ heart rate from doppler monitor, so not sure if it was back in flutter or just accelerated. Alison's parents arrived and instantly removed tons of stress from both me and Alison. Went to bed in hopes and prayers that improvement returned.