I've been doing a bit of reading on the internet. I looked up digoxin fetal atrial arrythmia on Google (where else?), and this abstract seemed to fit the situation best (I think) and described favourable outcomes. This is what seemed particularly relevant and encouraging to me:
A predominance of 2:1 atrioventricular conduction was observed...Eleven [of 15] fetuses were treated with maternal digoxin, and five subsequently converted to sinus rhythm...In our experience most fetuses with therapy-resistant atrial flutter and absence of 1:1 atrioventricular conduction do not experience congestive heart failure and do not need to be delivered prematurely. After birth, conversion to sinus rhythm was easily achieved in all neonates.
One thing that didn't really fit though was that the mean heart rates in this study were quite a bit higher than in our baby. It still concerns me how low the heart rate was on Tuesday.
I think I'm feeling a few effects of the digoxin today -- a bit headachy and less energy than usual. I just don't feel normal, but it's not too bad.
