Last week I had an attack of Svt which lasted for about 8 hours with a pulse rate averaging at about 152 beats a minute. It was eventually stopped in A and E with the dreaded anoisine injection. Just over 18 months ago I had an ablation which was not completely successful and I have been taking 2.5 mgs of Bisoporol since then. The attack has left me feeling exhausted and I am just beginning to feel normal again. I can find very little documented on the after effects of a Svt attack and would be interested to find out other people's reactions or find out where I can read more facts. I suspect that there is little follow up ever as I have never sought help once recovered!