tachycardia

I afterwards had periodical attacks of intermittence but never any tachycardia, at least none that lasted more than a few seconds.

But, as I rose, I suddenly felt acute pain along the sternum; at the same time began a strong crisis of tachycardia.

Consequently the convulsions, tachycardia, and coma had to be ignored.

In tachycardia there is an irritation of the accelerator nerves to the heart, in brachycardia of the inhibitory nerves.