Fig. 2.

Typical clinical course of dystonic storm. This figure demonstrates the typical clinical course of dystonic storm. Dystonic storm typically occurs in patients with known underlying dystonia seen on the left. Two-thirds of events are provoked by triggers such as infection or medication changes. Dystonia then worsens slightly from baseline, called the “dystonic storm prodrome”. If not detected or treated properly, dystonia rapidly escalates to “dystonic storm”, which usually lasts days to 2–4 weeks. With appropriate dystonia-specific and supportive therapies, most patients will gradually recover back to baseline (full recovery) or with residual deficits (partial recovery). Relapses are not uncommon