Video 1
Video Recorded 5 months after the Last Botulinum Toxin Injection. The action of putting on lipstick causes the appearance of brief, involuntary, and repetitive movements of right arm and shoulder associated with a mild dystonic posturing of the right hand in particular of the fourth and fifth fingers. Moreover, it is interesting to note that the involuntary movements are more evident when the hand is moving from left- to right-hand side, and less on the opposite direction; for instance, dystonic tremor is enhanced when the body part moves in the opposite direction compared to the dystonia and decreases at the so-called null point. During the video, V. F. is injecting botulinum toxin type A (BTX-A) into teres major muscle using EMG guidance.
Video 2
Imitation of the action of putting on lipstick. While the Patient Is Mimicking the Action of Putting on Lipstick, No Myoclonic Jerks Appear.
Video 3
Action of drinking in a plastic glass. The Action of Drinking in a Plastic Glass Does Not Cause the Appearance of Myoclonic Jerks.
Video 4
Video Recorded 2 Months after EMG-Guided Botulinum Toxin Type A (BTX-A) Injection into the Pectoralis Major, Deltoid, and Teres Major Muscles. BTX-A treatment has led to an almost complete resolution of the involuntary movements.