DISTANT SPREAD OF TOXIN EFFECT. Postmarketing reports indicate that the effects of DYSPORTÂ® and all botulinum toxin products may spread from the area of injection to produce symptoms consistent with botulinum toxin effects.
Not to be confused with Agonal heart rhythm. Agonal respiration, gasping respiration or agonal breathing is an abnormal pattern of breathing and brainstem reflex characterized by gasping, labored breathing, accompanied by strange vocalizations and myoclonus. Possible causes include cerebral ischemia, extreme hypoxia or even anoxia.
Stockbyte/Stockbyte/Getty Images. Agonal respiration goes by many names, including gasping respiration, Cheyne-Stokes respiration and death rattle. As the name indicates, these breaths (respirations) sound as though they are causing agony. When agonal respirations occur, the end of life is near.