• stroke
  • Blood clots can form on these fatty deposits and fragments can detach and lodge in thinner arteries that supply blood to parts of the brain, causing a transient ischaemic attack (TIA, sometimes called a 'mini stroke') or a stroke. (nice.org.uk)
  • Some stenting also includes protective devices, to help to prevent any fragments loosened by the stent insertion from reaching smaller arteries and causing a stroke. (nice.org.uk)
  • temporary
  • Stimulation of the carotid sinus via a slap or a strike, to induce (usually temporary, but sometimes lethal) loss of consciousness is an effective self-defense technique, and is often taught in martial arts such as karate and Krav Maga. (wikipedia.org)