This improves blood flow to the heart. muscle and relieves symptoms (usually chest pain). Stents are used depending on certain features of the. artery blockage. Factors that affect whether a stent can. be used include the size of the artery and where the. blockage is.
Usually, this gasping or agonal breathing stops within about four minutes, which is why many experts have not recognized this phenomenon so far! Gasping is a survival reflex triggered by the brain and can increase the chances of survival for someone in cardiac arrest.
Human Physiology with 120+ answers. Not breathing mainly causes your blood CO2 to rise, which is a very powerful stimulus to breath in, so you just can't, you'll start breathing before passing out (at the least directly after losing conciousness although this is very unlikely) and won't die.