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.
As breathing resumes, loud snoring starts. This may happen many times during a night. The more often it happens, the more severe your sleep apnea is. Sleep apnea is called either mild, moderate, or severe. When you stop breathing, the oxygen levels in your blood go down and carbon dioxide levels go up. This makes your heart and blood vessels work harder and can affect your heart rate and nervous system.