Welcome to our cozy corner of the web where we unravel the mysteries of health, one heartbeat at a time. Today, we’re talking about a topic that’s serious but, fear not, we’ve got Umedoc in our corner to keep things light and informative! The Unwelcome Guest: Heart Attacks Picture this: Your heart, the diligent pump of…
What is cardiac arrest? Cardiac arrest occurs when the heart suddenly stops functioning. This is because the heart’s electrical system is not working. Electric signals are how the heart controls the rate and rhythm. During cardiac arrest, the heart does not beat as it normally does and breathing may even stop too. Cardiopulmonary resuscitation (CPR)…
What is a Heart Attack? A heart attack, or myocardial infarction (MI), occurs when coronary arteries are completely blocked, leading to insufficient blood flow to the heart muscle. When tissues do not get enough blood flow and oxygen for an extended period of time, they necrose (die) and cannot perform their function. There are many…
What is atrial fibrillation? Atrial fibrillation is the most common cardiac arrhythmia. Cardiac remodeling results in changes to the atria that eventually cause the change of rhythm. Atrial fibrillation typically occurs when an initiating trigger excites an ectopic focus in the atria, this allows for an unsynchronized firing of electrical impulses which causes fibrillation of…
