What would happen if AF was left untreated?

As a medical professional with expertise in various health conditions, I can provide you with an informed response to the question about the consequences of leaving atrial fibrillation (AF) untreated. If atrial fibrillation (AF) is left untreated, several serious health complications can arise. Here's a breakdown of the potential outcomes: 1. Stroke: AF increases the risk of stroke significantly because the irregular heart rhythm can allow blood to pool and clots to form in the atria. These clots can then travel to the brain, leading to a stroke. 2. Heart Failure: Over time, an irregular heartbeat can weaken the heart muscle and affect its ability to pump blood effectively, which may result in heart failure. 3. Blood Clots: As mentioned, the chaotic electrical signals in AF can lead to blood pooling and clot formation. If a clot detaches, it can travel through the bloodstream and cause a blockage in a blood vessel, potentially leading to a stroke or peripheral artery disease. 4. Reduced Quality of Life: AF can cause symptoms like fatigue, shortness of breath, chest pain, and lightheadedness, which can severely impact a person's daily life and overall well-being. 5. Tachycardia-Induced Cardiomyopathy: Persistent rapid heart rates due to AF can lead to a condition called tachycardia-induced cardiomyopathy, which is a heart muscle disease that makes the heart less efficient at pumping blood. 6. Other Health Issues: Untreated AF can also lead to other health issues such as cognitive decline and an increased risk of dementia. It's important to note that not all cases of AF are the same, and the severity and progression can vary from person to person. However, the risks associated with untreated AF are significant, and it's crucial for individuals with this condition to work closely with their healthcare provider to manage it effectively.

If left untreated, the side effects of AFib can be potentially life threatening. AFib makes it harder for the heart to pump blood effectively. With the blood moving more slowly, it is more likely to form clots. If the clot is pumped out of the heart, it could travel to the brain and lead to a stroke.