Aneurisma Cerebral

If you'd like to see more scientifically accurate 3D medical images, subscribe to our channel:    / nucleushealthvideose   MEDICAL ANIMATION TRANSCRIPT: Your heart pumps blood to your brain through blood vessels in your neck. These blood vessels, called arteries, branch into even smaller arteries, which carry blood to your brain cells. Some of these small arteries join together to form a pathway known as the Circle of Willis. The walls of the arteries contain special muscle and elastic layers, which help them adapt to the blood they pump. Sometimes diseases, injuries, or birth defects can cause a weak spot in the artery wall in the Circle of Willis. These weak spots usually form where arteries branch. Over time, the pressure of blood flowing through the arteries further accentuates the weak spot. Constant blood pressure can cause the weak spot to inflate and form a bulge, called a brain aneurysm. This type of brain aneurysm is the most common and is called a saccular or fence-type aneurysm. As the aneurysm grows, it can push against nearby brain tissue or nerves. Blood may also leak from the aneurysm. If its wall becomes too thin, the aneurysm can burst or rupture, spilling high-pressure blood around the brain. The blood presses on brain tissue and can damage brain cells. Chemicals in the leaking blood can irritate other arteries in the brain and cause them to narrow. As a result, the brain can swell, leading to serious brain injury. Common symptoms of a ruptured aneurysm include: sudden, severe headaches, sometimes called thunderclap headaches; vision problems such as blurred or double vision; nausea and vomiting; a sore or stiff neck; or confusion. An unruptured brain aneurysm may not cause any symptoms, but large, unruptured aneurysms can cause the following symptoms: headache and pain near or behind the eye; double or blurred vision; a drooping eyelid; and numbness or weakness on one side of the face. A ruptured brain aneurysm is a medical emergency. If you are experiencing symptoms, seek medical attention immediately. If you have a ruptured brain aneurysm, your doctor may recommend surgical clips or endovascular coiling. For surgical clips, your surgeon will make an opening in your skull near your aneurysm and place a small metal clip on the stalk, which connects the aneurysm to your artery. The clip blocks the blood flow in your aneurysm. In endovascular coiling, your doctor will place a plastic tube called a catheter into a large artery in your groin. Using live X-ray guidance, your doctor will advance the catheter through your arteries until it reaches the aneurysm. Through the catheter, your doctor will insert one or more flexible wires into your aneurysm. The wires will coil and cause a blood clot to form inside your aneurysm, blocking it from the rest of your artery. Similarly, if you have a brain aneurysm that is not ruptured, your doctor may recommend either surgical clips or endovascular coiling. Additionally, if your aneurysm is small and not causing pain or other symptoms, your doctor may monitor it for a period of time before performing any of these procedures. ANH13099es