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There are several approaches to scoliosis surgery, but all use modern instrumentation systems in which hooks and screws are applied to the spine to anchor long rods. The rods are then used to reduce and hold the spine while bone that is added fuses together with existing bone.
Focal seizures (also called partial seizures [citation needed] and localized seizures) are seizures which affect initially only one hemisphere of the brain. [citation needed] The brain is divided into two hemispheres, each consisting of four lobes – the frontal, temporal, parietal and occipital lobes.
Bone cancer symptoms. Possible symptoms of bone cancer include: Bone pain: Pain is the most common sign of bone cancer, and may become more noticeable as the tumor grows. Bone pain can cause a dull or deep ache in a bone or bone region (e.g., back, pelvis, legs, ribs, arms).
Virtual Ports, Ltd. (http://www.virtual-ports.com) is a medical device company developing and marketing instruments to improve minimally invasive laparoscopic procedures.
The EndoGrab retraction system reduces the number of ports needed for surgery by eliminating the need for traditional hand held retraction. For the surgeon, this simple solution results in the need for less auxiliary personnel, a decreased overall surgery cost, and more control over the surgery. The EndoGrab also offers added benefit to the patient who will experience less post-operative discomfort and scarring.
The EndoGrab is an internally anchored, hands-free retracting device that is introduced at the start of surgery through a 5mm trocar by means of a proprietary Applier tool. The Surgeon uses the Applier to attach the EndoGrab to both the organ requiring retraction and to the internal abdominal wall, thereby removing the organ from the operative field. The Applier is then removed and the port is free for use by other instruments.
3D video animation produced by Virtual Point Multimedia (http://virtual-point.com)
Vasculitis is an inflammation of your blood vessels. It causes changes in the walls of blood vessels, including thickening, weakening, narrowing and scarring. These changes restrict blood flow, resulting in organ and tissue damage. There are many types of vasculitis, and most of them are rare. Vasculitis might affect just one organ, such as your skin, or it may involve several. The condition can be short term (acute) or long lasting (chronic). Vasculitis can affect anyone, though some types are more common among certain groups. Depending on the type you have, you may improve without treatment. Or you will need medications to control the inflammation and prevent flare-ups. Vasculitis is also known as angiitis and arteritis.
To understand congenital heart defects, it's helpful to know how a healthy heart works. Your child's heart is a muscle about the size of his or her fist. The heart works like a pump and beats 100,000 times a day. The heart has two sides, separated by an inner wall called the septum. The right side of the heart pumps blood to the lungs to pick up oxygen. The left side of the heart receives the oxygen-rich blood from the lungs and pumps it to the body. The heart has four chambers and four valves and is connected to various blood vessels. Veins are blood vessels that carry blood from the body to the heart. Arteries are blood vessels that carry blood away from the heart to the body.
A needle is inserted into a joint for two main indications: aspiration of fluid (arthrocentesis) for diagnosis or for relief of pressure, or injection of medications. In practical terms, most injections into joints consist of a glucocorticoid, a local anesthetic, or a combination of the two. Occasionally saline is injected into the joint to diagnose a joint injury. This topic will review the basic technique of inserting a needle into a joint and the main indications for intraarticular steroid injections. The same techniques apply for injection of the less commonly used hyaluronate viscosupplementation agents into knees, hips, and perhaps shoulders.
Nosebleeds are common. Most often they are a nuisance and not a true medical problem. But they can be both. Nosebleed care Sit upright and lean forward. By remaining upright, you reduce blood pressure in the veins of your nose. This discourages further bleeding. Sitting forward will help you avoid swallowing blood, which can irritate your stomach. Pinch your nose. Use your thumb and index finger to pinch your nostrils shut. Breathe through your mouth. Continue to pinch for five to 10 minutes. Pinching sends pressure to the bleeding point on the nasal septum and often stops the flow of blood. To prevent re-bleeding, don't pick or blow your nose and don't bend down for several hours after the bleeding episode. During this time remember to keep your head higher than the level of your heart. If re-bleeding occurs, blow out forcefully to clear your nose of blood clots and spray both sides of your nose with a decongestant nasal spray containing oxymetazoline (Afrin, Mucinex Moisture Smart, others). Pinch your nose again as described above and call your doctor. When to seek emergency care The bleeding lasts for more than 20 minutes The nosebleed follows an accident, a fall or an injury to your head, including a punch in the face that may have broken your nose
Nystagmus is a vision condition in which the eyes make repetitive, uncontrolled movements. These movements often result in reduced vision and depth perception and can affect balance and coordination. These involuntary eye movements can occur from side to side, up and down, or in a circular pattern.
If the artery were severed, blood would flow out unimpeded, although the artery wall would contract in an effort to stop the bleeding. After losing >30% of one's blood volume blood pressure would start dropping, and with less pressure the rate of bleeding would go down. At this stage if the blood loss wasn't replaced the person could die. Losing halve to two thirds of one's blood volume is considered to be fatal even if later on blood transfusion is attempted. One's total blood volume at 70ml/kg is estimated to be between 5 to 7 liters, so that makes a blood loss of between 2,5 to 4,7 L.