Cat-scratch disease (also commonly known as cat-scratch fever) is a bacterial infection that causes swelling and pain in the lymph nodes and loss of appetite. In most cases, it occurs after a scratch, bite, or lick from a cat or kitten. This infection is also called bartonellosis. Symptoms can vary from mild to severe...
A cataract is a partial or complete cloudiness in the lens in the eye. The lens is enclosed by the lens capsule. The cornea is the clear outer layer at the front of the eye.
Learn what to expect during cataract surgery and how it can improve your vision.
Cataract surgery helps you see better. It replaces your natural lens, which has become cloudy, with a clear artificial one. Types of cataract surgery include: Phacoemulsification. This is the most common type of surgery. The doctor makes a small cut in your eye and uses an ultrasound tool to break your cloudy lens...
A cataract is a painless, cloudy area in the lens of your eye. A cataract blocks light from reaching the retina (the nerve layer at the back of the eye) and may cause vision problems. Cataracts are common in older adults and are linked to aging. Smoking and exposure to too much sunlight are other risk factors. Cataracts...
Discusses vision problems caused by cataracts, a painless, cloudy area in lens of eye. Covers symptoms like fuzzy vision, glare from lamps or sun, and frequent changes to eyeglass prescription. Discusses treatment with surgery. Also discusses vision aids.
Keep your lenses clear by limiting the damage that causes cataracts, a condition that produces cloudiness in the eyes. According to research or other evidence, the following self-care steps may be helpful. Load up on lutein Supplement with 15 mg of this healthy antioxidant three times a week to improve vision in cases...
Primary Remedies Calcarea carbonica. This remedy may be indicated when a person developing cataracts has the feeling of looking through a mist. A person needing this remedy tends to be a responsible type, but feels overwhelmed when under stress and fears breakdown or disease. Chilliness, swollen glands, weight problems...
What are cataracts? Cataracts are a painless, cloudy area in the lens of the eye. They block the passage of light to the retina. Nerve cells in the retina detect light entering the eye and send nerve signals to the brain about what the eye sees. Because cataracts block this light, they can cause vision problems. What...
The day after surgery to remove a cataract, you will most likely be allowed to return to your normal activities. But you need to take certain precautions. Use eyedrops as prescribed by your doctor. Wash your hands before putting drops in your eye. Be careful not to touch your eye with your hands or the tip of the...
When should I consider having surgery? You may want to consider cataract surgery if your vision is blurry or causing other problems that interfere with things you want or need to do each day. Examples include reading and driving. Where should I go for surgery? The most important factor to consider is the skill and...
Guides through decision to have cataract surgery. Describes the surgery and how well it works. Includes when cataract surgery is normally recommended. Covers benefits and risks. Includes an interactive tool to help you make your decision.
Catecholamines are hormones made chiefly by the adrenal glands, located above the kidneys. The main catecholamines are adrenaline (epinephrine), noradrenaline (norepinephrine), and dopamine. Catecholamines increase heart rate, blood pressure, breathing rate, muscle strength, and mental alertness. They also reduce the...
A test for catecholamines measures the amount of the hormones epinephrine, norepinephrine, and dopamine in the blood. These catecholamines are made by nerve tissue, the brain, and the adrenal glands. Catecholamines help the body respond to stress or fright and prepare the body for "fight-or-flight" reactions. The...
Catecholamines (say "kat-uh-KOH-luh-meens") are hormones made mostly by your adrenal glands as a reaction to stress. When you feel stressed, these hormones increase heart rate, blood pressure, breathing rate, muscle strength, and mental alertness. They also lower the amount of blood that goes to the skin and intestines...
Catheter ablation is a procedure that treats heart rhythm problems by destroying tiny areas of heart tissue that are causing the problems. Guided by X-rays, the doctor inserts thin tubes called catheters into a blood vessel, typically in the groin or neck, and feeds them into the heart. Wires in the catheters help the...
Covers procedure to destroy (ablate) tiny areas of heart muscle causing fast heart rate. Includes radiofrequency ablation and cryoablation. Covers use for supraventricular tachycardia (SVT), atrioventricular reciprocating tachycardia (AVRT), Wolff-Parkinson-White (WPW) syndrome, and ventricular tachycardia.
How the heart's electrical system works In a normal heart, the sinoatrial (SA) node triggers the electrical impulse, causing the upper chambers (atria) to contract. The signal travels through the atrioventricular (AV) node to the atrioventricular bundle, which divides into the Purkinje fibers that carry the signal and...
Discusses nonsurgical procedure, called catheter ablation, for atrial fibrillation if medicine is not effective or not tolerated. Also discusses implanting a pacemaker. Looks at why procedure is done, how well it works, and possible risks.
Learn what catheter ablation is and how it is done to treat atrial fibrillation.
Learn about catheter ablation for supraventricular tachycardia and how this procedure is done.
Find out how you'll feel after a catheter ablation and how to take care of yourself at home.
Cardiac catheterization is done using a thin, soft tube called a catheter. A doctor inserts the catheter into a blood vessel, often in the wrist, groin, or neck, using a special needle. The doctor then slowly guides the catheter through blood vessels toward the heart. The catheter may be moved into the left side or...
For angiography, a thin, soft tube (catheter) is placed in a blood vessel in the groin (such as in the femoral vein). First, a doctor numbs the area with a local anesthetic. Then, a needle is placed into the blood vessel. A guide wire is put through the needle into the blood vessel and the needle is removed. The...
This is one position that can be used for intermittent catheterization. You may also hold the penis up. A caregiver may have you lie on your back.
This is one position that can be used for intermittent catheterization. A caregiver might have you lie on your back.
Types of catheters include: Straight catheter. This is a thin, flexible, hollow tube that is inserted through the urethra into the bladder. It allows the urine to drain out. A straight catheter is used for intermittent self-catheterization. Indwelling urinary catheter. This type of catheter remains in place all the time...
It was a week to forget. Cathy was working hard and training a new employee. She was enduring long meetings. She and her husband had just moved into a new house. And they were getting ready to go on a vacation trip in 2 weeks. "I had too much to do and too little time," Cathy says. "That means stress. And when I start...
Botanical names: Nepeta cataria How It Works The volatile oil in catnip contains the monoterpene, nepetalactone, which is similar to the valepotriates found in valerian, a more commonly used herbal sedative. 2 Human trials are lacking to prove the effectiveness of catnip for treating insomnia. It has been used...
Botanical names: Uncaria tomentosa How It Works According to test tube studies, oxyindole alkaloids in cat’s claw stimulate immune function. 2 Alkaloids and glycosides in cat’s claw have also demonstrated anti-inflammatory and antioxidant activity. 3, 4. Although clinical trials are lacking, cat’s claw has become very...
