Carpal tunnel syndrome
CTS) is a condition that affects the hand and the wrist. It can result from injury to the wrist - dislocated or broken wrist bones or sprains. Carpal Tunnel Syndrome can also be caused by diabetes, rheumatoid arthritis or thyroid disease. Those who are at increased risk are computer users, violinists, golfers, meat packers, assembly line workers, hair stylists and mechanics since they perform the same hand movements repeatedly.
The median nerve controls some of the muscles that move the thumb. It also provides sensations of temperature, pain and touch from the hand to the brain as well as sweating of the hand. CTS results when the tunnel walls are compressed, thereby putting pressure on the nerve. Carpal tunnel syndrome is particularly associated with tasks that involve:
Repeated wrist movement
Awkward hand positions
Stress on the palm
Use of vibrating tools
Lubrication is essential for the normal and smooth functioning of the tendons. With excessive or repetitive activity on the carpal tunnel, the lubrication system may malfunction. It may not produce enough fluid or it may produce a fluid with poor lubricating qualities. This failure creates friction between the tendon and its sheath causing inflammation and swelling of the tendon area.
The swelling squeezes the median nerve in the wrist or carpal tunnel. Repeated episodes of inflammation cause fibrous tissue to form. The fibrous tissue thickens the tendon sheath and hinders tendon movement. This makes moving of the wrist or the hand painful.
Symptoms of this condition usually start gradually - frequent burning, tingling, pins and needles or itching and numbness in the palm of the hand and the fingers especially the thumb and the index and middle fingers. In time, these symptoms can spread to the arm and shoulder. They tend to worsen at night or first thing in the morning since many people sleep with flexed wrists.
Carpal tunnel syndrome can affect one or both hands and the severity of the symptoms can vary. The hand muscles may become weakened, making it difficult to grip objects. It can also result in permanent loss of feeling. Fine finger movements, such as writing, may become increasingly difficult. In extreme cases patients might feel tingling during the day and the muscles at the base of the thumb may waste away. In some chronic cases people are unable to tell between hot and cold by touch.
Carpal tunnel exercises should be done by individuals who perform hand-intensive jobs. These exercises should be performed at the start of each workday and during a break. It reduces the amount of pressure on the median nerve in the carpal tunnel and prevents injury. A few important exercises for avoiding the carpal tunnel syndrome are discussed below:
Electromyography or EMG is a diagnostic test that understands the physiological of muscles thereby assessing their health. Electromyography involves inserting a needle electrode through the skin into the muscle. This electorde detects electrical activity in the muscles and nerves controlling the muscles. A patient is asked to flex or contract the muscles so that the response of the muscle to the nerve stimuli is observed. An electromyograph is used to detect and measure electric potential that is generated by the contracting muscles. Other indicators to the proper functioning of the muscles and their corresponding nerves are the size, duration and frequency of electric signals received from them. EMG is often conducted along with a nerve conduction velocity test.
The EMG test is used to diagnose any possible weakness or impaired muscle strength due to neurological problems. Some discorders that can lead to abnormal readings on EMG test are cervical spondylosis, myasthenia gravis, carpal tunnel syndrome, myopathy, Brachial plexopathy, Guillain Barre syndrome, sciatic nerve dysfunction and mononueritis multiplex. EMG test aids in differentiating between a muscle and nerve disorder. The muscle may feel tender after the EMG test with localised bruising.
Thyroid is a gland in the neck overlying the windpipe that regulates the speed of metabolic processes by producing a hormone with the eponymous name thyroxin. Thyroid is an endocrine gland. The thyroid gland which resembles a butterfly, sits astride the trachea. Its secretion - thyroxin, a hormone that regulates the metabolic activity of the body. Too much thyroxin races the metabolism resulting in weight loss, temperature elevation, nervousness and irritability. On the other hand, too little thyroxin slows down the metabolism rate resulting in deep voice, weight gain and water retention. This can result in retardation in physical growth and mental development in children. Both conditions equally affect hair and skin growth, bowel function and menstrual flow.
The thyroid gland is often enlarged whether it is secreting too much hormone, too little or even when it is functioning normally. The thyroid is controlled by the pituitary gland, which secretes Thyroid Stimulating Hormone (TSH) in response to the amount of thyroxin in the blood. TSH increases the amount of thyroxin secreted by the thyroid and also causes the thyroid gland to grow.
Hyperthyroid Goiter : If the amount of TSH is high, the thyroid will both enlarge and secrete too much thyroxin. The result is termed as Hyperthyroidism with a goiter. Graves' disease is the most common form of this disorder.
Euthyroid goiter : If dietary iodine is insufficient, too little thyroxin will be secreted and the pituitary will sense the deficiency and produce more TSH. The thyroid gland will enlarge enough to make sufficient thyroxin.
Hypothyroid goiter: If dietary iodine is severely low, even an enlarged gland will not be able to make enough thyroxin. The gland may keep growing under the influence of TSH, but it may never make enough thyroxin.
An endocrinologist who specializes in the endocrine system can also be consulted for thyroid problems and diseases. Specialists who deal with thyroid problem are called thyroidologists. Thryoidologist and endocrinologist are specially trained doctors who diagnose and treat diseases affecting the thyroid gland. A thyroid specialist continues specialized education focused on thyroid issues after obtaining a Masters degree in medicine. He is qualified and trained to treat conditions that are complex and involve many systems within the body that may be affected due to thyroid imbalance.
A primary care doctor too often misses the diagnosis of a thyroid disease. Sometimes primary care doctors refer patients to a thyroid specialist when there is problem in the endocrine/ hormone systems. Thyroid specialists treat patients with too much or too little thyroid hormone. The thyroid specialist helps the patients to reach a hormone balance by replacing or blocking thyroid hormone. Thyroid specialists also receive special training to manage patients with thyroid growths or thyroid cancer and enlarged thyroid glands. There are times when the services of a thryoidologist or an endocrinologist become absolutely necessary.
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Diseases, Symptoms, Tests and Treatment arranged in alphabetical order:
Bibliography / Reference
Collection of Pages - Last revised Date: February 20, 2020