tailieunhanh - The Gale Encyclopedia of Neurological Disorders vol 1 - part 5

Viêm khớp, đặc biệt là viêm khớp dạng thấp, cũng có thể gây ra CTS. Một số bệnh nhân bị bệnh tiểu đường có thể nhạy cảm hơn để CTS bởi vì họ đã bị tổn thương thần kinh. Béo phì và thuốc lá hút thuốc được cho là làm nặng thêm các triệu chứng của CTS. | also cause CTS such as hypothyroidism problems with the pituitary gland and the hormonal imbalances that occur during pregnancy and menopause. Arthritis especially rheumatoid arthritis may also cause CTS. Some patients with diabetes may be more susceptible to CTS because they already suffer from nerve damage. Obesity and cigarette smoking are thought to aggravate symptoms of CtS. Much evidence suggests that one of the more common causes of CTS involves performing repetitive motions such as opening and closing of the hands or bending of the wrists or holding vibrating tools. Motions that involve weights or force are thought to be particularly damaging. For example the types of motions that assembly line workers perform such as packing meat poultry or fish sewing and finishing textiles and garments cleaning and manufacturing are clearly associated with CTS. Other repetitive injury disorders such as data entry while working on computers are also implicated in CTS. However some clinical data contradicts this finding. These studies show that computer use can result in bursitis and tendonitis but not CTS. In fact a 2001 study by the Mayo Clinic found that people who used the computer up to seven hours a day were no more likely to develop CTS than someone who did not perform the type of repetitive motions required to operate a keyboard. The two major symptoms of carpal tunnel syndrome include numbness and tingling in the thumb forefinger middle finger and the thumb side of the fourth finger and a dull aching pain extending from the wrist through the shoulder. The pain often worsens at night because most people sleep with flexed wrists which puts additional pressure on the median nerve. Eventually the muscles in the hands will weaken in particular the thumb will tend to lose strength. In severe cases persons suffering from CTS are unable to differentiate between hot and cold temperatures with their hands. Diagnosis Diagnosis of carpal tunnel syndrome begins with a physical