Читать книгу Musculoskeletal Disorders - Sean Gallagher - Страница 50

Hand‐arm vibration syndrome (HAVS) is a disorder associated with exposure to HAV, usually as the result of the prolonged use of powered hand tools. HAVS can be a painful and potentially disabling condition, with symptoms including pain, numbness, tingling, and nerve dysfunction. These symptoms can affect the hands, wrists, and forearms and may interfere with sleep. HAVS may also lead to a pallor or cyanosis of the fingers as well as numbness, tingling, and pain. Episodes typically last 5–30 min; however, the duration and severity of symptoms may increase with disease progression. Musculoskeletal symptoms can include decreased grip strength and, in some cases, Dupuytren’s contractions—a condition in which fingers in the hand (usually the two fingers farthest from the thumb)—are permanently contracted and cannot be fully straightened out.