Paresthesia

A paresthesia (Greek παραίσθησις, par - aisthesis, " in addition to pass by " perception) is a non- painful sensation in the coverage area of a skin nerve without apparent adequate physical stimuli. It is by those affected usually as tingling, " pins and needles ", Pelzigkeit, tingling, itching, swelling and feeling of cold or heat sensation described. Probably based on paresthesia damage to the unmyelinated terminal branches of sensory nerves fibers and consequent spontaneous discharges, but they can also be caused by the damage of sensitive pathways of the central nervous system. The tactile sensation of the skin ( eg, tested with a spring) may be normal in the affected area thoroughly.

In contrast, arise electrifying discomfort caused by irritation of a nerve root. Disorders of the autonomic fibers can manifest as painful burning sensation ( causalgia ). A -reduced feeling when touching the skin, often perceived by stakeholders to deafness is referred to as hypoesthesia. The lack of tactile sensation is called anesthesia.

Paresthesia can be used as side-effects of acute poisoning and - permanent - even if diabetes or alcohol addiction in the context of polyneuropathies ("multiple nerve disorders " ) occur.

• Occur Painful burning as causalgia paresthesias mainly in acute and sub-acute circulatory disorders of the nerves, such as in peripheral arterial occlusive disease and atherosclerosis.
• Unpleasant electrifying and far away conducting imagine often in direct nerve stimulation represents about volatile during a lumbar puncture, temporarily at Plexusanästhesierung and electrical muscle tests (eg electromyography ), possibly longer lasting or recurring with incomplete nerve sectioning in the peripheral nervous system or suddenly inserting as sciatica with larger disc herniations.

They may also occur as a side effect of medications such as venlafaxine, buspirone, buprenorphine, mirtazapine, oxaliplatin, topiramate or paroxetine and other serotonin reuptake inhibitors. You can also adjust as psychogenic symptoms in a panic attack.