How is Neuropathy Diagnosed?

NCV

Peripheral neuropathy is nerve damage or dysfunction that is present in the hands or feet. Is is generally suspected by a medical provider when deficits in temperature, pain, and vibratory sensation exist. Nerve conduction studies and electromyography studies are used to diagnose neuropathy.

Nerve conduction studies measure the speed of conduction of an electrical impulse through a nerve. This procedure may be performed by a trained medical technician or medical provider. NCS involves the placement of electrodes on the extremity to be tested, then a small amount of electricity is applied to detect nerve conductivity. This is typically not painful.

Electromyography measures muscle response or electrical activity in response to a nerve’s stimulation of the muscle. This procedure is usually performed by a medical provider. EMG involves the insertion of fine needles into at least one muscle in the extremity to be tested. This may cause mild pain during needle insertion, but is generally not a painful procedure.

Generally, both procedures are done in sequence for comprehensive nerve conduction testing.  If nerve conduction tests demonstrate slowed conduction or nerve dysfunction, then investigation is necessary to determine the underlying cause of damage.  Generally, it is necessary to perform blood tests, and a complete history and physical examination to ascertain the etiology.

Some information obtained from http://www.hopkinsmedicine.org/healthlibrary/test_procedures/neurological/electromyography_emg_92,p07656/.

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Mediterranean Diet May Preserve Brain Structural Connectivity

meditterranean

The Mediterranean diet may help preserve structural connectivity in the brain in older adults, results of a French study hint.

Greater adherence to the Mediterranean diet was associated with preserved microstructure in extensive areas of the white matter up to a decade later, the study team found. And this appeared to be related to strong cognitive benefit, equal to up to 10 years of delayed cognitive aging for those with the greatest adherence, they say.

 “This is to our knowledge the first study investigating the associations of the Mediterranean diet to brain structure in humans, focusing not only on grey matter volume but also on white matter architecture (a more novel marker of brain health),” Cecilia Samieri, PhD, from University of Bordeaux, France, told Medscape Medical News. To read more http://www.medscape.com/viewarticle/849205#vp_1