DYNASTY MEDICAL CARE

Current Perception Threshold (CPT) Current Perception Threshold (CPT) is the minimum amount of painless electrical stimulus that consistently elicits a nerve response. CPT objectively evaluates nerve function in a patient with suspected nerve pathophysiology, dysfunction, or degeneration. It provides positive findings at very early stages of degeneration; stages which might reveal a negative MRI or EMG/Nerve Conduction Study. Patients are frequently asymptomatic in the earliest stages.

The Neurometer generates a constant current stimulus by monitoring and compensating for tissue impedance variations. Progressive neuropathies affect sensory nerves before motor nerves. Affected sensory nerves pass through reversible states of hyperesthesia then hypoesthesia and anesthesia. These sensory impairments occur in specific nerve fiber sub-populations. CPT studies have the unique capacity to evaluate the full spectrum of sensory nerve function in all the major fiber sub-populations (including small nerve fibers and pain fibers). CPT is a psychophysical assessment of both central and peripheral nerve functions. It measures the detection threshold of accurately calibrated sensory stimuli. This procedure is intended to evaluate and quantify function in both large and small caliber fibers for the purpose of detecting neurologic disease. Sensory perception and threshold detection are dependent on the integrity of both the peripheral sensory apparatus and peripheral central pathway from the receptors, the sensory tracts, the primary sensory cortex; and to the association cortex.