PRVEP

Acronym	Definition
PRVEP	Pattern Reversal Visual Evoked Potential (opthamology)
PRVEP	Pre-Rigged Vehicles/Equipment Package

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In some rare but disabling conditions such as multiple sclerosis and optic neuritis, PRVEP records provide characteristic electrophysiologic findings even in clinically silent lesions.

TON: Traumatic optic neuropathy, CT: Computed tomography Table 2: PRVEP findings in 12 patients with ethambutol toxicity PRVEP findings Number of patients PRVEP before the PRVEP after 1 month cessation of the drug of cessation of the drug Bilateral P100 delay (*) 5 3 Reduced N75-P100 4 2 amplitude (*) and undetected waveforms Both delayed P100 latency 3 1 and reduced amplitude (*) PRVEP response improved in 6 patients (50%) including increase in the N75-P100 amplitude and reduced P100 latencies after 1 month (but improved values still beyond twice the standard deviation).

Pattern-reversal VEPs (PRVEPs) records of such 58 patients obtained in the study period were retrospectively analyzed.

Evaluating the clinical applications of visual evoked potentials in patients presenting with visual dysfunctions - A retrospective study

These findings justify the undertaking of a future study to determine the effect of type 2 diabetes on amplitudes of PRVEP in more children and adolescents.

The PRVEPs were recorded from an active electrode placed over the occipital region (O1, O2, Oz), with a reference electrode at Cz.

Visual-evoked potentials in children and adolescents with newly diagnosed diabetes

PRVEP mean P100 latency comparisons among controls, overweight, and obese revealed significant differences too (P < 0.01) by one-way ANOVA for both the eyes, with significant increase found for overweight as compared to controls and also for obese when compared to controls (post hoc test).

PRVEP P100 latencies also exhibited prolongation (for both eyes) in obese and overweight individuals as compared to the controls (Table 3 and Figure 3).

BAEP: Brainstem auditory evoked potential, SD: Standard deviation Table 3: Mean PRVEP P100 latency and mean N75-P100 amplitude among controls, overweight, and obese Groups Number of Mean P100 latency (ms[+ or -]SD) individuals R (*) L (*) Controls 25 (M=13, F=12) 104.46[+ or -]3.22 104.57[+ or -]3.24 Overweight 30 (M=14, F=16) 108.36[+ or -]4.84 108.43[+ or -]6.05 Obese 30 (M=13, F=17) 109.35[+ or -]4.96 108.4[+ or -]5.02 Groups Number of Mean N75-P100 amplitude individuals ([micro]v[+ or -]SD) R L Controls 25 (M=13, F=12) 5.29[+ or -]2 5.13[+ or -]2.05 Overweight 30 (M=14, F=16) 4.23[+ or -]2.6 4.28[+ or -]2.53 Obese 30 (M=13, F=17) 5.2[+ or -]1.98 5.15[+ or -]2.05 R: Right eye, L: Left eye, M: Males, F: Females.

Visual and brainstem auditory evoked potentials in obese and overweight individuals