Table 5.
Motor evoked potentials findings in subjects with myelitis.
| Muscles | MEP parameters | Patient #4 | Patient #5 | Normal values | ||||
|---|---|---|---|---|---|---|---|---|
| Baseline | 3 month follow-up | 6 month follow-up | Baseline | 3-month follow-up | 6-month follow-up | |||
| AH | Cortical Amp, mV | R = 0.4; L = Abs | R = 2.1; L = 1.9 | R = 3.4; L = 3.3 | R = 0.1; L = 0.2 | R = 0.7; L = 0.8 | R = 1.0; L = 1.0 | ≥3.0 |
| Peripheral Amp, mV | R = 6.4; L = 6.1 | R = 5.7; L = 5.9 | R = 5.4; L = 5.7 | R = 5.2; L = 6.4 | R = 6.0; L = 6.8 | R = 6.2; L = 7.5 | ≥4.0 | |
| CMCT, ms | R = 16.9; L = – | R = 15.3; L = 17.3 | R = 14.6; L = 16.4 | R = 31.7; L = 24.3 | R = 27.8; L = 23.1 | R = 24.9; L = 17.3 | ≤16.7 | |
| PMCT, ms | R = 24.3; L = 23.4 | R = 23.5; L = 22.9 | R = 22.7; L = 22.5 | R = 23.9; L = 23.0 | R = 24.1; L = 22.9 | R = 24.2; L = 22.6 | ≤29.5 | |
| ADM | Cortical Amp, mV | R = 4.4; L = 4.2 | R = 4.3; L = 4.3 | R = 4.3; L = 4.2 | R = 3.1; L = 3.7 | R = 4.4; L = 4.7 | R = 4.8; L = 5.4 | ≥4.0 |
| Peripheral Amp, mV | R = 6.2; L = 6.3 | R = 5.9; L = 5.9 | R = 5.9; L = 5.8 | R = 7.1; L = 8.3 | R = 7.3; L = 8.2 | R = 7.4; L = 8.8 | ≥5.0 | |
| CMCT, ms | R = 6.0; L = 5.7 | R = 5.3; L = 4.9 | R = 4.8; L = 4.5 | R = 12.8; L = 11.0 | R = 10.6; L = 8.6 | R = 8.6; L = 7.4 | ≤6.7 | |
| PMCT, ms | R = 14.7; L = 14.6 | R = 14.4; L = 14.0 | R = 14.1; L = 13.6 | R = 14.0; L = 14.2 | R = 13.6; L = 14.4 | R = 13.4; L = 14.6 | ≤16.5 | |
ADM, abductor digiti minimi muscle; AH, abductor hallucis muscle; Amp, amplitude; CMCT, central motor conduction time; MEP, motor evoked potentials; PMCT, peripheral motor conduction time. Normative values were defined by examining a group of 30 healthy subjects.