PMC9987631_01
- Sequential CMAPs studies. Serial NCS on weeks 1, 4, and 24 showed gradual recovery of motor DLs; Median nerve: 8.6, 5.7, and 3.4 ms. Ulnar nerve: 5.5, 4.2, and 2.9 ms. Common Peroneal nerve: 10, 9.2, and 5 ms. Also show gradual recovery of CMAP amplitude at weeks 1, 4, and 24; Median nerve: 9.9, 12.7, and 14.8 mv, ulnar nerve: 5.7, 10.4, and 12 mv, common peroneal nerve: 1.6, 4 and 8.3 mv. CMAP - compound muscle action potential. DL - distal latency, ms - milli-second, mv - milli-volt
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F1
Repeated NCS on week 4 and later on week 24, showed remarkable and rapid recovery of DLs and CMAPs amplitude which improved in week 4 by more than 50% (Figure 1).
- Sequential sensory nerve action potentials studies. Serial NCS on weeks 1,4 and 24 showing mild changes in sensory OLs; Median nerve: 3, 2.4, and 2 ms. Ulnar nerve: 2.2, 2.4, and 2.1 ms. Sural nerve: 3, 3, and 3 ms. But SNAPs amplitude recovery at weeks 1, 4, and 24 was significant in upper limbs; Median nerve: 5, 15, and 36 microv. Ulnar nerve: 13,15 and 44 microv. Sural nerve: 29, 18, and 17 microv. SNAP - sensory nerve action potential. OL - onset latency, ms - milli-second, microv - micro-volt
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F2
Similar improvement was noted in sensory onset latencies (OLs) and SNAPs amplitude but involved the upper limbs only (Figure 2).