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Table 1 Selected nerve conduction study results

From: Hereditary transthyretin amyloidosis: a case report

Sensory/motor amplitude of nerve studied

Initial study

9-Month follow-up after treatment initiation

Normal value

Median digit 2 SNAP (μV)

3.6

3.8

> 19

Ulnar digit 4 SNAP (μV)

9.0

3.6

> 14

Radial SNAP (μV)

4.8

4.2

> 11

Superficial fibular SNAP (μV)

NR

NR

> 4

Sural SNAP (μV)

NR

NR

> 4

Median APB CMAP (mV)

4.9

6.7

> 5.9

Ulnar ADM CMAP (mV)

4.4

4.7

> 7.9

Peroneal EDB CMAP (mV)

0.2

0.1

> 2.5

Tibial AH CMAP (mV)

0.2

0.1

> 1.1

  1. SNAP sensory nerve action potential, APB abductor pollicis brevis, CMAP compound muscle action potential, ADM abductor digiti minimi, EDB extensor digitorum brevis, AH abductor hallucis brevis