Table 2

Follow up clinical and EDX data, presented from the mildest to the severest

Case Number123456
Follow up data
Clinical data:
Time after onset8 years4 years2 years3 years3 years2.5 years
Pain (NRS)0/100/100/100/100/100/10
Muscle motor deficiency- left IS: 5/5Complete recovery: all muscles 5/5- right SA: 4/5
- right SSp: 4/5
- right IS: 4/5
- right deltoid: 5/5
- right elbow flexors/biceps: 4/5
Complete recovery: all muscles 5/5- right SA: 4/5
- bilat IS: 4/5
- right FPL/FDP/PQ: 3/5
- left FPL/FDP/PQ: 5/5
- bilat T: 5/5
- SA: right 5/5, left: 4/5
- bilat IS: 4/5
- right FPL: 3/5
- left FPL: 4/5
- bilat FDP2: 5/5
- right PQ: 4/5
- left PQ: 5/5
- bilat diaphragm: orthopnoea improved but still requiring oxygen at night
EDX data:
Time after onset8 years3.5 years2 years3 years3 years2.5 years
EDX/
the patient was evaluated in our centre but didn’t want to perform a new EDX as he felt totally fine
- normal interference pattern for deltoid, biceps and trapezius
- outstanding increase of motor units number and of CMAP
amplitude for SA
- very good increase of: motor units number with collateral reinnervation; and of CMAP
amplitude for SA,IS; T; PQ
- recovery limited by concomitant C6C7 root entrapment
/
the patient was evaluated in our centre but didn’t want to perform a new EDX as he felt totally fine
- very good increase of motor units number and collateral reinnervation in left PQ, right SA and right IS
- good but less significant increase of motor units in right PQ and left IS
- normal pattern in both T and right PQ
- excellent increase of: motor units number with direct and collateral reinnervation; with normal CMAP
amplitude for right SA, and both IS
- 50% recovery of PN
  • *HyperT1 signal: muscle fatty infiltration.

  • †HyperT2 Dixon signal: muscle oedema.

  • /, Missing data.

  • AIN, Anterior interosseous nerve; AM, Anconeal muscle; bilat, Bilateral; CMAP, Compound motor action potential; IS, Infraspinatus; FPL, Flexor pollicis longus; FDP2, Flexor digitorum profundus of digit 2; LABCN, Lateral antebrachial cutaneous nerve; LTN, Long thoracic nerve; PQ, Pronator quadratus; PN, Phrenic nerve; SSN, Suprascapular nerve; SAN, Spinal acccessory nerve; SA, Serratus anterior; SSp, Supraspinatus; T, Trapezius.