Table 1

Summary of clinical and laboratory profiles (group I)

Patient/ sex/ageSite/cause of painArea of hypoaesthesiaMotor examinationNerve conduction
1/F/54L foot. Minor injury at workL leg. Stocking distributionL foot: give way weaknessS:bilat sural and superficial peroneal Ns normal
M: bilat peroneal and post. tibial Ns normal
2/M/35L arm. Minor injury at workIrregular glove up to L shoulderL upper limb: give way weaknessS/M: bilat median, ulnar and radial Ns normal
3/F/35R arm and neck. Minor injury at workIrregular glove up to neck, sparing thenar eminenceR upper limb: give way weaknessS/M: bilat median and ulnar Ns normal
4/M/21R hand dorsum. Minor injury at workMedial palm and dorsum of R handMild weakness of right hand with painS/M: bilat median, ulnar and radial Ns normal
5/F/27R forearm. Minor injury at workIrregular glove in R handR upper limb: give way weakness S/M: bilat median and ulnar Ns normal
6/F/28R arm. Physical exerciseMedial R upper extremity, L forearm, R footNormalS/M: bilat ulnar Ns normal
7/F/29L calf and foot. Minor injury at workLateral L foot and posterior legMild wasting of L EDB and gastroc muscles. Mild weakness of L foot dorsiflexionS: absent L sural, ↓ ampl. L sup. peroneal N. M: bilat peroneal Ns normal
8/F/27L ankle. Twisting at workLateral L footNormalS: Absent L sural N response
9/M/53R arm. Minor injury at workIrregular glove up to R wristNot testable in R upper limb because of painS/M: mildly prolonged distal latency L median N. Normal bilat ulnar Ns.
10/F/31Both hands. Strenuous manual workIrregular bilateral glove up to wristsNormalS/M: bilat median Ns normal
11/F/28Both arms. Manual workIrregular glove up to R forearmBoth upper limbs: global give way weakness S/M: bilat median and ulnar Ns normal
12/F/30Both hands, R shoulder, L elbow. Manual workL shoulder, posterior aspectNormalS/M: bilat median and ulnar Ns normal
13/F/42R hand. Manual workR face, hemithorax, shoulder, medial arm and forearmR forearm and hand: give way weaknessS/M: bilat median and ulnar Ns normal
14/F/35L arm. No precipitating eventIrregular glove up to L elbowNormalS/M: residual L carpal tunnel. Normal ulnar Ns
15/F/43R arm. Minor injury at workIrregular glove up to R posterior forearmR upper limb: global give way weakness S/M: bilat median, ulnar and radial Ns normal
16/F/37L cheek after eye infectionL cheek, ear and lower jaw sparing lipNormalSymmetric blink reflexes
17/F/36R arm. Fall at workIrregular area in R shoulder.R upper limb: global give way weakness S/M: bilat median and ulnar Ns normal
18/F/50Low back. Minor injury at workR lumbar area and lateral thigh, leg and footR lower limb: global give way weakness S: bilat sural Ns normal.
M: bilat peroneal Ns normal. Normal H refl.
19/F/32R foot. Sold fracture lateral malleolus at workLateral R foot and legNormalS: bilat sural N normal.
M: bilat peroneal Ns normal
20/F/37Both arms. Strain at workDorsum of both hands: part of radial and ulnar nerve territoriesNormalS/M: bilat median and ulnar Ns normal
21/F/58R wrist and thumb. Strain at workIrregular glove up to R wristR upper limb: global give way weakness S/M: bilat median and ulnar Ns normal
22/F/39L arm. Fall at workL shoulder, neck and upper limb sparing ring fingerNot testable in L upper limb because of painS/M: bilat median and ulnar Ns normal
23/F/48Low back. No precipitating eventLateral thighs and buttocks bilateral, R lateral abdomenBoth lower limbs: global give way weakness S: bilat femoro cutaneous, sural, ulnar Ns normal.
M: ↓amp.CMAP, no F response in L peroneal N
24/F/53L hand. Repetitive motion at workIrregular area, dorsal and palmar L handL upper limb: global give way weaknessS/M: bilat median Ns normal
25/F/45R arm. Mild stretch at workL shoulder and medial half of L middle, ring , and little fingersNormalS/M: bilat median and ulnar, axillary Ns normal
26/M/34R arm. Lifting at workRadial dorsum of the R handNormalS/M: bilat median and radial Ns normal
27/F/34L arm. Minor injury at workL hemibody. also deafness on the leftL hemibody: global give way weakness including rotation of head to LS: bilat sural and median Ns normal. M: bilat peroneal and median Ns normal
 
EMG
 
QST
L lower limb: normalBilateral feet: normal
L upper limb: interrupted effort (even without pain)L hand: inconsistent mild warm hypoaesthesia
R upper limb: interrupted effort (even without pain)Bilateral hands: normal
Not performedR thenar and radial dorsum of the hand: mild cold and warm hypoaesthesia
L upper limb: interrupted effort (even without pain)Bilateral forearms: normal
Not performedbilateral arms and hands: normal
L lower limb: normalBilateral legs: normal
Not performedL foot: warm and cold hypoaesthesia
Not performedBilateral hands and feet: normal
R hand: normalR thenar: mild cold and warm hypoaesthesia
R upper limb: interrupted effort (even without pain)R shoulder: mild warm hypoaesthesia
Not performedBilateral hands and shoulders: normal
Not performedBilateral hands: normal
Residual dennervation L APBBilateral hands: normal
R upper limb: interrupted effort (even without pain)Bilateral hands: normal
Not performedBilateral cheeks: normal
R upper limb: interrupted effort (even without pain)Bilateral hands and shoulders: normal
L lower limb: interrupted effort (even without pain)R lateral thigh: mild cold and warm hypoaesthesia
Not performedR lateral foot: erratic warm hypoaesthesia
Not performedBilateral hands: normal
R hand: interrupted effort (even without pain)Bilateral hands: erratic cold and heat hyperalgesia
Not allowed by patientBilateral thenar eminences: mild cold and warm hypoaesthesia
Spontaneous activity (fibrillation in L EDB)Bilateral hands and feet: normal
L upper limb: interrupted effort (even without pain)Bilateral hands: normal
Not performedBilateral shoulders and hands: normal
R forearm: interrupted effort (even without pain)Bliateral hands: normal
L upper limb interrupted effort (even
without pain)
Bilateral hands and feet: normal
  • R=right; L=left; S=sensory; M=motor; N=nerve; bilat = bilateral; Ns = nerves.