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Table 2 Electrophysiological data and perioperative analgesics requirement

From: Catheter-based distal sciatic nerve block in patients with Charcot-Marie-Tooth disease

Group

Current (mA)

Stimulus duration (ms)

Charge (mAxms)

Ropivacaine (mg)

Piritramide (mg/kg)

Paracetamol (mg/kg)

Patients with low threshold block n = 10

0.3 (0.2–0.7)

0.1(0.1)

0.03 (0,02-0.07)

370 (120-720)

0.07 (0-0.28)

24 (0-59)

Patients with high threshold block n = 7

1* (0.3-5)

1.0* (0.3-1.0)

0.6* (0.18-5)

100* (0-300)

0.05† (0-0.17)

0 (0-20)

Patients without block n = 10

    

0.2 (0.03-0.34)

18 (0-49)

  1. The values are given as median (range). Analgesics are given as total amount of requirement over 48 hours postoperatively.
  2. *p < 0.05 group ‘low’ vs ‘high’ threshold; Mann–Whitney U test.
  3. †p < 0.05 group ‘high threshold vs no block; Mann–Whitney U test.