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Table 4 Progression of the sensory block over the first 20 min

From: Onset and recovery of ultrasound guided out-of-plane versus in-plane interscalene block in arthroscopic shoulder surgery

VariableGroup I N = 30Group O N = 30P value
Sensory rootTime
C65 min15 (50%)30 (100%)0.006
10 min30 (100%)30 (100%)-
15 min30 (100%)30 (100%)-
20 min30 (100%)30 (100%)-
C75 min7 (23.3%)10 (33.3%)0.390
10 min12 (40%)16 (53.3%)0.121
15 min23 (76.7%)25 (83.3%)0.519
20 min30 (100%)30 (100%)-
C85 min2 (6.7%)3 (10%)0.640
10 min5 (16.7%)10 (33.3%)0.136
15 min12 (40%)10 (33.3%)0.592
20 min27 (90%)29 (96.7%)0.301
T15 min0 (0%)1 (3.3%)0.313
10 min2 (6.7%)10 (33.3%)0.01
15 min10 (33.3%)15 (50%)0.190
20 min25 (83.3%)28 (93.3%)0.228
  1. Data presented as number of patients (percentage)
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