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Table 2 Anaesthetic characteristics in groups

From: Continuous spinal anaesthesia versus ultrasound-guided combined psoas compartment-sciatic nerve block for hip replacement surgery in elderly high-risk patients: a prospective randomised study

  CSA group (n = 35) PCSNB group (n = 35) P value
The application time of the anaesthetic technique (minutes, mean ± SD) 9.37 ± 1.72 13.91 ± 3.91 0.001
Duration of the block procedure (minutes, mean ± SD) 18.51 ± 1.82 35.54 ± 5.51 0.001
Duration of surgery (minutes, mean ± SD ) 101.37 ± 25.10 103.60 ± 17.48 >0.05
Intraoperative total blood loss (ml, mean ± SD ) 283.14 ± 68.66 329.57 ± 53.66 0.02
Maximum sensory level [median (min-max)] T9 (T6-T11) L2 (L1-S2)  
The number of patients requiring ephedrine 13 4 0.012
The number of patients requiring rescue analgesics in the first 24 hours postoperatively 11 30 0.0001
Total bupivacaine consumption (mg) 8.50 ± 1.24   
  1. Results expressed as mean ± SD or n.