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Table 2 Spinal block characteristics, analgesic data, and side effects

From: Relation between fentanyl dose and patient state index during spinal anesthesia for elective cesarean section

  Fentanyl 10 μg Fentanyl 15 μg Fentanyl 20 μg P value
Block height Th4 (Th2–Th4) Th3 (Th2–Th4) Th4 (Th2–Th4) NS
Apgar 1 min 8 (7–9) 8 8 NS
Apgar 5 min 10 (9–10) 9 9 (9–10) NS
Umbilical vein pH 7.34 ± 0.01 7.33 ± 0.03 7.32 ± 0.02 NS
Nausea 0/10 (0 %) 3/10 (30 %) 2/10 (20 %) NS
Minimum respiratory rate 12 (10–17) 12.5 (8–16) 11 (8–19) NS
  1. Values are presented as median (range), mean ± SD, or n (%)
  2. NS not significantly different