Table 2 Comparison of the number of patients rescued by propofol, remifentanil and diltiazem, puncture point and block plane between the two groups (case).

From: Opioid-free anesthesia with ultrasound-guided quadratus lumborum block in the supine position for lower abdominal or pelvic surgery: a randomized controlled trial

Project/group

Q group (n = 62)

C group (n = 60)

χ2

P

Propofol

7

5

0.300

0.583

Remifentanil

2

0

1.968

0.161

Diltiazem

3

2

0.176

0.675

Point of puncture

Unilateral/bilateral

19/43

15/45

0.483

0.487

No plane during needling

2

60

0.476

0.490

Sensory block level

 T6

11

0

11.700

0.001

 T7

49

0

79.249

0.000

 L1

46

0

71.460

0.000

 L2

14

0

15.305

0.000

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