Median approach group (n = 50) | Paramedian approach group (n = 50) | P value | |
---|---|---|---|
First-attempt success rate | 38 (76%) | 46 (92%) | 0.029* |
Location time (median, interquartile), seconds | 201.6 (169.3–219.5) | 227.7 (183.7–231.8) | 0.037* |
Total operation time (median, interquartile), seconds | 247.4 (225.3–272.8) | 251.3 (228.7–276.8) | 0.145 |
Anesthesia adverse reactions | |||
Nerve stimulation | 2 | 1 | 0.742 |
Epidural catheter bleeding | 3 | 2 | 0.686 |
Low back pain | 6 | 1 | 0.026* |
Satisfaction | |||
Very satisfied | 15 | 35 | 0.032* |
Satisfied | 32 | 14 | |
Dissatisfied | 3 | 1 |