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Table 5 Drug related factors (N = 532)

From: Incidence and factors associated with failed spinal anaesthesia among patients undergoing surgery: a multi- center prospective observational study

Variables

Category

Frequency(n)

Percentage (%)

Type of local anesthetics(drugs)

Bupivacaine

All(532)

100%

Dose of bupivacaine in mg

5–10 mg

138

26%

11–18 mg

249

47%

19–25 mg

145

27%

Baricity of the LA

Hyperbaric

86

16%

Isobaric

446

84%

Use of adjuvants

Yes

Pethidine

92

61%

29%

Fentanyl

59

39%

Morphine

1

0.6

Total

152

 

No

380

71%