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Table 2 Adverse events

From: Adverse events associated with continuous interscalene block administered using the catheter-over-needle method: a retrospective analysis

Adverse event

n (%), (95%CI)

Onset time (h), median

Catheter leakage

0

 

Insufficient effect case

13 (10.7), (5.0–16.3)

Dyspnea

4 (3.3), (−0.4–6.9)

30.8

Hoarseness

12 (9.8), (4.3–15.3)

29.5

Dizziness

15 (12.3%), (6.3–18.2)

26.5

Cough reflex during drinking

3 (2.5), (−0.9–5.8)

28.5

Ptosis

2 (1.6), (−1.3–4.6)

40

Total

42 (34.4), (26–42.7)

28.5

  1. 95% CI: 95% confidence interval