Table 4

Secondary end points

FactorESPB (n=50)PVB (n=50)P value
Median operating room morphine equivalents in mg (IQR)1.0 (1.0–1.9)1.0 (1.0–1.0)0.206
Number of antiemetics administered in PACU (%)0.116
 034 (68)42 (86)
 113 (28)5 (10)
 23 (6)2 (4)
Number of antiemetics administered from PACU to morning of postoperative day (POD) 1 (%)
 03 (60)3 (75)
 12 (40)0 (0)
 20 (0)1 (25)
POD of discharge for hospitalized subjects (%)
 15 (100)3 (75)
 20 (0)1 (25)
Median pain NRS scores morning of POD 1 (IQR)
 Highest5.0 (3.6–8.0)5.0 (4.0–7.0)0.357
 Lowest1.0 (0–3.0)1.0 (0–3.0)0.607
 Average3.0 (2.0–4.0)2.5 (1.0–5.0)0.438
 Current3.0 (2.0–4.8)3.0 (1.0–4.0)0.597
Median oxycodone use through morning of POD 1 in mg (IQR)5.0 (0–10)10 (0–15)0.323
Median Likert scale nausea morning of POD 1 (IQR)0 (0–0)0 (0–0)0.837
Median number of awakenings due to pain (IQR)0 (0–0)0 (0–1)0.244
Median duration of block in hour (IQR)17.7 (9.7–20.1)16.0 (11.9–19.9)0.833
Median PACU length of stay in min (IQR)124 (96–157)105 (87–126)0.047
  • Test used: Wilcoxon-Mann-Whitney test. Likert scale: 0=no nausea; 10=vomiting.

  • ESPB, erector spinae plane block; NRS, Numeric Rating Scale; PACU, postanesthesia care unit; PVB, paravertebral block.