Effect of erector spinae plane block with different doses of dexmedetomidine as adjuvant for ropivacaine on the postoperative quality of recovery after video-assisted thoracoscopic lobectomy surgery: a randomized controlled trial

Table 4 Secondary outcomes during the study period

	Group R	Group RD1	Group RD2	P-value
Total press times of PCIA	16.5(11.9–23.3)	12.5(7.3–17.6)^a	7.9(4.3–12.5)^ab	< 0.001
Time to first flurbiprofen(h)	8(6.0–9.0)	12.5(9.0-17.3)^a	20(18.5–22.5)^ab	< 0.001
Cumulative flurbiprofen consumption(mg)
0-24 h	16.0(12.0–24.0)	16.0(14.0–16.0)	8.0(0.0–8.0)^ab	< 0.001
24-48 h	8.0(8.0–16.0)	16.0(8.0–16.0)	8.0(0.0–8.0)	0.367
48-72 h	8.0(0.0–8.0)	8.0(0.0–8.0)	8.0(0.0–8.0)	0.689
PONV	6	2^a	0^ab	< 0.001
Bradycardia	0	0	1	0.786

Note: Data are presented as the mean ± standard deviation (SD), median (interquartile range) or as the number of patients, as appropriate
Abbreviations: PONV, postoperative nausea or vomiting
^aP < 0.05 versus group R. ^bP < 0.05 versus group DR1.

ISSN: 1471-2253