Effect of prophylactic infusion of norepinephrine on the prevention of hypotension during vertebroplasty: a randomized clinical trial

Table 3 Postoperative outcomes in the PACU

	Control group (n = 31)	Norepinephrine group (n = 32)	P value
Arterial blood gas
pH, median (IQR)	7.41 (7.40–7.41)	7.41 (7.39–7.41)	0.708
PO₂, median (IQR), mmHg	92 (90–96)	92 (90–97)	0.852
PCO₂, median (IQR), mmHg	39 (34–41)	38 (33–41)	0.557
Base excess, median (IQR), mM	2.1 (-0.6-2.3)	1.3 (0-2.3)	0.430
Lactic acid, median (IQR), mM	0.8 (0.6–1.8)	0.8 (0.6–1.4)	0.426
Arrhythmia [n (%)]	0 (0.0)	1 (3.1)	0.325
Nausea and vomiting [n (%)]	7 (22.6)	6 (18.8)	0.738
Postoperative pain VAS score, median (IQR)	2 (1–3)	2 (1–2)	0.959

Continuous variables presented as median (IQR) were compared using the Mann‒Whitney U test
Categorical variables presented as number (percentage) were compared using χ² or Fisher’s exact test, as appropriate

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