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

Table 2 Incidences of hemodynamic instabilities after implantation of bone cement

	Control group (n = 31)	Norepinephrine group (n = 32)	P value
Incidence of hypotension [n (%)]	14 (45.2)	4 (12.5)	0.005*
Number of hypotensive episodes, median (IQR)	0 (0–2)	0 (0–0)	0.005*
Number of vasopressors, median (IQR)	0 (0–1)	0 (0–0)	0.004*
Tachycardia [n (%)]	2 (6.5)	1(3.1)	0.545
Bradycardia [n (%)]	13 (41.9)	11 (34.4)	0.627

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
Compared with the control group, *P < 0.05

ISSN: 1471-2482