Table 2.

Reported complications

	Total	Epi	PNB	WPD	Pir
Number (n [%])	769	48 [6.2]	185 [24.1]	333 [43.3]	203 [26.4]
Reported complications
Systemic (nausea/dizziness/sedation/constipation) (n [%])		1 [2.1]	– [–]	22 [6.6]	31 [15.3]
Senso-motoric weakness (n [%])		10 [20.8]	17 [9.1]	– [–]	– [–]
Technical problems (dislocation/loss of i.v. access) (n [%])		4 [8.3]	34 [18.4]	7 [2.1]	10 [4.9]

Epi epidural analgesia, PNB continuous peripheral nerve block, WPD Wurzburg Pain Drip patient-controlled analgesia (PCA), Pir piritramide PCA

Data are given as absolute numbers (with percentage)