Table II. The development of operation parameters in liver resection using the water-jet over the course of 16 years.

	1991–1996	1997–2002	2003–2007
N	96	120	134
Pringle-rate (%)	46	48	6
Operating time (min)	214	294	181
Blood loss (ml)	1442.6	1337.9	523.7
EC per patient	1.86	0.71	0.46