Table 2.

Outcomes of the 88 patients and procedures

	Valid N	Median	Lower quartile	Upper quartile
Primary outcome
IV volume administered (ml)	88	1000	750	1750
Before	54	1000	750	1700
After	34	1000	750	2000
Secondary outcomes
Length of stay, ICU (days)	60	0.0	0.0	0.0
Before	35	0.0	0.0	0.0
After	25	0.0	0.0	0.0
Length of hospital stay (days)	60	5.0	4.0	6.0
Before	35	5.0	4.0	7.0
After	25	5.0	4.0	6.0
Postop. complications (Dindo-Clavien)
(Grade 0;1;2;3;4;5)	60	38;17;3;2;0;0
Before	35	21;9;3;2;0;0
After	25	17;8;0;0;0;0

IV: intravenous; ICU: Intensive care unit; Dindo-Clavien classification of postoperative complications: Grade 0: no complication. Grade I: Any deviation from the normal postoperative course without the need for pharmacological treatment or surgical, endoscopic and radiological interventions. Allowed therapeutic regimens are: drugs as antiemetics, antipyretics, analgesics, diuretics and electrolytes and physiotherapy. This grade also includes wound infections opened at the bedside. Grade II: Requiring pharmacological treatment with drugs other than such allowed for grade I complications. Blood transfusions and total parenteral nutrition are also included. Grade III: Requiring surgical, endoscopic or radiological intervention. Grade IV: Life-threatening complication. Grade V: Death of a patient