Restrictive versus conventional ward fluid therapy in non-cardiac surgery patients and the effect on postoperative complications: a meta-analysis

Table 1 Study characteristics

Study	Country	N	Type of surgery	Restricted fluid regimen^a	Conventional fluid regimen^a	Primary outcome
RCTs
Lobo, 2002	UK	20	Hemicolectomy	2000 ml	3000 ml	Gastric emptying
Muller, 2009	Switzerland	156	Open colonic	0 ml	2000 ml	Complications
Vermeulen, 2009	Netherlands	62	Major abdominal	1500 ml	2500 ml	Postoperative LOS
Non-randomized studies
de Aguilar-Nascimento, 2009	Brazil	61	Major abdominal	< 30 ml/kg	30–50 ml/kg	Complications
Morgan, 2016	USA	378	Pancreatic	1800 ml	Non-restricted	-
Walsh, 2008	UK	106	Midline laparotomy	< 3000 ml	> 3000 ml	Complications
Zargar-Shoshtari, 2008	New Zealand	100	Colonic	667 ml	2167 ml	Complications

Legend: N number of patients, RCTs randomized clinical trials, LOS length of stay
^aDefinition in amount of fluid per day

ISSN: 2047-0525