1. Crystalloid volumes used in included studies.
| Study | Timing | Comparator group | Intervention group(s) |
| Ali 2003 | Preoperative | RL 2 mL/kg | RL 15 mL/kg |
| Amireh 2009 | Preoperative | No crystalloid bolus | RL 10 mL/kg |
| Ashok 2017 | Intraoperative | RL 10 mL/kg | RL 30 mL/kg |
| Behdad 2011 | Intraoperative | RL 4 mL/kg | RL 10 mL/kg |
| Intraoperative | RL 20 mL/kg | ||
| Bennett 1999 | Preoperative | NS 1 to 2 mL/kg | NS 15 mL/kg |
| Bhukal 2012 | Intraoperative | NS 4 mL/kg | NS 10 mL/kg |
| Chaudhary 2008 | Preoperative | RL 2 mL/kg | RL 12 mL/kg |
| Chauhan 2013 | Preoperative | RL 10 mL/kg | RL 30 mL/kg |
| Chohedri 2006 | Preoperative | NS 2 mL/kg | NS 20 mL/kg |
| Cook 1990 | Preoperative | No crystalloid bolus | RL 20 mL/kg |
| Preoperative | RL 20 mL/kg with 1 g/kg dextrose | ||
| Dagher 2009 | Preoperative | RL 10 mL/kg | RL 30 mL/kg |
| Egeli 2004 | Postoperative | No crystalloid bolus | D5RL 60 to 120 mL/hour |
| Elgueta 2013 | Intraoperative | RL 10 mL/kg/hour | RL 30 mL/kg/hour |
| Elhakim 1998 | Intraoperative | No crystalloid bolus | RL 1000 mL |
| Goodarzi 2006 | Intraoperative | RL 10 mL/kg/hour | RL 30 mL/kg/hour |
| Gwak 2007 | Intraoperative | RL 6 mL/kg/hour | RL 18 mL/kg/hour |
| Hashish 2007 | Preoperative | RL 10 mL/kg | RL 30 mL/kg |
| Heidari 2012 | Preoperative | No crystalloid bolus | RL 10 mL/kg |
| Heshmati 2004 | Intraoperative | No crystalloid bolus | RL 4 mL/kg/hour |
| Holte 2004 | Preoperative | RL 15 mL/kg | RL 40 mL/kg |
| Ismail 2017 | Intraoperative | RL 10 mL/kg | RL 30 mL/kg |
| Keane 1986 | Mixed | No crystalloid bolus | Intraoperative RL 1000 mL then postoperative 1000 mL D5W |
| Lambert 2009 | Preoperative | No crystalloid bolus | RL 900 to 1000 mL |
| Lee 2009 | Preoperative | RL 5 mL/kg/hour | RL 30 mL/kg/hour |
| Magner 2004 | Preoperative | RL 10 mL/kg | RL 30 mL/kg |
| Maharaj 2005 | Preoperative | RL 2 mL/kg per hour fasted | RL 3 mL/kg per house fasted |
| McCaul 2003 | Intraoperative | No crystalloid bolus | RL 1.5 mL/kg per hour fasted |
| Intraoperative | D5RL 1.5 mL/kg per hour fasted | ||
| Monti 1999 | Preoperative | No crystalloid bolus | RL 1000 mL |
| Murshed 2012 | Preoperative | RL 1.5 mL/kg per hour fasted | RL 15 mL/kg |
| Najafianaraki 2010 | Preoperative | RL 2 mL/kg per hour fasted | RL 2 mL/kg per hour fasted then RL 10 mL/kg |
| Onyando 2014 | Preoperative | No crystalloid bolus | RL "maintenance" rate per hour fasted (maximum 1000 mL) |
| Ooi 1992 | Preoperative | No crystalloid bolus | 20 mL/kg 4% dextrose/0.18% saline solution |
| Paganelli 2008 | Intraoperative | NS 10 mL/kg/hour | NS 1000 mL bolus then 10 mL/kg/hour |
| Sharma 2010 | Preoperative | RL 10 mL/kg | RL 20 mL/kg |
| Preoperative | RL 30 mL/kg | ||
| Shin 2007 | Preoperative | RL 2 mL/kg | RL 20 mL/kg |
| Singh 2013 | Preoperative | No crystalloid bolus | RL 30 mL/kg |
| Soleimani 2018 | Preoperative | NS 1.5 mL/kg/hour | NS 1.5 mL/kg/hour then RL 5 mL/kg |
| Intraoperative | NS 1.5 mL/kg/hour then RL 5 mL/kg | ||
| Spencer 1988 | Intraoperative | No crystalloid bolus | RL 1000 mL |
| Yilmaz 2014 | Intraoperative | NS 10 mL/kg/hour | NS 20 mL/kg/hour |
| Yogendran 1995 | Preoperative | Plasmalyte 2 mL/kg | Plasmalyte 20 mL/kg |
| Yoon 2008 | Intraoperative | RL 2 mL/kg | RL 18 mL/kg |
D5RL: dextrose 5% in Ringer's Lactate; D5W: dextrose 5% in water, NS: normal saline, RL: Ringer's Lactate