Risk of POV, reported dichotomously by any discrete episodes of vomiting · participants aged 6 months or older undergoing surgical procedures under general anaesthesia
Supplemental IV crystalloid probably leads to lower risk of POV, reported dichotomously by any discrete episodes of… compared with control IV crystalloid volume (moderate certainty).
1 finding from 1 review
Risk of requiring pharmacologic treatment for PONV, reported dichotomously as the use of any medication intended to treat nausea or vomiting during the postoperative period · participants aged 6 months or older undergoing surgical procedures under general anaesthesia
Supplemental IV crystalloid probably leads to lower risk of requiring pharmacologic treatment for PONV, reported… compared with control IV crystalloid volume (moderate certainty).
1 finding from 1 review
Risk of unintended postoperative admission to hospital, reported dichotomously as admission to an inpatient unit of a participant after an intended ambulatory surgical procedure · participants aged 6 months or older undergoing surgical procedures under general anaesthesia
Supplemental IV crystalloid showed no clear difference in risk of unintended postoperative admission to hospital, reported… compared with control IV crystalloid volume (low certainty).
1 finding from 1 review
Risk of suffering a serious adverse event, reported dichotomously as the occurrence of any of: admission to high‐dependency unit, postoperative cardiac or respiratory complication, or death · participants aged 6 months or older undergoing surgical procedures under general anaesthesia
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Intervention not reported
All‐cause mortality (within 30 days) · adults undergoing cardiac surgery under general anaesthesia
The intervention showed no clear difference in all‐cause mortality (within 30 days) (low certainty).
1 finding from 1 review
Intervention not reported
Acute myocardial infarction (within 30 days) · adults undergoing cardiac surgery under general anaesthesia
The intervention showed no clear difference in acute myocardial infarction (within 30 days) (low certainty).
1 finding from 1 review
Intervention not reported
Cerebrovascular events (within 30 days) · adults undergoing cardiac surgery under general anaesthesia
It is very uncertain whether the intervention changes cerebrovascular events (within 30 days) (very low certainty).
1 finding from 1 review
Intervention not reported
Ventricular arrhythmias (within 30 days) · adults undergoing cardiac surgery under general anaesthesia
The intervention may leads to lower ventricular arrhythmias (within 30 days) (low certainty).
1 finding from 1 review
Intervention not reported
Atrial fibrillation or flutter, or both (within 30 days) · adults undergoing cardiac surgery under general anaesthesia
The intervention may leads to lower atrial fibrillation or flutter, or both (within 30 days) (low certainty).
1 finding from 1 review
Intervention not reported
Bradycardia (within 30 days; as defined by study authors, minimum heart rate < 60 beats per minute or requiring medication) · adults undergoing cardiac surgery under general anaesthesia
The intervention showed no clear difference in bradycardia (within 30 days; as defined by study authors, minimum… (low certainty).
1 finding from 1 review
Intervention not reported
Hypotension (within 30 days; as defined by study authors, minimum systolic blood pressure < 90 mmHg or requiring medication) · adults undergoing cardiac surgery under general anaesthesia
The intervention showed no clear difference in hypotension (within 30 days; as defined by study authors, minimum… (low certainty).
1 finding from 1 review
Early all‐cause mortality (within 30 days) · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
Perioperative beta‐blockers showed no clear difference in early all‐cause mortality (within 30 days) compared with placebo or standard care (low certainty).
1 finding from 1 review
Myocardial infarction (0 to 30 days) · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
Perioperative beta‐blockers may leads to lower acute myocardial infarction (within 30 days) compared with placebo or standard care (low certainty).
1 finding from 1 review
Cerebrovascular events (within 30 days) · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
Perioperative beta‐blockers showed no clear difference in cerebrovascular events (within 30 days) compared with placebo or standard care (low certainty).
1 finding from 1 review
Ventricular arrhythmias (within 30 days) · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
It is very uncertain whether perioperative beta‐blockers changes ventricular arrhythmias (within 30 days) compared with placebo or standard care (very low certainty).
1 finding from 1 review
Atrial fibrillation or atrial flutter, or both (within 30 days) · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
Perioperative beta‐blockers may leads to lower atrial fibrillation or atrial flutter, or both (within 30 days) compared with placebo or standard care (low certainty).
1 finding from 1 review
Bradycardia · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
Perioperative beta‐blockers may leads to higher bradycardia (within 30 days; as defined by study authors, minimum… compared with placebo or standard care (low certainty).
1 finding from 1 review
Hypotension · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)
Perioperative beta‐blockers probably leads to higher hypotension (within 30 days; as defined by study authors, minimum… compared with placebo or standard care (moderate certainty).
1 finding from 1 review
Nausea severity · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…
1 finding from 1 review
Patient satisfaction with treatment Measured by a validated scale · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found