Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

884 questions · 892 findings · 68 reviews · Anaesthesia

No studies found 118 · 13.2%GRADE not reported 156 · 17.5%Very low 187 · 21%Low 270 · 30.3%Moderate 119 · 13.3%High 42 · 4.7%

ProSeal vs Classic laryngeal mask airway (LMA)

Sore throat · adult patients (18 years of age and older) for positive pressure ventilation undergoing elective surgery

ProSeal showed no clear difference in sore throat compared with classic laryngeal mask airway (LMA) (low certainty).

1 finding from 1 review

ProSeal vs Classic laryngeal mask airway (LMA)

Regurgitation · adult patients (18 years of age and older) for positive pressure ventilation undergoing elective surgery

ProSeal showed no clear difference in regurgitation compared with classic laryngeal mask airway (LMA) (low certainty).

1 finding from 1 review

Inhalational anaesthesia vs intravenous anaesthesia

Nausea · adults undergoing transabdominal robotic assisted laparoscopic surgery

Inhalational anaesthesia may leads to lower presence of nausea compared with intravenous anaesthesia (low certainty).

3 findings from 1 review

Inhalational anaesthesia vs intravenous anaesthesia

Nausea and vomiting · adults undergoing transabdominal robotic assisted laparoscopic surgery

It is very uncertain whether inhalational anaesthesia changes nausea‐vomiting rate at 1 hour compared with intravenous anaesthesia (very low certainty).

2 findings from 1 review

Double vs single‐injection technique

Primary anaesthesia failure (incomplete sensory block) · Adult patients undergoing hand, wrist or forearm surgery

Double leads to lower primary anaesthesia failure (incomplete sensory block) compared with single‐injection technique (high certainty).

1 finding from 1 review

Multiple vs single‐injection technique

Secondary analgesia failure : Tourniquet pain · Adult patients undergoing hand, wrist or forearm surgery

Multiple showed no clear difference in secondary analgesia failure ‐ tourniquet pain compared with single‐injection technique (high certainty).

1 finding from 1 review

Multiple vs double‐injection technique

Secondary analgesia failure: Intraoperative sedation required · Adult patients undergoing hand, wrist or forearm surgery

Multiple showed no clear difference in secondary analgesia failure ‐ intraoperative sedation required compared with double‐injection technique (high certainty).

1 finding from 1 review

Multiple vs double‐injection technique

Secondary analgesia failure : Tourniquet pain · Adult patients undergoing hand, wrist or forearm surgery

Multiple leads to lower secondary analgesia failure ‐ tourniquet pain compared with double‐injection technique (high certainty).

1 finding from 1 review