Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,509 questions · 2,666 findings · 288 reviews

No studies found 743 · 27.9%GRADE not reported 327 · 12.3%Very low 775 · 29.1%Low 484 · 18.2%Moderate 279 · 10.5%High 58 · 2.2%

Aromatherapy vs placebo

Nausea duration (nausea‐free at end of treatment) Measured by participant self‐report or medical or nursing observation · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…

It is very uncertain whether aromatherapy changes nausea duration (nausea‐free at end of treatment) Assessed by… compared with placebo (very low certainty).

1 finding from 1 review

Aromatherapy vs placebo

Rescue antiemetic · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…

Aromatherapy may leads to lower proportion requiring rescue antiemetics Assessed by numbers of… compared with placebo (low certainty).

1 finding from 1 review

Aromatherapy vs placebo

Adverse events (common reactions to aromatherapy include skin rashes, dyspnoea, headache, cardiac arrhythmias, hypotension, hypertension or dizziness) · 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

Aromatherapy vs placebo

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

Peppermint vs placebo

Nausea duration (nausea‐free at end of treatment) Measured by participant self‐report or medical or nursing observation · 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

Peppermint vs placebo

Adverse events (common reactions to aromatherapy include skin rashes, dyspnoea, headache, cardiac arrhythmias, hypotension, hypertension or dizziness) · 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

Perioperative alcohol cessation intervention vs treatment

Postoperative complications after perioperative intervention (e.g. wound‐related complications, secondary surgery, cardiopulmonary complications, admission to intensive care) defined by need for treatment · adult surgical patients consuming 3 or more units of alcohol per day

Perioperative alcohol cessation intervention probably leads to lower postoperative complications after perioperative intervention (e.g.… compared with treatment (moderate certainty).

1 finding from 1 review

Perioperative alcohol cessation intervention vs treatment

In‐hospital and 30‐day mortality · adult surgical patients consuming 3 or more units of alcohol per day

Perioperative alcohol cessation intervention showed no clear difference in in‐hospital and 30‐day mortality compared with treatment (low certainty).

1 finding from 1 review

Perioperative alcohol cessation intervention vs treatment

Successful quitters (number of abstainers) at the end of the programme (with or without validation by interview, breath test, or alcohol markers) · adult surgical patients consuming 3 or more units of alcohol per day

Perioperative alcohol cessation intervention probably leads to higher successful quitters (number of abstainers) at the end of the… compared with treatment (moderate certainty).

1 finding from 1 review