Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,938 questions · 1,994 findings · 246 reviews · Headline outcomes only

No studies found 490 · 24.6%GRADE not reported 71 · 3.6%Very low 669 · 33.6%Low 446 · 22.4%Moderate 264 · 13.2%High 54 · 2.7%

Phototherapeutic keratectomy vs alcohol delamination

Recurrence after complete or partial resolution · people with recurrent corneal erosion syndrome without previous surgical intervention

Phototherapeutic keratectomy showed no clear difference in recurrence after complete or partial resolution compared with alcohol delamination (low certainty).

1 finding from 1 review

Peppermint 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

Isopropyl alcohol vs usual care

Nausea duration (measured as nausea‐free at end of treatment) Assessed by time (minutes) to 50% reduction in nausea score Scale from: 0 to 120 · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…
1 finding from 1 review

Isopropyl alcohol vs usual care

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

Isopropyl alcohol probably leads to lower use of rescue antiemetics Assessed by proportion requiring antiemetics compared with standard treatment (moderate certainty).

1 finding from 1 review

Isopropyl alcohol vs usual care

Patient satisfaction with treatment · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…

It is very uncertain whether isopropyl alcohol changes patient satisfaction with treatment compared with standard treatment (very low certainty).

1 finding from 1 review

Isopropyl alcohol vs usual care

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

Isopropyl alcohol vs Normal saline

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

Isopropyl alcohol vs Normal saline

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

It is very uncertain whether isopropyl alcohol changes use of rescue antiemetics Assessed by proportion requiring rescue… compared with saline (very low certainty).

1 finding from 1 review

Isopropyl alcohol vs Normal saline

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

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