What do systematic reviews say?

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  57 studies · 12260 participants
  Moderate

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  7 studies · 1259 participants
  Very low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  14 studies · 1529 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  10 studies · 1656 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 participants
  GRADE not reported

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 904 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  22 studies · 3679 participants
  Moderate

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 99 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  11 studies · 1313 participants
  Very low

Transverse groin incision vs vertical groin incision

Transverse groin incision may leads to lower surgical site infection (10 to 28 days) compared with vertical groin incision (low certainty).

• Transverse versus vertical groin incision for femoral artery approach 2020 · Cochrane Headline outcomes only
  RR 0.25 [0.08, 0.76]
  1 study · 283 participants
  Low

Transverse groin incision vs vertical groin incision

It is very uncertain whether transverse groin incision changes lymphatic complications: Lymphatic leak (28 days) Lymphatic… compared with vertical groin incision (very low certainty).

• Transverse versus vertical groin incision for femoral artery approach 2020 · Cochrane Headline outcomes only
  RR 0.46 [0.2, 1.02]
  116 participants
  Very low

Transverse groin incision vs vertical groin incision

The review found no eligible studies for this question.

• Transverse versus vertical groin incision for femoral artery approach 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Transverse groin incision vs vertical groin incision

The review found no eligible studies for this question.

• Transverse versus vertical groin incision for femoral artery approach 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Transverse groin incision vs vertical groin incision

The review found no eligible studies for this question.

• Transverse versus vertical groin incision for femoral artery approach 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Transverse groin incision vs vertical groin incision

The review found no eligible studies for this question.

• Transverse versus vertical groin incision for femoral artery approach 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Any method, procedure or policy to reduce contaminated aerosols in dental clinics vs Any other method, no treatment or combination of methods

The review found no eligible studies for this question.

• Interventions to reduce contaminated aerosols produced during dental procedures for preventing infectious diseases 2020 · Cochrane All outcomes
  Reduction in volume of contaminated aerosols in the operative environment: Not reported (row present in all Summary of findings tables)
  0 studies
  No studies found

Ionisation (ionic air purifier) vs No ionisation / standard operatory

The review found no eligible studies for this question.

• Interventions to reduce contaminated aerosols produced during dental procedures for preventing infectious diseases 2020 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Any method, procedure or policy to reduce contaminated aerosols in dental clinics vs Any other method, no treatment or combination of methods

The review found no eligible studies for this question.

• Interventions to reduce contaminated aerosols produced during dental procedures for preventing infectious diseases 2020 · Cochrane All outcomes
  Rate of infection of dental staff or patients: Not reported (row present in all Summary of findings tables)
  0 studies
  No studies found

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Risk of transient neurological symptoms with spinal lidocaine probably leads to lower presence of any TNS –lidocaine vs bupivacaine compared with other local anaesthetic (moderate certainty).

• Transient neurological symptoms (TNS) following spinal anaesthesia with lidocaine versus other local anaesthetics in… 2019 · Cochrane Headline outcomes only
  RR 0.16 [0.09, 0.28]
  12 studies · 1220 participants
  Moderate

Risk of transient neurological symptoms with spinal lidocaine vs other local anaesthetic

Risk of transient neurological symptoms with spinal lidocaine showed no clear difference in presence of any TNS – lidocaine vs 2‐chloroprocaine compared with other local anaesthetic (low certainty).

• Transient neurological symptoms (TNS) following spinal anaesthesia with lidocaine versus other local anaesthetics in… 2019 · Cochrane Headline outcomes only
  RR 0.09 [0.01, 1.51]
  2 studies · 94 participants
  Low