What do systematic reviews say?

1,438 questions · 1,463 findings · 125 reviews · Anaesthesia

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No studies found 197 · 13.5%GRADE not reported 203 · 13.9%Very low 307 · 21%Low 441 · 30.1%Moderate 245 · 16.7%High 70 · 4.8%

Automated mandatory bolus vs basal infusion

Instrumental delivery during labour epidural analgesia · term, pregnant women (nulliparous, or combination of nulli‐ and muliparous) requesting for labour epidural analgesia

Automated mandatory bolus showed no clear difference in instrumental delivery during labour epidural analgesia compared with basal infusion (moderate certainty).

1 finding from 1 review

Automated mandatory bolus versus basal infusion for maintenance of epidural analgesia in labour 2023 · Cochrane Headline outcomes only
RR 0.85 [0.71, 1.01]
17 studies · 4550 participants
Moderate

Automated mandatory bolus vs basal infusion

Duration of labour analgesia in minutes · term, pregnant women (nulliparous, or combination of nulli‐ and muliparous) requesting for labour epidural analgesia

1 finding from 1 review

Automated mandatory bolus versus basal infusion for maintenance of epidural analgesia in labour 2023 · Cochrane Headline outcomes only
no estimate extracted
17 studies · 4544 participants
Moderate

Automated mandatory bolus vs basal infusion

Local anaesthetic consumption per hour (mg/hr)c during labour epidural analgesia · term, pregnant women (nulliparous, or combination of nulli‐ and muliparous) requesting for labour epidural analgesia

1 finding from 1 review

Automated mandatory bolus versus basal infusion for maintenance of epidural analgesia in labour 2023 · Cochrane Headline outcomes only
no estimate extracted
16 studies · 1642 participants
Moderate

Automated mandatory bolus vs basal infusion

Maternal satisfaction following fetal delivery · term, pregnant women (nulliparous, or combination of nulli‐ and muliparous) requesting for labour epidural analgesia

1 finding from 1 review

Automated mandatory bolus versus basal infusion for maintenance of epidural analgesia in labour 2023 · Cochrane Headline outcomes only
no estimate extracted
14 studies · 14 participants
GRADE not reported

Automated mandatory bolus vs basal infusion

APGAR score (APGAR score ) · term, pregnant women (nulliparous, or combination of nulli‐ and muliparous) requesting for labour epidural analgesia

1 finding from 1 review

Automated mandatory bolus versus basal infusion for maintenance of epidural analgesia in labour 2023 · Cochrane Headline outcomes only
no estimate extracted
14 studies · 14 participants
GRADE not reported

Macintosh‐style videolaryngoscopy vs direct laryngoscopy

Failed intubation · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy probably leads to lower failed intubation compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.41 [0.26, 0.65]
41 studies · 4615 participants
Moderate

Hyperangulated videolaryngoscopy vs direct laryngoscopy

First‐attempt success rate · adults undergoing tracheal intubation

Hyperangulated videolaryngoscopy showed no clear difference in successful first attempt compared with direct laryngoscopy (low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 1.03 [1, 1.05]
66 studies · 8086 participants
Low

Hyperangulated videolaryngoscopy vs direct laryngoscopy

Oesophageal intubation · adults undergoing tracheal intubation

Hyperangulated videolaryngoscopy probably leads to lower oesophageal intubation compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.39 [0.18, 0.81]
14 studies · 1968 participants
Moderate

Hyperangulated videolaryngoscopy vs direct laryngoscopy

Dental trauma · adults undergoing tracheal intubation

It is very uncertain whether hyperangulated videolaryngoscopy changes dental trauma compared with direct laryngoscopy (very low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.51 [0.16, 1.59]
30 studies · 3497 participants
Very low

Hyperangulated videolaryngoscopy vs direct laryngoscopy

Cormack‐Lehane grade · adults undergoing tracheal intubation

Hyperangulated videolaryngoscopy probably leads to lower cormack‐Lehane grade compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.15 [0.1, 0.24]
54 studies · 6058 participants
Moderate

Hyperangulated videolaryngoscopy vs direct laryngoscopy

Duration of tracheal intubation · adults undergoing tracheal intubation

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
no estimate extracted
59 studies · 6644 participants
Very low

Channelled videolaryngoscopy vs direct laryngoscopy

Failed intubation · adults undergoing tracheal intubation

Channelled videolaryngoscopy probably leads to lower failed intubation compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.43 [0.3, 0.61]
53 studies · 5367 participants
Moderate

Channelled videolaryngoscopy vs direct laryngoscopy

Hypoxia · adults undergoing tracheal intubation

Channelled videolaryngoscopy probably leads to lower hypoxia compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.25 [0.12, 0.5]
15 studies · 1966 participants
Moderate

Channelled videolaryngoscopy vs direct laryngoscopy

First‐attempt success rate · adults undergoing tracheal intubation

It is very uncertain whether channelled videolaryngoscopy changes successful first attempt compared with direct laryngoscopy (very low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 1.1 [1.05, 1.15]
47 studies · 5210 participants
Very low

Channelled videolaryngoscopy vs direct laryngoscopy

Oesophageal intubation · adults undergoing tracheal intubation

Channelled videolaryngoscopy showed no clear difference in oesophageal intubation compared with direct laryngoscopy (low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.54 [0.17, 1.75]
16 studies · 1756 participants
Low

Channelled videolaryngoscopy vs direct laryngoscopy

Dental trauma · adults undergoing tracheal intubation

It is very uncertain whether channelled videolaryngoscopy changes dental trauma compared with direct laryngoscopy (very low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.52 [0.13, 2.12]
29 studies · 2375 participants
Very low

Macintosh‐style videolaryngoscopy vs direct laryngoscopy

Hypoxaemia · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy probably leads to lower hypoxaemia compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.72 [0.52, 0.99]
16 studies · 2127 participants
Moderate

Channelled videolaryngoscopy vs direct laryngoscopy

Cormack‐Lehane grade · adults undergoing tracheal intubation

Channelled videolaryngoscopy probably leads to lower cormack‐Lehane grade compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.14 [0.09, 0.21]
40 studies · 3955 participants
Moderate

Channelled videolaryngoscopy vs direct laryngoscopy

Duration of tracheal intubation · adults undergoing tracheal intubation

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
no estimate extracted
57 studies · 5676 participants
Very low

Macintosh‐style videolaryngoscopy vs direct laryngoscopy

First‐attempt success rate · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy may leads to higher successful first attempt compared with direct laryngoscopy (low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 1.05 [1.02, 1.09]
42 studies · 7311 participants
Low