What do systematic reviews say?

Ultrasound guidance vs no ultrasound

Ultrasound guidance showed no clear difference in failed blocks compared with no ultrasound guidance (moderate certainty).

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  22 studies · 1789 participants
  Moderate

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  15 studies · 982 participants
  Moderate

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  10 studies · 460 participants
  High

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 680 participants
  Moderate

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 256 participants
  Very low

Ultrasound guidance vs no ultrasound

Ultrasound guidance showed no clear difference in minor complications compared with no ultrasound guidance (low certainty).

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  13 studies · 896 participants
  Low

Ultrasound guidance vs no ultrasound

Ultrasound guidance showed no clear difference in major complications compared with no ultrasound guidance (moderate certainty).

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  RD 0
  22 studies · 1576 participants
  Moderate

Intervention not reported

The intervention probably leads to higher block success (predicted adequacy of block) (moderate certainty).

• Ultrasound guidance for upper and lower limb blocks 2015 · Cochrane Headline outcomes only
  OR 2.49 [2.14, 4.04]
  17 studies · 1346 participants
  Moderate

Intervention not reported

The intervention probably leads to lower block success (supplementation or conversion to general anaesthesia (moderate certainty).

• Ultrasound guidance for upper and lower limb blocks 2015 · Cochrane Headline outcomes only
  OR 0.28 [0.2, 0.39]
  18 studies · 1807 participants
  Moderate

Intervention not reported

It is very uncertain whether the intervention changes paraesthesia (very low certainty).

• Ultrasound guidance for upper and lower limb blocks 2015 · Cochrane Headline outcomes only
  OR 0.42 [0.23, 0.76]
  6 studies · 471 participants
  Very low

Intervention not reported

The intervention may leads to lower vascular puncture (low certainty).

• Ultrasound guidance for upper and lower limb blocks 2015 · Cochrane Headline outcomes only
  OR 0.19 [0.07, 0.57]
  5 studies · 387 participants
  Low

Intervention not reported

• Ultrasound guidance for upper and lower limb blocks 2015 · Cochrane Headline outcomes only
  no estimate extracted
  10 studies · 690 participants
  Very low

Intervention not reported

• Ultrasound guidance for upper and lower limb blocks 2015 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 7 participants
  Low

Intervention not reported

• Ultrasound guidance for upper and lower limb blocks 2015 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 7 participants
  Low