What do systematic reviews say?

Double vs single‐injection technique

Double showed no clear difference in intravascular injection compared with single‐injection technique (low certainty).

• Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in adults… 2016 · Cochrane Headline outcomes only
  RR 4.15 [0.46, 37.13]
  2 studies · 90 participants
  Low

Double vs single‐injection technique

• Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in adults… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 119 participants
  Low

Multiple vs single‐injection technique

Multiple leads to lower primary anaesthesia failure compared with single‐injection technique (high certainty).

• Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in adults… 2016 · Cochrane Headline outcomes only
  RR 0.25 [0.14, 0.42]
  9 studies · 712 participants
  High

Multiple vs single‐injection technique

Multiple showed no clear difference in secondary analgesia failure ‐ intraoperative sedation required compared with single‐injection technique (high certainty).

• Single, double or multiple‐injection techniques for non‐ultrasound guided axillary brachial plexus block in adults… 2016 · Cochrane Headline outcomes only
  RR 0.7 [0.41, 1.19]
  5 studies · 482 participants
  High

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  8 studies · 590 participants
  Low

Intervention not reported

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 698 participants
  Low

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 760 participants
  Low

Intervention not reported

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 785 participants
  Low

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Insulin monotherapy compared with the addition of oral glucose‐lowering agents to insulin for people with type 2… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found