What do systematic reviews say?

Direct vision entry vs Veress needle entry

It is very uncertain whether direct vision entry changes vascular injury (major vessels and abdominal wall vessels) compared with veress needle entry (very low certainty).

• Laparoscopic entry techniques 2019 · Cochrane Headline outcomes only
  Peto OR 0.39 [0.05, 2.85]
  1 study · 186 participants
  Very low

Open‐entry vs closed entry technique

It is very uncertain whether open‐entry changes vascular injury (major vessels and abdominal wall vessels) compared with closed‐entry technique (very low certainty).

• Laparoscopic entry techniques 2019 · Cochrane Headline outcomes only
  Peto OR 0.14 [0, 6.82]
  4 studies · 915 participants
  Very low

Direct vision entry vs open‐entry technique

• Laparoscopic entry techniques 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 392 participants
  GRADE not reported

Radially expanding (STEP) trocars for primary port entry vs standard (non‐expanding) trocars

It is very uncertain whether radially expanding (STEP) trocars for primary port entry changes vascular injury (major vessels and abdominal wall vessels) compared with standard (non‐expanding) trocars (very low certainty).

• Laparoscopic entry techniques 2019 · Cochrane Headline outcomes only
  Peto OR 0.24 [0.05, 1.21]
  2 studies · 331 participants
  Very low