Cochrane · systematic review · CD009814

Trocar types in laparoscopy

la Chapelle, CF, Swank, HA, Wessels, ME, et al. · Cochrane Database of Systematic Reviews · 2015 · Cochrane Library

Gynaecology and FertilityAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
16
current version
GRADE rated
15
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 1 · 6.3%Very low 15 · 93.8%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Radially expanding trocars compared to cutting trocars for laparoscopy

Population: people undergoing laparoscopy
6 questions
OutcomeEffectEvidenceStatus / GRADE
Visceral injury
Radially expanding trocars vs cutting trocars
OR 0.95 [0.06, 15.32]4 studies · 473 participantsVery low
Downgraded: risk of bias, imprecision
Vascular injury
Radially expanding trocars vs cutting trocars
OR 0.14 [0, 7.16]4 studies · 473 participantsVery low
Downgraded: risk of bias, imprecision
Trocar site herniation
Radially expanding trocars vs cutting trocars
no estimate extracted4 studies · 463 participantsVery low
Downgraded: risk of bias, imprecision
Trocar site bleeding
Radially expanding trocars vs cutting trocars
OR 0.28 [0.14, 0.54]5 studies · 553 participantsVery low
Downgraded: risk of bias, imprecision
Trocar site haematoma5
Radially expanding trocars vs cutting trocars
no estimate extracted2 studies · 238 participantsVery low
Downgraded: risk of bias, imprecision
Postoperative pain6
Radially expanding trocars vs cutting trocars
no estimate extracted4 studies · 306 participantsUngraded

Conical blunt‐tipped trocar compared to cutting trocar for laparoscopy

Population: people undergoing laparoscopy
4 questions
OutcomeEffectEvidenceStatus / GRADE
Visceral injury
Conical blunt‐tipped trocar vs cutting trocar
no estimate extracted1 study · 42 participantsVery low
Downgraded: risk of bias, imprecision
Vascular injury
Conical blunt‐tipped trocar vs cutting trocar
no estimate extracted1 study · 42 participantsVery low
Downgraded: risk of bias, imprecision
Trocar site bleeding
Conical blunt‐tipped trocar vs cutting trocar
OR 0.13 [0.01, 2.12]1 study · 30 participantsVery low
Downgraded: risk of bias, imprecision
Postoperative pain5
Conical blunt‐tipped trocar vs cutting trocar
no estimate extracted1 study · 42 participantsVery low
Downgraded: risk of bias, imprecision

Radially expanding trocar compared to conical blunt‐tipped trocar for laparoscopy

Population: people undergoing laparoscopy
3 questions
OutcomeEffectEvidenceStatus / GRADE
Visceral injury
Radially expanding trocar vs conical blunt‐tipped trocar
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision
Vascular injury
Radially expanding trocar vs conical blunt‐tipped trocar
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision
Trocar site herniation
Radially expanding trocar vs conical blunt‐tipped trocar
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision

Single‐bladed trocar compared to pyramidal‐bladed trocar for laparoscopy

Population: people undergoing laparoscopy
3 questions
OutcomeEffectEvidenceStatus / GRADE
Visceral injury
Single‐bladed trocar vs pyramidal‐bladed trocar
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision
Vascular injury
Single‐bladed trocar vs pyramidal‐bladed trocar
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision
Trocar site herniation
Single‐bladed trocar vs pyramidal‐bladed trocar
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision