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. 2010 Dec 1;10(27):1–118.
Robotics Compared to Laparoscopy: Gynecologic Oncology
Outcomes Illustrative comparative risks* (95% CI) Relative effect (95% CI) No of Participants (studies) Quality of the evidence (GRADE) Comments
Assumed risk Corresponding risk
Laparoscopy Robotic
Length of Hospitalization The mean length of hospitalization in the intervention groups was 0.2 lower (0.31 to 0.1 lower) 636 (5 studies) □□⊖⊖
low1
RB > LP
Complications Study population OR 0.76 (0.52 to 1.09) 970 (10 studies) □□⊖⊖
low1,2
n/a
163 per 1000 129 per 1000 (92 to 175)
Medium risk population
206 per 1000 165 per 1000 (119 to 220)
Operation Time The mean operation time in the intervention groups was 0.03 higher (0.47 lower to 0.53 higher) 870 (7 studies) □⊖⊖⊖
very low1,3
n/a
Blood Loss The mean blood loss in the intervention groups was 74.95 lower (94.77 to 55.14 lower) 636 (5 studies) □□⊖⊖
low1
RB > LP
Conversions Study population OR 0.38 (0.2 to 0.72) 640 (3 studies) □□⊖⊖
low1
RB > LP
100 per 1000 41 per 1000 (22 to 74)
Medium risk population
52 per 1000 20 per 1000 (11 to 38)
Lymph Nodes The mean lymph nodes in the intervention groups was 3.16 lower (6.99 lower to 0.67 higher) 870 (7 studies) □□⊖⊖
low4
n/a
*

The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).

**

RB > LP indicates that robotics had a more favourable profile for the specific outcome; RB < LP indicates robotics had a less favourable profile for the specific outcome.

CI: Confidence interval; OR: Odds ratio; RB: Robotics; LP: Laparoscopy.

GRADE Working Group grades of evidence

High quality: Further research is very unlikely to change our confidence in the estimate of effect.

Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.

Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.

Very low quality: We are very uncertain about the estimate.

1

Level of surgeon skill differed across studies.

2

Complications were reported differently across studies.

3

Inconsistency not explained by level of surgeon skill or patient characteristics

4

Extensive laparoscopic experience may have facilitated the uptake of robotic surgery.