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Meta-Analysis
. 2020 Oct 23;10(10):CD011031.
doi: 10.1002/14651858.CD011031.pub3.

Laparoscopic surgery for endometriosis

Celine Bafort  1 , Yusuf Beebeejaun  2 , Carla Tomassetti  1 , Jan Bosteels  3 , James Mn Duffy  4   5
Affiliations
Meta-Analysis

Laparoscopic surgery for endometriosis

Celine Bafort et al. Cochrane Database Syst Rev. .

Abstract

Background: Endometriosis is associated with pain and infertility. Surgical interventions aim to remove visible areas of endometriosis and restore the anatomy.

Objectives: To assess the effectiveness and safety of laparoscopic surgery in the treatment of pain and infertility associated with endometriosis.

Search methods: This review has drawn on the search strategy developed by the Cochrane Gynaecology and Fertility Group including searching the Cochrane Gynaecology and Fertility Group's specialised register, CENTRAL, MEDLINE, Embase, PsycINFO, CINAHL, reference lists for relevant trials, and trial registries from inception to April 2020.

Selection criteria: We selected randomised controlled trials (RCTs) that compared the effectiveness and safety of laparoscopic surgery with any other laparoscopic or robotic intervention, holistic or medical treatment, or diagnostic laparoscopy only.

Data collection and analysis: Two review authors independently performed selection of studies, assessment of trial quality and extraction of relevant data with disagreements resolved by a third review author. We collected data for the core outcome set for endometriosis. Primary outcomes included overall pain and live birth. We evaluated the quality of evidence using GRADE methods.

Main results: We included 14 RCTs. The studies randomised 1563 women with endometriosis. Four RCTs compared laparoscopic ablation or excision with diagnostic laparoscopy only. Two RCTs compared laparoscopic excision with diagnostic laparoscopy only. One RCT compared laparoscopic ablation or excision with laparoscopic ablation or excision and uterine suspension. Two RCTs compared laparoscopic ablation and uterine nerve transection with diagnostic laparoscopy only. One RCT compared laparoscopic ablation with diagnostic laparoscopy and gonadotropin-releasing hormone (GnRH) analogues. Two RCTs compared laparoscopic ablation with laparoscopic excision. One RCT compared laparoscopic ablation or excision with helium thermal coagulator with laparoscopic ablation or excision with electrodiathermy. One RCT compared conservative laparoscopic surgery with laparoscopic colorectal resection of deep endometriosis infiltrating the rectum. Common limitations in the primary studies included lack of clearly described blinding, failure to fully describe methods of randomisation and allocation concealment, and poor reporting of outcome data. Laparoscopic treatment versus diagnostic laparoscopy We are uncertain of the effect of laparoscopic treatment on overall pain scores compared to diagnostic laparoscopy only at six months (mean difference (MD) 0.90, 95% confidence interval (CI) 0.31 to 1.49; 1 RCT, 16 participants; very low quality evidence) and at 12 months (MD 1.65, 95% CI 1.11 to 2.19; 1 RCT, 16 participants; very low quality evidence), where a positive value means pain relief (the higher the score, the more pain relief) and a negative value reflects pain increase (the lower the score, the worse the increase in pain). No studies looked at live birth. We are uncertain of the effect of laparoscopic treatment on quality of life compared to diagnostic laparoscopy only: EuroQol-5D index summary at six months (MD 0.03, 95% CI -0.12 to 0.18; 1 RCT, 39 participants; low quality evidence), 12-item Short Form (SF-12) mental health component (MD 2.30, 95% CI -4.50 to 9.10; 1 RCT, 39 participants; low quality evidence) and SF-12 physical health component (MD 2.70, 95% CI -2.90 to 8.30; 1 RCT, 39 participants; low quality evidence). Laparoscopic treatment probably improves viable intrauterine pregnancy rate compared to diagnostic laparoscopy only (odds ratio (OR) 1.89, 95% CI 1.25 to 2.86; 3 RCTs, 528 participants; I2 = 0%; moderate quality evidence). We are uncertain of the effect of laparoscopic treatment compared to diagnostic laparoscopy only on ectopic pregnancy (MD 1.18, 95% CI 0.10 to 13.48; 1 RCT, 100 participants; low quality evidence) and miscarriage (MD 0.94, 95% CI 0.35 to 2.54; 2 RCTs, 112 participants; low quality evidence). There was limited reporting of adverse events. No conversions to laparotomy were reported in both groups (1 RCT, 341 participants). Laparoscopic ablation and uterine nerve transection versus diagnostic laparoscopy We are uncertain of the effect of laparoscopic ablation and uterine nerve transection on adverse events (more specifically vascular injury) compared to diagnostic laparoscopy only (OR 0.33, 95% CI 0.01 to 8.32; 1 RCT, 141 participants; low quality evidence). No studies looked at overall pain scores (at six and 12 months), live birth, quality of life, viable intrauterine pregnancy confirmed by ultrasound, ectopic pregnancy and miscarriage. Laparoscopic ablation versus laparoscopic excision There was insufficient evidence to determine whether there was a difference in overall pain, measured at 12 months, for laparoscopic ablation compared with laparoscopic excision (MD 0.00, 95% CI -1.22 to 1.22; 1 RCT, 103 participants; very low quality evidence). No studies looked at overall pain scores at six months, live birth, quality of life, viable intrauterine pregnancy confirmed by ultrasound, ectopic pregnancy, miscarriage and adverse events. Helium thermal coagulator versus electrodiathermy We are uncertain whether helium thermal coagulator compared to electrodiathermy improves quality of life using the 30-item Endometriosis Health Profile (EHP-30) at nine months, when considering the components: pain (MD 6.68, 95% CI -3.07 to 16.43; 1 RCT, 119 participants; very low quality evidence), control and powerlessness (MD 4.79, 95% CI -6.92 to 16.50; 1 RCT, 119 participants; very low quality evidence), emotional well-being (MD 6.17, 95% CI -3.95 to 16.29; 1 RCT, 119 participants; very low quality evidence) and social support (MD 5.62, 95% CI -6.21 to 17.45; 1 RCT, 119 participants; very low quality evidence). Adverse events were not estimable. No studies looked at overall pain scores (at six and 12 months), live birth, viable intrauterine pregnancy confirmed by ultrasound, ectopic pregnancy and miscarriage.

Authors' conclusions: Compared to diagnostic laparoscopy only, it is uncertain whether laparoscopic surgery reduces overall pain associated with minimal to severe endometriosis. No data were reported on live birth. There is moderate quality evidence that laparoscopic surgery increases viable intrauterine pregnancy rates confirmed by ultrasound compared to diagnostic laparoscopy only. No studies were found that looked at live birth for any of the comparisons. Further research is needed considering the management of different subtypes of endometriosis and comparing laparoscopic interventions with lifestyle and medical interventions. There was insufficient evidence on adverse events to allow any conclusions to be drawn regarding safety.

Trial registration: ClinicalTrials.gov NCT03633786.

PubMed Disclaimer

Conflict of interest statement

CB: none.

YB: none.

CT: does not report a conflict of interest for the current work considered for publication. She discloses the following non‐related but possibly relevant financial activities outside the submitted work (payments to institution, no personal revenue): consultancy (Merck SA, Gedeon Richter, Nordic Pharma), grants for a research fellowship (Merck SA) and travel/accommodations/meeting expenses (Ferring Pharmaceuticals, Gedeon Richter, MSD).

JB: none.

JMD: none.

Figures

1
1
Study flow diagram.
2
2
Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
3
3
Risk of bias summary: review authors' judgements about each risk of bias item for each included study.
4
4
Forest plot of comparison: 1 Laparoscopic treatment versus diagnostic laparoscopy, outcome: 1.2 Overall pain scores unclear measurement instrument (12 months).
5
5
Forest plot of comparison: 1 Laparoscopic treatment versus diagnostic laparoscopy, outcome: 1.6 Viable intrauterine pregnancy confirmed by ultrasound.
6
6
Forest plot of comparison: 3 Laparoscopic ablation versus laparoscopic excision, outcome: 3.1 Overall pain scores (reduction in visual analogue scale score at 12 months).
1.1
1.1. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 1: Overall pain scores unclear measurement instrument (6 months)
1.2
1.2. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 2: Overall pain scores unclear measurement instrument (12 months)
1.3
1.3. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 3: Quality of life EQ‐5D index summary (6 months)
1.4
1.4. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 4: Quality of life SF‐12 mental health component (6 months)
1.5
1.5. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 5: Quality of life SF‐12 physical health component (6 months)
1.6
1.6. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 6: Viable intrauterine pregnancy confirmed by ultrasound
1.7
1.7. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 7: Ectopic pregnancy per pregnancy
1.8
1.8. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 8: Miscarriage per pregnancy
1.9
1.9. Analysis
Comparison 1: Laparoscopic treatment versus diagnostic laparoscopy, Outcome 9: Adverse events
2.1
2.1. Analysis
Comparison 2: Laparoscopic ablation and uterine nerve transection versus diagnostic laparoscopy, Outcome 1: Adverse events
3.1
3.1. Analysis
Comparison 3: Laparoscopic ablation versus laparoscopic excision, Outcome 1: Overall pain scores (reduction in VAS at 12 months)
4.1
4.1. Analysis
Comparison 4: Helium thermal coagulator versus electrodiathermy, Outcome 1: Quality of life (9 months)
4.2
4.2. Analysis
Comparison 4: Helium thermal coagulator versus electrodiathermy, Outcome 2: Adverse events
See this image and copyright information in PMC

Update of

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