Cited by 15Endometriosis Research and TreatmentGynecological conditions and treatmentsMinimally Invasive Surgical Techniques

Robotic-assisted laparoscopy is a feasible method for resection of deep infiltrating endometriosis, especially in the rectosigmoid area

Open access
Hiltunen, Janika, Eloranta, Marja-Liisa, Lindgren, Auni, Keski-Nisula, Leea, Anttila, Maarit, Sallinen, Hanna·2021·Journal of International Medical Research

Abstract

Objective: This study aimed to compare outcomes of mini-invasive surgical treatment of endometriosis, especially conventional laparoscopy with robotic-assisted laparoscopy, and to evaluate the quality of life. Methods: One hundred three consecutive patients with endometriosis who had surgery from 2014 to 2017 owing to an indication of pain were enrolled in this retrospective study. The majority (n = 77, 75%) of patients underwent conventional laparoscopy and 18 (17%) had robotic-assisted laparoscopy. The quality of life was postoperatively assessed with a questionnaire. Results: The rates of parametrectomy (76% vs. 45%,) and rectovaginal resection (28% vs. 4%) were significantly higher in robotic-assisted laparoscopy than in laparoscopy. Additionally, the rate of bowel operations (50% vs. 17%), especially the shaving technique, was higher in robotic-assisted laparoscopy surgery than in laparoscopy (39% vs. 8%). There was no difference in the rate of postoperative complications between laparoscopy and robotic-assisted laparoscopy. Most (91%) of the patients who answered the questionnaire felt that surgical treatment had relieved their pain. In the laparoscopic and robotic-assisted groups, 88% of respondents felt that their quality of life had improved after surgery. Conclusions: This study suggests that robotic-assisted laparoscopy is a feasible method to resect deep infiltrating endometriosis, especially in the rectosigmoid area.

AI snapshot

Written from the paper’s full text.

TL;DR

In a retrospective single-center series of 103 patients with painful endometriosis, robotic-assisted laparoscopy was used for more extensive resection of deep infiltrating endometriosis than conventional laparoscopy, especially in the rectosigmoid area. Postoperative complications did not differ between approaches, and most questionnaire respondents reported pain relief and improved quality of life.

Key findings

  • Robotic-assisted laparoscopy had significantly higher rates than conventional laparoscopy of parametrectomy (76% vs 45%, p = 0.036), rectovaginal resection (28% vs 4%, p = 0.001), bowel operations (50% vs 17%, p = 0.011), and shaving (39% vs 8%, p = 0.011).
  • There was no significant difference in postoperative complications between conventional laparoscopy and robotic-assisted laparoscopy; the most common complications were urinary and genital infections, prolonged pain, and short-term dysuria.
  • Among questionnaire respondents, 91% felt surgical treatment had relieved their pain, and 88% in both the laparoscopic and robotic-assisted groups felt their quality of life had improved after surgery.
  • Mean NRS pain scores after surgery were 1.9 ± 1.2 at 1 year, 1.0 ± 0.8 at 2 years, 3.1 ± 1.0 at 3 years, 1.7 ± 1 at 4 years, and 3.6 ± 0.8 at 5 years, with no significant changes between time points or between laparoscopic and robotic-assisted surgery.

Methods

  • Retrospective study of 103 consecutive patients operated for endometriosis-related pain between January 2014 and December 2017 at Kuopio University Hospital; 76/77 underwent conventional laparoscopy and 18 underwent robotic-assisted laparoscopy.
  • Data were collected from medical files, including symptoms, biomarkers, MRI, operative details, and Clavien–Dindo complications; a non-validated well-being questionnaire was sent in January 2019, with 45 patients (44%) responding.
  • Statistical analysis used IBM SPSS version 27, with Kruskal–Wallis and Mann–Whitney tests for continuous variables, chi-square tests for frequency tables, and p < 0.05 considered significant.

Limitations

  • The paper states that the study was retrospective with a limited number of patients, that more complex cases were routinely operated on using robotic-assisted techniques after 2016 and thus had shorter follow-up, that the questionnaire was not validated, that there was no preoperative quality-of-life information, and that pain was the only symptom evaluated.
  • Evident from the text: the robotic-assisted group was small (n = 18), the questionnaire response rate was only 44%, and treatment allocation was not randomized, so selection bias likely affects comparisons between surgical approaches.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1177/03000605211032788

Cites

33 of 33 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 2 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    The shaving technique was applied significantly more frequently in robotic-assisted laparoscopy than in conventional laparoscopy (39% vs 8%, p = 0.011).

    “Additionally, the rate of bowel operations (50% vs. 17%), especially the shaving technique, was higher in robotic-assisted laparoscopy surgery than in laparoscopy (39% vs. 8%).”
    • Also stated in: § Surgical techniques · plain
      “In particular, the shaving technique was applied more frequently in robotic-assisted laparoscopy than in conventional laparoscopy (p = 0.011) (Figure 1).”
    • Also stated in: § Surgical techniques · plain
      “Shaving | 6 (8) | 7 (39) | 0.011”
    Quote in the paperNot a substantial claim
  • Findingown data

    The rate of bowel operations was significantly higher in robotic-assisted laparoscopy than in conventional laparoscopy (50% vs 17%, p = 0.011).

    “Additionally, the rate of bowel operations (50% vs. 17%), especially the shaving technique, was higher in robotic-assisted laparoscopy surgery than in laparoscopy (39% vs. 8%).”
    • Also stated in: § Surgical techniques · plain
      “Additionally, significantly more bowel operations were performed in robotic-assisted laparoscopy than in conventional laparoscopy (p = 0.011).”
    • Also stated in: § Surgical techniques · plain
      “Bowel operations | 13 (17) | 9 (50) | 0.011”
    Quote in the paperNot a substantial claim
  • Findingown data

    The rate of parametrectomy was significantly higher in robotic-assisted laparoscopy than in conventional laparoscopy (76% vs 45%, p = 0.036).

    “The rates of parametrectomy (76% vs. 45%,) and rectovaginal resection (28% vs. 4%) were significantly higher in robotic-assisted laparoscopy than in laparoscopy.”
    • Also stated in: § Surgical techniques · plain
      “significantly higher rates of parametrectomy (p = 0.036) and rectovaginal resections (p = 0.001) were performed in robotic-assisted laparoscopy than in conventional laparoscopy.”
    • Also stated in: § Surgical techniques · plain
      “Parametrectomy (e.g., sacral ligament) | 34 (45) | 13 (76) | 0.036”
    Quote in the paperNot a substantial claim
  • Findingown data

    No conversions to laparotomy were undertaken in the study.

    “No conversions to laparotomy were undertaken.”
    • Also stated in: § Discussion · plain
      “In the current study, no conversions to laparotomy were performed, which suggested the feasibility of using robotics.”
    Quote in the paperSubstantial claim
  • Findingown data

    Most (91%) of the questionnaire respondents felt that surgical treatment had relieved their pain.

    “Most (91%) of the patients who answered the questionnaire felt that surgical treatment had relieved their pain.”
    • Also stated in: § Postoperative questionnaire of well-being · plain
      “Most (91%) of the respondents felt that surgical treatment had relieved their pain and 90% of the respondents thought that the operation had been beneficial.”
    Quote in the paperNot a substantial claim
  • May combine two claims. 6
  • Classified as probably not a substantial claim. 9
  • May combine two claims.

    Findingown data

    There were no significant changes in NRS values between time points or between laparoscopic or robotic-assisted surgery.

    “There were no significant changes in NRS values between time points or between laparoscopic or robotic-assisted surgery.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Two-thirds (62%) of respondents who had laparoscopy and one-third of respondents who had robotic-assisted laparoscopy reported still experiencing endometriosis-related pain less or more often than monthly.

    “Two-thirds (62%) of the respondents who had laparoscopy and one-third of respondents who had robotic-assisted laparoscopy reported that they were still experiencing pain due to endometriosis less or more often than monthly.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductcitation

    The stage of endometriosis was classified in accordance with the revised American Society for Reproductive Medicine classification.

    “The stage of endometriosis was classified in accordance with revised American Society for Reproductive Medicine classification.18”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [18] Haas D Shebl O Shamiyeh A, et al. The rASRM score and the Enzian classification for endometriosis: their strengths and weaknesses. Acta Obstet Gynecol Scand 2013; 92: 3– 7. 23061819 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    The study had no information on quality of life before surgery.

    “Third, we had no information on the quality of life before the patients had surgery.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductreasoning

    There might have been bias because more complex cases were routinely operated on using robotic-assisted techniques after 2016, and these patients had shorter follow-up.

    “There might have been some bias because the more complex cases were routinely operated on using robotic-assisted techniques after 2016. These patients had a shorter follow-up time than patients who were operated on before this time.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    The questionnaire of well-being has not been validated.

    “Second, our questionnaire of well-being has not been validated.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductown data

    The study was retrospective and the number of patients was limited.

    “First, our study was retrospective and the number of patients was limited.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Study design and conductnone given

    The Research Ethical Committee of Northern Savo approved the study protocol and written informed consent was obtained from all patients.

    “The Research Ethical Committee of Northern Savo approved the study protocol (1012/13.02.00/2018) and written informed consent was obtained from all patients.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    The numeric rating scale (NRS) from 0 to 10 was used to assess pain.

    “The numeric rating scale (NRS) from 0 to 10 was used, where 0 indicates no pain and 10 the worst possible pain.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    Pain was the only symptom evaluated.

    “Furthermore, pain was the only symptom that we evaluated.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductcitation

    The Clavien-Dindo classification was used for postoperative complications.

    “Clavien–Dindo classification,19”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [19] Clavien PA Barkun J De Oliveira ML, et al. The Clavien-Dindo classification of surgical complications: five-year experience. Ann Surg 2009; 250: 187– 196. 19638912 source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Study design and conductnone given

    Endometriosis was diagnosed by laparoscopy or histologically in all patients.

    “Endometriosis was diagnosed by laparoscopy or histologically in all patients.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    Almost half (44%, n = 45) of the patients returned the well-being questionnaire.

    “Almost half (44%, n = 45) of the patients returned the well-being questionnaire, which was sent to them after the operation.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductnone given

    The first 2 years of follow-up included patients who had undergone either robotic-assisted or laparoscopic surgery, but later evaluation included only conventional laparoscopic operations.

    “Notably, in this study, the first 2 years of follow-up included patients who had undergone either robotic-assisted or laparoscopic surgery, but the later evaluation included only those who had been treated with conventional laparoscopic operations.”
    Quote in the paperNot a substantial claim
14 of 14
  • The paper relies on this without support.

    The well-being questionnaire accurately measures postoperative pain relief and quality of life.

    “The quality of life was postoperatively assessed with a questionnaire.”
    “Second, our questionnaire of well-being has not been validated.”
  • The paper relies on this without support.

    The patients who returned the questionnaire are representative of the entire surgical cohort with respect to pain relief and quality of life.

    “Almost half (44%, n = 45) of the patients returned the well-being questionnaire, which was sent to them after the operation.”
    “Most (91%) of the respondents felt that surgical treatment had relieved their pain and 90% of the respondents thought that the operation had been beneficial.”
2 of 2

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Robotic unilateral adnexectomy percentage is incorrect

    Minor

    One patient among the 18 in the robotic group represents approximately 6%, not 1%.

    Reported 1 · recomputed 5.555556

  • Table 1 laparoscopy percentage is incorrect

    Minor

    Table 1 reports 76 of 103 patients as 75%; that fraction is approximately 74%.

    Reported 75 · recomputed 73.786408

  • Robotic bladder resection percentage is incorrect

    Minor

    One bladder resection among 18 robotic patients represents approximately 6%, not 1%.

    Reported 1 · recomputed 5.555556

  • Conventional laparoscopy count differs between abstract and table

    Minor

    The abstract reports 77 patients who underwent conventional laparoscopy, while Table 1 reports 76.

  • Laparoscopic endometrioma resection percentage is incorrect

    Minor

    Table 2 lists 36 resections among 76 laparoscopic patients, which is approximately 47%, not 41%.

    Reported 41 · recomputed 47.368421

  • Robotic retrocervical resection percentage is incorrect

    Minor

    Eleven of 18 robotic patients represent approximately 61%, rather than the reported 65%.

    Reported 65 · recomputed 61.111111

6 of 6

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Schipper E, 2012, Int J Womens Health, 4, 383

Cited by

Sorted by citations

Authors
Hiltunen, J., Eloranta, M.-L., Lindgren, A., Keski-Nisula, L., Anttila, M., & Sallinen, H.
Affiliations
  • University of Eastern Finland (FI)
  • Kuopio University Hospital (FI)
  • Department of Gynecology and Obstetrics, Kuopio University Hospital, Kuopio University Hospital, Kuopio, Finland
Corresponding author
Sallinen, Hanna
Venue
Journal of International Medical Research
Published
2021-08
Volume
49
Issue
8
Pages
3000605211032788-3000605211032788
ISSN
  • 0300-0605 (ISSN-L)
  • 1473-2300
OpenAlex
W3135166270
Cited by
15
References
32
Citations by year
2026: 4 · 2025: 1 · 2024: 5 · 2023: 4 · 2021: 1
FWCI
2.16
Type
journal article
Language
en
Open access
Locations
  • Journal of International Medical Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • UEF eRepo (University of Eastern Finland) (submittedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Endometriosis Research and Treatment
  • Health Sciences › Medicine › Obstetrics and Gynecology › Gynecological conditions and treatments
  • Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
Keywords
deep infiltrating endometriosis, robot-assisted laparoscopic surgery, conventional laparoscopy, rectosigmoid endometriosis, parametrectomy, postoperative complications, quality of life, chronic pelvic pain, minimally invasive surgery
MeSH terms
Endometriosis, Female, Humans, Laparoscopy, Postoperative Complications, Quality of Life, Retrospective Studies, Treatment Outcome, Robotic Surgical Procedures

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