Evidence map›Paper›PMID 32558987›Full record

SynthesisBJOG : an international journal of obstetrics and gynaecology2021

Postoperative hormonal treatment for prevention of endometrioma recurrence after ovarian cystectomy: a systematic review and network meta-analysis.

R Wattanayingcharoenchai, S Rattanasiri, C Charakorn, J Attia, A Thakkinstian

Open access · hybridAbstract readSystematic ReviewNetwork Meta-Analysis
In one paragraph

Synthesis in BJOG : an international journal of obstetrics and gynaecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
5.4field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Review
  7. Roles of Goserelin in Gynecological Disorders.Drug design, development and therapy · 2026
    Review
  8. Surgical management of endometriosis: surgical techniques, adjuvant therapy, and long-term management Number 10 - 2026.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2026
    Review
  9. Article
  10. Clinical Guidance Paper VVOG: Pharmacological treatment of endometriosis-related pain.European journal of obstetrics & gynecology and reproductive biology: X · 2025
    Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Hormonal treatments for endometriosis: The endocrine background.Reviews in endocrine & metabolic disorders · 2022
    Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

R WattanayingcharoenchaiDepartment of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.ORCID 0000-0002-1434-4627
S RattanasiriDepartment of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.ORCID 0000-0001-7213-6116
C CharakornDepartment of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
J AttiaCentre for Clinical Epidemiology and Biostatistics, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, New Lambton, Australia.
A ThakkinstianDepartment of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Mahidol University · THUniversity of Newcastle Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe efficacy of hormonal regimens for the prevention of endometrioma recurrence in women who have undergone conservative surgery is still controversial.

objectiveTo compare the efficacy of different hormonal regimens in this context and to rank them. SEARCH STRATEGY: MEDLINE and Scopus databases were searched through January 2020. SELECTION CRITERIA: Randomised controlled trials (RCTs) or cohorts, comparing the effect of any pair of interventions (i.e. cyclic oral contraceptives [OC], continuous OC, gonadotropin-releasing hormone agonist [GnRHa], dienogest [DNG], levonorgestrel-releasing intrauterine system [LNG-IUS] and expectant management) on endometrioma recurrence were selected. DATA COLLECTION AND ANALYSIS: Data were independently extracted by two reviewers. Relative treatment effects were estimated using network meta-analysis (NMA) and ranked in descending order. MAIN

resultsSix RCTs (675 patients) and 16 cohorts (3089 patients) were included. NMA of the RCTs involving expectant management, cyclic OC, continuous OC, GnRHa and GnRHa + LNG-IUS, showed that all hormonal regimens had a nonsignificant lower risk of endometrioma recurrence compared with expectant management. NMA of the cohorts involving expectant, cyclic OC, continuous OC, GnRHa, DNG, LNG-IUS, GnRHa + OC, and GnRHa + LNG-IUS indicated that LNG-IUS, DNG, continuous OC, GnRHa + OC and cyclic OC had a significantly lower risk of endometrioma recurrence than expectant management. LNG-IUS was ranked highest, followed by DNG and GnRHa + LNG-IUS. Long-term use of hormonal treatment either OC or progestin had a significantly lower risk of endometrioma recurrence than expectant treatment.

conclusionIn the NMA of RCTs, there was no evidence supporting hormonal treatment for postoperative prevention of endometrioma recurrence. This was at odds with the cohort evidence, which found the protective effect of OC and progestin regimens, especially long-term treatment. Large-scale RCTs of these agents are still required. TWEETABLE ABSTRACT: Hormonal regimens given as long-term treatment tend to reduce risk of endometrioma recurrence after conservative surgery.

Indexed as

Estrogen Replacement TherapyOvariectomyEndometriosisFemaleHumansNeoplasm Recurrence, LocalOvarian DiseasesPostoperative ComplicationsRandomized Controlled Trials as TopicEndometriomahormonal treatmentnetwork meta-analysisovarian cystectomyrecurrence

Identifiers

PMID32558987
PMCPMC7754428
OpenAlexW3036036264

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.