Evidence map›Paper›PMID 29400012›Full record

ArticleJournal of gynecologic oncology2018

Therapeutic significance of full lymphadenectomy in early-stage ovarian clear cell carcinoma.

Hiroyuki Yamazaki, Yukiharu Todo, Chisa Shimada, Sho Takeshita, Shinichiro Minobe, Kazuhira Okamoto, Katsushige Yamashiro, Hidenori Kato

Open access · diamondAbstract read
In one paragraph

Article in Journal of gynecologic oncology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Hiroyuki YamazakiDivision of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan.ORCID 0000-0001-8759-9607
Yukiharu TodoDivision of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan. yukiharu@sap-cc.go.jp.ORCID 0000-0001-8692-4789
Chisa ShimadaDivision of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan.ORCID 0000-0001-9886-0188
Sho TakeshitaDivision of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan.ORCID 0000-0002-5484-7309
Shinichiro MinobeDivision of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan.
Kazuhira OkamotoDivision of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan.ORCID 0000-0003-3678-6669
Katsushige YamashiroDivision of Pathology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan.ORCID 0000-0001-6020-9496
Hidenori KatoDivision of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Japan.ORCID 0000-0002-2153-5843
National Hospital Organization Hokkaido Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study evaluated the therapeutic significance of full lymphadenectomy in early-stage ovarian clear cell carcinoma (OCCC).

methodsWe retrospectively reviewed records of 127 consecutive patients with pT1/pT2 and M0 OCCC who were treated between January 1995 and December 2015. We compared survival outcomes between those who did and did not undergo para-aortic lymph node dissection (PAND), and analyzed independent prognostic factors (Cox proportional hazards model with backward stepwise elimination).

resultsOf the 127 patients, 36 (28%) did not undergo lymphadenectomy; 12 (10%) patients underwent pelvic lymph node dissection (PLND) only; and 79 (62%) patients underwent both PLND and PAND. Of the 91 patients with lymphadenectomy, 11 (12%) had lymph node metastasis (LNM). The PAND⁻ and PAND⁺ groups did not significantly differ in age, distribution of pT status, radiologically enlarged lymph nodes, positive peritoneal cytology, capsule rupture, peritoneal involvement, and combined chemotherapy. Cox regression multivariate analysis confirmed that older age (hazard ratio [HR]=2.1; 95% confidence interval [CI]=1.0-4.3), LNM (HR=4.4; 95% CI=1.7-11.6), and positive peritoneal cytology (HR=4.2; 95% CI=2.1-8.4) were significantly and independently related to poor disease-specific survival (DSS), but implementation of both PLND and PAND (HR=0.4; 95% CI=0.2-0.8) were significantly and independently related to longer DSS.

conclusionAlthough few in number, there are some patients with early-stage OCCC who can benefit from full lymphadenectomy. Its therapeutic role should be continuously investigated in OCCC patients at potential risk of LNM.

Indexed as

Lymph Node ExcisionAdenocarcinoma, Clear CellAdultAgedAorta, AbdominalChemotherapy, AdjuvantFemaleHumansLymphatic MetastasisLymph NodesMiddle AgedOvarian NeoplasmsPelvisPrognosisRetrospective StudiesClear Cell AdenocarcinomaLymphatic MetastasisLymph Node ExcisionOvarian NeoplasmsPrognosis

Identifiers

PMID29400012
PMCPMC5823980
OpenAlexW2775532809

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.