Evidence map›Paper›PMID 32543788›Full record

ArticleBJS open2020

Incidence and management of patients with colorectal cancer and synchronous and metachronous colorectal metastases: a population-based study.

V Väyrynen, E-V Wirta, T Seppälä, E Sihvo, J-P Mecklin, K Vasala, I Kellokumpu

Open access · goldAbstract read
In one paragraph

Article in BJS open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed, 5 pooled it
3.8field-weighted citation impact, top 5% 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

93 citing papers in PubMed, 5 syntheses or guidelines pooled it, 139 citations in OpenAlex.

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  5. Treatment of Metastatic Colorectal Cancer: ASCO Guideline.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023
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33 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 2 countries.

V VäyrynenDepartments of Gastrointestinal Surgery, Jyväskylä, Finland.
E-V WirtaDepartment of Gastrointestinal Surgery, Tampere University Hospital, Tampere, Finland.
T SeppäläDepartment of Gastrointestinal Surgery, Helsinki University Hospital, Helsinki, Finland.
E SihvoThoracic Surgery, Jyväskylä, Finland.
J-P MecklinDepartments of Gastrointestinal Surgery, Jyväskylä, Finland.
K VasalaOncology, Central Hospital of Central Finland, Jyväskylä, Finland.
I KellokumpuDepartments of Gastrointestinal Surgery, Jyväskylä, Finland.
University of Jyväskylä · FICentral Finland Health Care District · FIJohns Hopkins Hospital · USTampere University · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis population-based study aimed to examine the incidence, patterns and results of multimodal management of metastatic colorectal cancer.

methodsA retrospective population-based study was conducted on patients with metastatic colorectal cancer in Central Finland in 2000-2015. Clinical and histopathological data were retrieved and descriptive analysis was conducted to determine the pattern of metastatic disease, defined as synchronous, early metachronous (within 12 months of diagnosis of primary disease) and late metachronous (more than 12 months after diagnosis). Subgroups were compared for resection and overall survival (OS) rates.

resultsOf 1671 patients, 296 (17·7 per cent) had synchronous metastases, and 255 (19·6 per cent) of 1302 patients with resected stage I-III tumours developed metachronous metastases (94 early and 161 late metastases). Liver, pulmonary and intraperitoneal metastases were the most common sites. The commonest metastatic patterns were a combination of liver and lung metastases. The overall metastasectomy rate for patients with synchronous metastases was 16·2 per cent; in this subgroup, 3- and 5-year OS rates after any resection were 63 and 44 per cent respectively, compared with 7·1 and 3·3 per cent following no resection (P < 0·001). The resection rate was higher for late than for early metachronous disease (28·0 versus 17 per cent respectively; P = 0·048). Three- and 5-year OS rates after any resection of metachronous metastases were 78 and 62 per cent respectively versus 42·1 and 18·2 per cent with no metastasectomy (P < 0·001). Similarly, 3- and 5-year OS rates after any metastasectomy for early metachronous metastases were 57 and 50 per cent versus 84 and 66 per cent for late metachronous metastases (P = 0·293).

conclusionThe proportion of patients with metastatic colorectal cancer was consistent with that in earlier population-based studies, as were resection rates for liver and lung metastases and survival after resection. Differentiation between synchronous, early and late metachronous metastases can improve assessment of resectability and survival.

Indexed as

MetastasectomyAgedAged, 80 and overColorectal NeoplasmsFemaleFinlandHumansIncidenceLiver NeoplasmsLung NeoplasmsMaleMiddle AgedRetrospective StudiesSurvival Rate

Identifiers

PMID32543788
PMCPMC7397359
OpenAlexW3035470988

What OpenQuestion holds

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LicenceCC BY
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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.