Evidence map›Paper›PMID 32047769›Full record

ArticleAnnals of translational medicine2019

Prolonged surveillance of colorectal cancer patients after curative surgeries beyond five years of follow-up.

Lingheng Kong, Jianhong Peng, Jibin Li, Fulong Wang, Cong Li, Peirong Ding, Liren Li, Gong Chen, Xiaojun Wu, Zhenhai Lu and 3 more

Abstract read
In one paragraph

Article in Annals of translational medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Detection of parkinson's disease with neuroimaging modalities using machine learning and artificial intelligence: a systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors.

Lingheng KongDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Jianhong PengDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Jibin LiDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Fulong WangDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Cong LiDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Peirong DingDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Liren LiDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Gong ChenDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Xiaojun WuDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Zhenhai LuDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Yujing FangDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Zhizhong PanDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
Desen WanDepartment of Colorectal Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLocal or distant recurrence may develop beyond 5 years after radical resection for colorectal cancer (CRC). There is little evidence of a pattern of recurrence after the routinely recommended 5 years of follow-up. We aimed to investigate the efficacy of the prolonged follow-up beyond 5 years.

methodsWe retrospectively analyzed clinical and survival data of 1,054 CRC patients who underwent radical resections from 1980 to 1996 in our center. The prolonged surveillance was recommended for each patient with a duration of over 20 years.

resultsThe follow-up rates of 5, 10, 15, and 20 years were 92.6%, 86.9%, 82.3% and 76.8%, respectively. Overall survival (OS) rates of 5, 10, 15, and 20 years were 68.4%, 57.7%, 52.6% and 45.0%, respectively. Totally, 112 (10.6%) patients developed local recurrences and 174 (16.5%) patients developed distant metastases. The 99.2% postoperative local recurrences and distant metastases occurred within the first 15 years of surveillance. Survival differed between four age groups. Local recurrence was mainly diagnosed among rectal cancer patients, especially in those with lower-third rectal cancer. Metastases were commonly found in the liver and lungs. Patients with colon cancer and stage I/II manifested significantly longer OS than patients with rectal cancer and stage III/IV (both P<0.001).

conclusionsIn this study, postoperative local recurrences and distant metastases was rarely found after 15 years of enhanced surveillance, which indicated a "true cure" if the patient did not develop recurrences and metastases after 15 years.

Indexed as

Colorectal cancer (CRC)long-term follow-upradical resection

Identifiers

PMID32047769
PMCPMC7011595

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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.