Evidence map›Paper›PMID 36568186›Full record

ArticleFrontiers in oncology2022

Trends of sphincter-preserving surgeries for low lying rectal cancer: A 20-year experience in China.

Kuo Zheng, Qingqing Hu, Guanyu Yu, Leqi Zhou, Yuting Yao, Yuan Zhou, Hao Wang, Liqiang Hao, Enda Yu, Zheng Lou and 4 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2022. 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
1.3field-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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  4. Observational
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  6. Review
  7. Article
  8. Review
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  10. Self-efficacy and symptom distress in sphincter-preserving rectal cancer patients: the mediating role of intestinal symptoms self-management.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
    Article
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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

14 authors at 2 institutions in 1 country.

Kuo ZhengDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Qingqing HuGlobal Epidemiology, Office of Chief Medical Officer, Johnson & Johnson, Shanghai, China.
Guanyu YuDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Leqi ZhouDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Yuting YaoDepartment of Professional Education, Johnson & Johnson Medical (Shanghai) LTD, Shanghai, China.
Yuan ZhouDepartment of Professional Education, Johnson & Johnson Medical (Shanghai) LTD, Shanghai, China.
Hao WangDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Liqiang HaoDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Enda YuDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Zheng LouDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Yongjing ZhangGlobal Epidemiology, Office of Chief Medical Officer, Johnson & Johnson, Shanghai, China.
Hong QiuGlobal Epidemiology, Office of Chief Medical Officer, Johnson & Johnson, Shanghai, China.
Ronggui MengDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Wei ZhangDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Changhai Hospital · CNSecond Military Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Over the last 2 decades, patients with low rectal cancer have had better outcomes from improvements in surgical techniques in sphincter preservation. We aimed to quantify the trends in sphincter-preserving surgeries for low rectal cancer over 20 years in a top tertiary hospital in China. Methods: Between 1999 and 2021, a cohort of patients with primary malignant rectal tumor ≤5cm from the anal verge and who received elective surgeries at Changhai Hospital, Shanghai, China, was identified. Data were extracted from electronic medical records. A Joinpoint Regression Model was used to analyze trends in surgical procedures by average annual percentage change (AAPC). Adjusted Cox proportional hazards regression model was used to assess overall survival. Results: Among a total of 4,172 patients during the study period, 3,111 (74.6%) underwent a sphincter-preserving surgery and 1,061 (25.4%) received APR. Sphincter-preserving surgery increased 3.6% per year (95%CI, 2.3-4.9). Low anterior resection was the most performed procedure (86.3%) and maintained a steady trend, while intersphincteric resection increased 49.4% annually (95%CI, 19.5-86.7) after initiation. Laparoscopic techniques increased 15.1% per year (95%CI, 8.4-43.4) after initiation. Sphincter-preserving surgery increased annually for tumors ≤2cm, 2-≤3cm and 3-≤4cm from the anal verge (AAPC 7.1, 4.5-9.8; 4.7, 3.1-6.3; 2.7, 1.7-3.6, respectively). Furthermore, patients with sphincter-preserving surgery had a better overall survival than abdominoperineal resection (APR) patients (adjusted HR 0.78, 95% CI, 0.65-0.93, p=.01). Conclusions: Utilization of sphincter-preserving surgeries increased significantly over the last 20 years. Patients with low rectal cancer who underwent sphincter preservation had better survival than similar patients who underwent APR.

Indexed as

abdominoperineal resectionlow anterior resectionlow rectal cancerrectal cancer survivalsphincter preservationtrends in surgery

Identifiers

PMID36568186
PMCPMC9773833
OpenAlexW4311870764

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LicenceCC BY
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Registered trials

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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.