Evidence map›Paper›PMID 29068989›Full record

Observational studyMedicine2017

Outcomes of patients with abdominoperineal resection (APR) and low anterior resection (LAR) who had very low rectal cancer.

Seung-Seop Yeom, In Ja Park, Sung Woo Jung, Se Heon Oh, Jong Lyul Lee, Yong Sik Yoon, Chan Wook Kim, Seok-Byung Lim, Nayoung Kim, Chang Sik Yu and 1 more

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04134104 (Incidence of The Bowel, Bladder, and Sexual Dysfunction Following Surgery for Colorectal Malignancy), which is not on this map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing 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.

NCT04134104 completednot on this map

Incidence of The Bowel, Bladder, and Sexual Dysfunction Following Surgery for Colorectal Malignancy

Typeobservational_patient_registrySponsorNational Academy of Medical Sciences, NepalRan2014 to 2017Enrolled38ConditionsBowel Dysfunction, Bladder Dysfunction, Sexual Dysfunction, Colorectal SurgeryArmsSurgery for Colorectal malignant diseases either LAR or APR
3 · Its place in the literature

Who cites it

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

  1. Changes in fatigue in rectal cancer patients before and after therapy: a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2020
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. The burden of low anterior resection syndrome on quality of life in patients with mid or low rectal cancer.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2020
    Article
  9. Article
  10. Treatment of Rectal Cancer in Older Adults.Current oncology reports · 2018
    Review
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

11 authors.

Seung-Seop YeomDepartment of Colon and Rectal Surgery Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea.
In Ja Park
Sung Woo Jung
Se Heon Oh
Jong Lyul Lee
Yong Sik Yoon
Chan Wook Kim
Seok-Byung Lim
Nayoung Kim
Chang Sik Yu
Jin Cheon Kim

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We compared the oncological outcomes of sphincter-saving resection (SSR) and abdominoperineal resection (APR) in 409 consecutive patients with very low rectal cancer (i.e., tumors within 3 cm from the anal verge); 335 (81.9%) patients underwent APR and 74 (18.1%) underwent SSR. The APR group comprised higher proportions of men (67.5% vs 55.4%, P = .049) and advanced-stage patients (P < .001). Preoperative chemoradiotherapy (PCRT) was more frequently administered in the SSR group (83.8% vs 52.8%, P < .001). Overall, the systemic and local recurrence rates were 29.1% and 6.1%, respectively. On stratification according to PCRT and pathologic stage, the mode of surgery did not affect the recurrence type. Moreover, recurrence-free survival (RFS) did not differ according to the mode of surgery in different cancer stages. RFS was associated with ypT and ypN stages in patients who received PCRT, while pN stage, lymphovascular invasion (LVI), and circumferential resection margin (CRM) involvement were risk factors for RFS in those who did not receive PCRT. Notably, SSR was not found to be a risk factor for RFS in either subgroup. Patients who were stratified according to cancer stage and PCRT also showed no differences in RFS according to the mode of surgery. Our results demonstrate that, regardless of PCRT administration, SSR is an effective treatment for very low rectal cancer, while CRM is an important prognostic factor for patients who did not receive PCRT.

Indexed as

Anal CanalAntimetabolites, AntineoplasticCapecitabineChemoradiotherapyDigestive System Surgical ProceduresDisease-Free SurvivalFemaleFluorouracilHumansMaleMiddle AgedNeoplasm MetastasisNeoplasm Recurrence, LocalNeoplasm StagingPerineumRectal NeoplasmsAntimetabolites, AntineoplasticCapecitabineFluorouracil

Identifiers

PMID29068989
PMCPMC5671822

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Registered trials

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.