Evidence map›Paper›PMID 36997824›Full record

ArticleUpdates in surgery2023

Elective colorectal cancer surgery in nonagenarians and postoperative outcomes.

Koichi Tamura, Mikihito Nakamori, Kenji Matsuda, Tsukasa Hotta, Masaki Nakamura, Shozo Yokoyama, Makoto Iwahashi, Naohisa Yamade, Hiroki Yamaue

Abstract read
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In one paragraph

Article in Updates in surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.4field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Nonagenarians: Outcomes after lung cancer surgery.Lung cancer (Amsterdam, Netherlands) · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Review
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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

9 authors at 6 institutions in 1 country.

Koichi TamuraDepartment of Surgery, National Hospital Organization Osaka Minami Medical Center, 2-1, Kidohigashicho, Kawachinagano, Osaka, 586-8521, Japan. tamukoh@wakayama-med.ac.jp.ORCID http://orcid.org/0000-0002-1016-9817
Mikihito NakamoriDepartment of Surgery, National Hospital Organization Osaka Minami Medical Center, 2-1, Kidohigashicho, Kawachinagano, Osaka, 586-8521, Japan.
Kenji MatsudaSecond Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Tsukasa HottaDepartment of Surgery, Naga Municipal Hospital, Kinokawa, Wakayama, Japan.
Masaki NakamuraDepartment of Surgery, Hashimoto Municipal Hospital, Hashimoto, Wakayama, Japan.
Shozo YokoyamaDepartment of Surgery, National Hospital Organization Minami Wakayama Medical Center, Tanabe, Wakayama, Japan.
Makoto IwahashiDepartment of Surgery, Wakayama Rosai Hospital, Wakayama, Wakayama, Japan.
Naohisa YamadeDepartment of Surgery, Shingu Municipal Medical Center, Shingu, Wakayama, Japan.
Hiroki YamaueSecond Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Wakayama Medical University · JPHashimoto Municipal Hospital · JPNaga Municipal Hospital · JPNational Hospital Organization · JPOsaka Minami Medical Center · JPWakayama Rosai Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe population of very elderly patients is increasing, and nonagenarians have significantly higher mortality rates and poorer rates of survival than younger patients. Meanwhile, recent studies have shown colorectal cancer surgery in nonagenarian patients to be feasible regarding postoperative outcomes. This retrospective study aims to evaluate the postoperative outcomes of nonagenarians in the latest clinical settings.

methodsConsecutive nonagenarian patients who underwent elective colorectal cancer surgery between 2018 and 2020 retrospectively enrolled (Trial registration number: UMIN000046296 on December 7th, 2021). Clinicopathological data and short-term postoperative outcomes were collected for statistical analysis.

resultsThis study included 81 nonagenarian patients (31 males, 50 females). Postoperative complications occurred in 21 patients (25.9%), and 3 patients died within 90 days (3.7%). Multivariate analysis revealed prognostic nutritional index was a significant predictor of postoperative complications (OR 2.99, 95% CI 0.78-9.10, P = 0.048), and performance status ≥ 3 could be an independent risk factor of 90-day mortality (HR 32.30, 95% CI 3.20-326.10, P = 0.032).

conclusionsShort-term outcomes after surgical treatment for nonagenarian patients with colorectal cancer were acceptable. Low prognostic nutritional index was closely related to postoperative complications and poor performance status could also lead to 90-day mortality. In aging populations, risk stratification to prevent poorer postoperative outcomes in nonagenarian patients is needed.

Indexed as

Colorectal NeoplasmsDigestive System Surgical ProceduresAgedAged, 80 and overFemaleHumansMaleNonagenariansPostoperative ComplicationsRetrospective StudiesRisk FactorsColorectal cancerComplicationNonagenarianPrognostic nutritional index

Identifiers

PMID36997824
OpenAlexW4362459314

What OpenQuestion holds

Textmetadata
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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.