Evidence map›Paper›PMID 27566605›Full record

ArticleSurgery today2017

Comparative benefits of laparoscopic surgery for colorectal cancer in octogenarians: a case-matched comparison of short- and long-term outcomes with middle-aged patients.

Koki Otsuka, Toshimoto Kimura, Masanori Hakozaki, Mizunori Yaegashi, Teppei Matsuo, Hitoshi Fujii, Kei Sato, Tomoki Hatanaka, Akira Sasaki

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgery today, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 24% 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, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
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  5. 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 1 institution in 1 country.

Koki OtsukaDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan. kokiotsu@iwate-med.ac.jp.
Toshimoto KimuraDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Masanori HakozakiDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Mizunori YaegashiDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Teppei MatsuoDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Hitoshi FujiiDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Kei SatoDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Tomoki HatanakaDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Akira SasakiDepartment of Surgery, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, 020-8505, Japan.
Iwate Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to compare the postoperative short- and long-term outcomes after laparoscopic colorectal surgery (LCS) between octogenarians and healthy middle-aged patients.

methodsBetween January 1997 and July 2009, 655 consecutive laparoscopic surgeries for colorectal cancer patients were operated by 1 colorectal surgeon. Ninety-three patients were octogenarians (≥80 years), and 133 patients were case-matched middle-aged (60-69 years) patients. We analyzed the mean operative time, blood loss, type of surgery for rectal cancer, length of hospital stay, mortality, and morbidity. The overall survival curve was constructed using the Kaplan-Meier method.

resultsThe American Society of Anesthesiologists classification was significantly higher in the octogenarians than in the middle-aged controls. However, there were no significant differences between the two groups in terms of the incidence of morbidities (11.7 vs. 9.2 %) and length of hospital stay (12.1 vs. 10.9 days). The number of lymph nodes harvested was significantly fewer (p < 0.05) and the operative time significantly shorter (p < 0.05) in the octogenarians than in the middle-aged controls. At a mean follow-up of 38.2 months, the overall 5-year survival rate was 64.8 % in the octogenarians and 92.4 % in the middle-aged group, whereas the cancer-specific 5-year survival rate was 91 % in the octogenarians and 95.7 % in the middle-aged group.

conclusionsWe suggest that advanced age should not be a contraindication for LCS, even for complex procedures, such as laparoscopic rectal resection.

Indexed as

AgedAged, 80 and overAge FactorsColorectal NeoplasmsDigestive System Surgical ProceduresHumansLaparoscopyMiddle AgedTime FactorsTreatment OutcomeColorectal cancerComparative studyElderlyLaparoscopyOctogenarian

Identifiers

PMID27566605
OpenAlexW2516288398

What OpenQuestion holds

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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.