Evidence map›Paper›PMID 23404145›Full record

Trial reportSurgical endoscopy2013

Oxidative stress markers in laparoscopic versus open colectomy for cancer: a double-blind randomized study.

George Pappas-Gogos, Constantinos Tellis, Konstantinos Lasithiotakis, Alexandros D Tselepis, Konstantinos Tsimogiannis, Evangelos Tsimoyiannis, George Chalkiadakis, Emmanuel Chrysos

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Surgical endoscopy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the 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
2.0field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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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

8 authors at 3 institutions in 1 country.

George Pappas-GogosDepartment of General Surgery, "G. Hatzikosta" General Hospital, Ioannina, Greece. atlscrete@med.uoc.gr
Constantinos Tellis
Konstantinos Lasithiotakis
Alexandros D Tselepis
Konstantinos Tsimogiannis
Evangelos Tsimoyiannis
George Chalkiadakis
Emmanuel Chrysos
General Hospital of Ioannina G. Hatzikosta · GRUniversity Hospital of Heraklion · GRUniversity of Ioannina · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColorectal cancer as well as colorectal surgery is associated with increased oxidative stress through different mechanisms. In this study the levels of different oxidative stress markers were comparatively assessed in patients who underwent laparoscopic or conventional resection for colorectal cancer.

methodsSixty patients with colorectal cancer were randomly assigned to undergo laparoscopic (LS) or open surgery (OS). Lipid, protein, RNA, and nitrogen damage was investigated by measuring serum 8-isoprostanes (8-epiPGF2α), protein carbonyls (PC), 8-hydroxyguanosine (8-OHG), and 3-nitrotyrosine (3-NT), respectively. The primary end point of the study was to analyze and compare serum levels of the oxidative stress markers between the groups.

resultsPostoperative serum levels of 8-epiPGF2α, 3-NT, and 8-OHG were significantly lower in the LS group at 24 h after surgery (p < 0.05). At 6 h postoperatively, the levels of 8-epiPGF2α and 3-NT were significantly lower in the LS group (p < 0.05). No difference in the levels of PC was found between the two groups at any time point. In the OS group, postoperative levels of 8-epiPGF2α were significantly lower than the preoperative values (p < 0.01). In the LS group, the postoperative values of 8-epiPGF2α, 3-NT, and 8-OHG were significantly lower than the preoperative values (p < 0.05).

conclusionLaparoscopic surgery for colorectal cancer is associated with lower oxidative stress compared to open surgery. 8-epiPGF2α was the most suitable marker for readily defining the oxidative status in patients who underwent surgery for colorectal cancer.

Indexed as

LaparoscopyOxidative StressAgedAnalysis of VarianceBiomarkersColectomyColorectal NeoplasmsDinoprostDouble-Blind MethodFemaleGuanosineHumansMalePostoperative PeriodProtein CarbonylationTyrosine3-nitrotyrosine8-epi-prostaglandin F2alpha8-hydroxyguanosineBiomarkersDinoprostGuanosineTyrosine

Identifiers

PMID23404145
OpenAlexW2045649400

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.