Evidence map›Paper›PMID 34716474›Full record

SynthesisInternational journal of colorectal disease2022

Mid- and low-rectal cancer: laparoscopic vs open treatment-short- and long-term results. Meta-analysis of randomized controlled trials.

Mario Schietroma, Lucia Romano, Adriana Ionelia Apostol, Silvia Vada, Stefano Necozione, Francesco Carlei, Antonio Giuliani

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
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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

17 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Mario SchietromaDepartment of Biotechnological and Applied Clinical Science, General Surgery, University of L'Aquila, San Salvatore Hospital, Coppito (AQ), 67100, L'Aquila, Italy.
Lucia RomanoDepartment of Biotechnological and Applied Clinical Science, General Surgery, University of L'Aquila, San Salvatore Hospital, Coppito (AQ), 67100, L'Aquila, Italy. lucia.romano@graduate.univaq.it.ORCID http://orcid.org/0000-0003-0996-4490
Adriana Ionelia ApostolDepartment of Biotechnological and Applied Clinical Science, General Surgery, University of L'Aquila, San Salvatore Hospital, Coppito (AQ), 67100, L'Aquila, Italy.
Silvia VadaDepartment of Biotechnological and Applied Clinical Science, General Surgery, University of L'Aquila, San Salvatore Hospital, Coppito (AQ), 67100, L'Aquila, Italy.
Stefano NecozioneEpidemiology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
Francesco CarleiDepartment of Biotechnological and Applied Clinical Science, General Surgery, University of L'Aquila, San Salvatore Hospital, Coppito (AQ), 67100, L'Aquila, Italy.
Antonio GiulianiDepartment of Biotechnological and Applied Clinical Science, General Surgery, University of L'Aquila, San Salvatore Hospital, Coppito (AQ), 67100, L'Aquila, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe laparoscopic approach in the treatment of mid- or low-rectal cancer is still controversial. Compared with open surgery, laparoscopic resection of extraperitoneal cancer is associated with improved short-time non-oncological outcomes, although high-level evidence showing similar short- and long-term oncological outcomes is scarce.

objectiveThe aim of our paper is to study the oncological and non-oncological outcomes of laparoscopic versus open surgery for extraperitoneal rectal cancer. DATA SOURCES: A systematic review of MedLine, EMBASE, and CENTRAL from January 1990 to October 2020 was performed by combining various key words. STUDY SELECTION: Only randomized controlled trials (RCTs) comparing laparoscopic versus open surgery for extraperitoneal rectal cancer were included. The quality of RCTs was assessed using the Cochrane reviewer's handbook. This meta-analysis was based on the recommendation of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. INTERVENTION(S): This study analyzes laparoscopic versus open surgery for extraperitoneal rectal cancer.

main outcome measuresPrimary outcomes were oncological parameters.

resultsFifteen RCTs comprising 4,411 patients matched the selection criteria. Meta-analysis showed a significant difference between laparoscopic and open surgery in short-time non-oncological outcomes. Although laparoscopic approach increased operation time, it decreases significantly the blood loss and length of hospital stay. No significant difference was noted regarding short- and long-term oncological outcomes, but 4 and 5 years disease-free survival were statistically higher in the open group. LIMITATIONS: There are still questions about the long-term oncological outcomes of laparoscopic surgery for extraperitoneal rectal cancer being comparable to the open technique.

conclusionsConsidering that all surgical resections have been performed in high volume centers by expert surgeons, the minimally invasive surgery in patients with extraperitoneal cancer could still be not considered equivalent to open surgery in terms of oncological radicality.

Indexed as

LaparoscopyRectal NeoplasmsDisease-Free SurvivalHumansRandomized Controlled Trials as TopicTreatment OutcomeExtraperitoneal rectal cancerLaparoscopic surgeryMeta-analysisMid- and low-rectal cancerOncological outcomesOpen surgeryRandomized trialRectal cancer

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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.