Evidence map›Paper›PMID 31728754›Full record

ArticleSurgical endoscopy2020

Outcomes in rectal cancer patients undergoing laparoscopic or robotic low anterior resection compared to open: a propensity-matched analysis of the NCDB (2010-2015).

Brandon C Chapman, Mark Edgcomb, Ana Gleisner, Jon D Vogel

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 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.

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

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

  1. Pooled it
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  13. Role of minimally invasive surgery for rectal cancer.World journal of gastroenterology · 2020
    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

4 authors.

Brandon C ChapmanDepartment of Surgery, University of Colorado School of Medicine, Aurora, CO, USA. brandon.chapman@ucdenver.edu.ORCID 0000-0002-3689-665X
Mark EdgcombDepartment of Surgery, Saint Anthony's Hospital, Lakewood, CO, USA.
Ana GleisnerDepartment of Surgery, University of Colorado School of Medicine, Aurora, CO, USA.
Jon D VogelDepartment of Surgery, University of Colorado School of Medicine, Aurora, CO, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMinimally invasive resection of rectal cancer is controversial due to concerns of the oncologic efficacy and the difficulties of a laparoscopic total mesorectal excision (TME).

methodsUsing the National Cancer Database (NCDB), for the period 2010-2015, perioperative outcomes and overall survival (OS) in patients with rectal cancer who underwent laparoscopic or robotic low anterior resection (LLAR or RLAR) were compared to open LAR (OLAR) after propensity score matching.

results26,047 patients underwent LAR: 4062 (16%) RLAR, 9236 (35%) LLAR, and 12,749 (49%) OLAR. Patient and clinical tumor characteristics were similar between groups after matching. The conversion rates among patients undergoing LLAR and RLAR were 15% and 8%, respectively. In matched OLAR and LLAR patients, longitudinal and circumferential resection margins (CRM) were positive in 5.4% and 3.2% (p < 0.001) and 5.5% and 4.1% (p < 0.001); length of stay was 6 and 5 days, (p < 0.001); readmission was required in 6.5% and 7.0% (p = 0.112); OS at 1, 3, and 5 years were 95.5%, 83.7%, and 72.0% and 95.9%, 86.3%, and 76.4%, respectively (p < 0.001). In matched OLAR and RLAR patients, longitudinal and CRM were positive in 5.4% and 3.2% (p < 0.001) and 5.5% and 3.9% (p < 0.001); length of stay was 6 and 5 days (p < 0.001); readmission was required in 6.1% and 7.9%, (p = 0.010); and OS at 1, 3, and 5 years were 96.2%, 86.5%, and 77.1% and 97.5%, 89.4%, and 79.7%, respectively (p = 0.001).

conclusionsIn this national sample of propensity matched patients with rectal cancer who underwent open, laparoscopic, or robotic sphincter-saving rectal resection, only small differences in terms of resection margin status, length of stay, readmission, and overall survival were revealed. With acknowledgement of the limitations introduced by selection bias, our data indicate that each of the evaluated operative techniques results in acceptable outcomes for patients with rectal cancer.

Indexed as

Propensity ScoreAdenocarcinomaAgedDatabases, FactualFemaleHumansLaparoscopyMaleMargins of ExcisionMiddle AgedProctectomyRectal NeoplasmsRetrospective StudiesRobotic Surgical ProceduresSurvival RateTreatment OutcomeLaparoscopicLow anterior resectionMinimally invasive surgeryRectal cancerRoboticSurvival

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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.