Evidence map›Paper›PMID 30604079›Full record

ArticleObesity surgery2019

Magnetic Liver Retraction: an Incision-Less Approach for Less Invasive Bariatric Surgery.

Matthew Davis, Gerardo Davalos, Camila Ortega, Sugong Chen, Scott Schimpke, Kunoor Jain-Spangler, Jin Yoo, Keri Seymour, Ranjan Sudan, Dana Portenier and 1 more

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  8. Advancements in liver retraction techniques for laparoscopic gastrectomy.World journal of gastrointestinal surgery · 2025
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  14. Robotic Magnetic Surgery: Results From the First Prospective Clinical Trial.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2022
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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

11 authors.

Matthew DavisDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Gerardo DavalosDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Camila OrtegaDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Sugong ChenDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Scott SchimpkeDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Kunoor Jain-SpanglerDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Jin YooDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Keri SeymourDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Ranjan SudanDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Dana PortenierDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA.
Alfredo D GuerronDepartment of Surgery, Division of Weight Loss and Metabolic Surgery, Duke University Medical Center, 407 Crutchfield Street, Durham, NC, 27704, USA. alfredo.guerron-cruz@duke.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn bariatric surgery, retraction of the liver is essential to ensure appropriate visualization of the surgical field. Many devices are currently employed for this purpose. Generally, these devices require constant use of a port, or an additional incision. Magnetic technology provides a novel solution, by allowing liver retraction during bariatric procedures that do not require a dedicated port nor an extra incision.

methodsRetrospective review of consecutive patients who underwent magnetic-assisted liver retraction during primary or revisional laparoscopic bariatric surgery at the Duke Center for Metabolic and Weight Loss Surgery between October 2016 and August 2017.

resultsThe 73 cases were comprised of 29 primary sleeve gastrectomies, 24 gastric bypasses, 10 duodenal switches, 3 gastric band removals, and 7 revisions. All cases were completed laparoscopically. Mean pre-operative BMI was 43.6 kg/m

conclusionsMagnetic-assisted retraction is a novel approach that allows a safe, reproducible, incision-less technique for unconstrained, port-less intra-abdominal mobilization. The device successfully permitted optimal liver retraction during laparoscopic bariatric surgery, enhancing surgical exposure while decreasing the number of abdominal incisions.

Indexed as

ImmobilizationAdolescentAdultAgedBariatric SurgeryFemaleGastrectomyGastric BypassHumansLaparoscopyLiverMagnetic Field TherapyMaleMiddle AgedMinimally Invasive Surgical ProceduresObesity, MorbidBariatric surgeryIncision-lessLaparoscopicLiver retractionMagnetic-assisted surgery

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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.