Evidence map›Paper›PMID 26123526›Full record

SynthesisObesity surgery2016

Preoperative Methods to Reduce Liver Volume in Bariatric Surgery: a Systematic Review.

J van Wissen, N Bakker, H J Doodeman, E P Jansma, H J Bonjer, A P J Houdijk

Open access · hybridAbstract readSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Obesity surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 7 pooled it
5.7field-weighted citation impact, top 4% 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

45 citing papers in PubMed, 7 syntheses or guidelines pooled it, 94 citations in OpenAlex.

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  8. RESET-PKD: a pilot trial on short-term ketogenic interventions in autosomal dominant polycystic kidney disease.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2023
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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

6 authors at 2 institutions in 1 country.

J van WissenDepartment of Surgery, Medical Center Alkmaar, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands. Julia.vw@gmail.com.
N BakkerDepartment of Surgery, Medical Center Alkmaar, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands.
H J DoodemanDepartment of Surgery, Medical Center Alkmaar, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands.
E P JansmaVU Medical Center, Amsterdam, The Netherlands.
H J BonjerVU Medical Center, Amsterdam, The Netherlands.
A P J HoudijkDepartment of Surgery, Medical Center Alkmaar, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands.
Amsterdam UMC Location VUmc · NLMedisch Centrum Alkmaar · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients qualified for gastric bypass surgery have an enlarged and fatty liver. An essential step in gastric bypass surgery is elevation of the left liver lobe to expose the gastroesophageal junction. An enlarged and fatty liver complicates the surgical procedure and increases the risk for laceration of the liver. The aim of our study was to evaluate methods to reduce liver volume in patients prior to gastric bypass surgery.

methodsA systematic literature search of multiple databases, including PubMed, EMBASE.com, and the Cochrane Library and a hand search of reference lists, was performed. We used the search terms morbid obesity and liver, including their synonyms and controlled terms. Inclusion criteria were as follows: patients with morbid obesity who qualified for bariatric surgery, the use of a preoperative treatment to reduce liver volume, and the use of imaging techniques before and after treatment.

resultsIn total, 281 patients in 11 different studies were included. Preoperative diets reduced liver size by an average of 14%, alternative methods including nutritional supplements, reduced liver size between 20 and 43%, and an intragastric balloon by 32%.

conclusionsThis review showed that nutritional supplements and intragastric balloon are more effective than low calorie diets in reducing liver volume prior to gastric bypass surgery. However, low calorie diet is the preferable method to reduce liver volume, considering the level of evidence and practical applicability. There is a need for well-designed randomized studies with sufficient power in order to confirm the effectiveness of preoperative methods to reduce liver volume.

Indexed as

Gastric BypassCaloric RestrictionDietary SupplementsFatty LiverGastric BalloonHumansLiverObesity, MorbidOrgan SizePreoperative CareWeight LossBariatric surgeryLaparoscopic Roux-en-Y gastric bypassLiverLiver volumePreoperative carePreoperative diets

Identifiers

PMID26123526
PMCPMC4709363
OpenAlexW856219377

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.