Evidence map›Paper›PMID 27743125›Full record

ArticleSurgical endoscopy2017

Postoperative day one neutrophil-to-lymphocyte ratio as a predictor of 30-day outcomes in bariatric surgery patients.

Matthew Da Silva, Michelle C Cleghorn, Ahmad Elnahas, Timothy D Jackson, Allan Okrainec, Fayez A Quereshy

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Article in Surgical endoscopy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
0.6field-weighted citation impact, top 26% 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

23 citing papers in PubMed, 45 citations in OpenAlex.

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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 3 institutions in 1 country.

Matthew Da SilvaDepartment of Medicine, University of Toronto, Toronto, ON, Canada.
Michelle C CleghornDivision of General Surgery, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada.
Ahmad ElnahasDivision of General Surgery, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada.
Timothy D JacksonDivision of General Surgery, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada.
Allan OkrainecDivision of General Surgery, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada.
Fayez A QuereshyDivision of General Surgery, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada. fayez.quereshy@uhn.ca.
University of Toronto · CAToronto Western Hospital · CAUniversity Health Network · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe neutrophil-to-lymphocyte ratio (NLR) is a marker that reflects systemic inflammation and organ dysfunction. Its use as a prognostic marker to predict complications following surgery has been recently described in the literature.

objectivesThe objective of our study was to evaluate the use of postoperative day one (POD1) NLR as a predictor of 30-day outcomes in patients undergoing bariatric surgery.

settingUniversity Hospital.

methodsWe performed a retrospective chart review of 789 patients who underwent bariatric surgery at our institution between March 2012 and May 2014. Data were collected from electronic patient records and administrative databases used for quality improvement. POD1 NLR values were obtained from complete blood counts along with a variety of 30-day clinical outcomes. Univariate and multivariable analyses were conducted to determine whether POD1 NLR ≥10 was associated with 30-day outcomes.

resultsSeven-hundred and thirty-seven patients were included in the study. Six-hundred and fifty-three Roux-en-Y gastric bypass surgeries (88.6 %) and 84 sleeve gastrectomy surgeries (11.4 %) were performed. All surgeries were performed laparoscopically. We observed a 4.7 % readmission rate, 2.2 % reoperation rate, 10.7 % postoperative occurrence rate, and 0.1 % mortality rate. After covariate adjustment, POD1 NLR ≥10 was found to be significantly associated with overall complications (OR 1.98, 95 % CI 1.01-3.87), major complications (OR 3.71, 95 % CI 1.76-7.82), reoperation (OR 3.63, 95 % CI 1.14-11.6), and prolonged postoperative length of stay (OR 3.70, 95 % CI 2.2-6.22).

conclusionPOD1 NLR was independently associated with 30-day outcomes following bariatric surgery. This easily obtained inflammatory marker may be used to help identify patients at a higher risk of developing early complications.

Indexed as

Bariatric SurgeryAdultAgedFemaleGastrectomyGastric BypassHumansInflammationLaparoscopyLength of StayLeukocyte CountLymphocyte CountLymphocytesMaleMiddle AgedMortalityBariatricComplicationsInflammatory markerNeutrophil-to-lymphocyte ratio (NLR)Postoperative

Identifiers

PMID27743125
OpenAlexW2531181643

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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.