Evidence map›Paper›PMID 37563516›Full record

ArticleObesity surgery2023

A Prospective Study on the Diagnoses for Abdominal Pain After Bariatric Surgery: The OPERATE Study.

Nienke van Olst, Marjolein R A Vink, Sterre C P de Vet, Barbara A Hutten, Victor E A Gerdes, Jeroen A W Tielbeek, Sjoerd C Bruin, Stijn J B van Weyenberg, Donald L van der Peet, Yair I Z Acherman

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PubMed Full text at PMC Publisher
In one paragraph

Article in Obesity surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Abdominal Pain After Bariatric Surgery and the Role of the Gut: A Review.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2026
    Review
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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

10 authors at 2 institutions in 1 country.

Nienke van OlstDepartment of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands. nvanolst@spaarnegasthuis.nl.ORCID http://orcid.org/0000-0002-4093-7637
Marjolein R A VinkDepartment of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands.
Sterre C P de VetDepartment of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands.
Barbara A HuttenDepartment of Epidemiology and Data Science, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
Victor E A GerdesDepartment of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands.
Jeroen A W TielbeekDepartment of Radiology, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands.
Sjoerd C BruinDepartment of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands.
Stijn J B van WeyenbergDepartment of Gastroenterology, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands.
Donald L van der PeetDepartment of Surgery, Amsterdam UMC, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
Yair I Z AchermanDepartment of Bariatric Surgery, Spaarne Gasthuis, Spaarnepoort 1, 2134 TM, Hoofddorp, The Netherlands.
Spaarne Ziekenhuis · NLAmsterdam University Medical Centers · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLong-term follow-up after bariatric surgery (BS) reveals high numbers of patients with abdominal pain that often remains unexplained. The aim of this prospective study was to give an overview of diagnoses for abdominal pain, percentage of unexplained complaints, number and yield of follow-up visits, and time to establish a diagnosis. MATERIALS AND

methodsPatients who visited the Spaarne Gasthuis Hospital, The Netherlands, between December 2020 and December 2021 for abdominal pain after BS, were eligible and followed throughout the entire episode of abdominal pain. Distinction was made between presumed and definitive diagnoses.

resultsThe study comprised 441 patients with abdominal pain; 401 (90.9%) females, 380 (87.7%) had Roux-en-Y gastric bypass, mean (SD) % total weight loss was 31.4 (10.5), and median (IQR) time after BS was 37.0 (11.0-66.0) months. Most patients had 1-5 follow-up visits. Readmissions and reoperations were present in 212 (48.1%) and 164 (37.2%) patients. At the end of the episode, 88 (20.0%) patients had a presumed diagnosis, 183 (41.5%) a definitive diagnosis, and 170 (38.5%) unexplained complaints. Most common definitive diagnoses were cholelithiasis, ulcers, internal herniations, and presumed diagnoses irritable bowel syndrome (IBS), anterior cutaneous nerve entrapment syndrome, and constipation. Median (IQR) time to presumed diagnoses, definitive diagnoses, or unexplained complaints was 16.0 (3.8-44.5), 2.0 (0.0-31.5), and 13.5 (1.0-53.8) days (p < 0.001). Patients with IBS more often had unexplained complaints (OR 95%CI: 4.457 [1.455-13.654], p = 0.009). At the end, 71 patients (16.1%) still experienced abdominal pain.

conclusionOver a third of abdominal complaints after BS remains unexplained. Most common diagnoses were cholelithiasis, ulcers, and internal herniations.

Indexed as

Bariatric SurgeryCholelithiasisGastric BypassIrritable Bowel SyndromeObesity, MorbidAbdominal PainFemaleHumansMaleProspective StudiesRetrospective StudiesUlcerAbdominal painBariatric surgeryDiagnosesEmergency departmentOutpatient clinicReadmissionsUnexplained complaints

Identifiers

PMID37563516
PMCPMC10514148
OpenAlexW4385751212

What OpenQuestion holds

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LicenceCC BY
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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.