Evidence map›Paper›PMID 26883138›Full record

ArticleInsights into imaging2016

How to diagnose acute appendicitis: ultrasound first.

Gerhard Mostbeck, E Jane Adam, Michael Bachmann Nielsen, Michel Claudon, Dirk Clevert, Carlos Nicolau, Christiane Nyhsen, Catherine M Owens

2 registry-linked trialsAbstract read
In one paragraph

Article in Insights into imaging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 70 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 2 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.

NCT03080103 completednot on this mapstarted 2017, after this paper: background citation

A Prospective Non-randomized Controlled, Multicenter, Multidisciplinary Trial Comparing Appendectomy and Conservative Treatment for Patients With Uncomplicated Acute Appendicitis (the ACTUAA STUDY).

TypeobservationalSponsorMauro PoddaRan2017 to 2019Enrolled300ConditionsAcute Appendicitis, Appendicitis Recurrent, Appendectomy, Antibiotic TherapyArmsLaparoscopic or Open appendectomy, Antibiotic-first therapy
NCT04130074 unknown statusnot on this mapstarted 2020, after this paper: background citation

Role of Duplex Doppler In Diagnosis of Acute Appendicitis : in Correlation With Surgical Management Outcome

TypeobservationalSponsorabdelRahman Ahmad abdAllahRan2020 to 2021Enrolled100ConditionsAppendicitis AcuteArmsduplex doppler ultra sound and CT
3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  2. Rapid MRI Abdomen for Assessment of Clinically Suspected Acute Appendicitis in the General Adult Population: a Systematic Review.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
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10 more citing papers are in PubMed but not listed here.

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

8 authors.

Gerhard MostbeckDepartment of Radiology, Wilhelminenspital, Montleartstr., 37 1160, Vienna, Austria. gerhard.mostbeck@chello.at.
E Jane AdamSt George's Hospital, Blackshaw Road, SW17 0QT, London, UK.
Michael Bachmann NielsenDepartment of Radiology, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark.
Michel ClaudonChildren Hospital, University Hospital-Nancy Brabois, Rue du Morvan, 54511, Vandoeuvre Les Nancy Cedex, France.
Dirk ClevertMunich University Hospital, Marchioninistraße. 15, 81377, München, Germany.
Carlos NicolauRadiology Department, Hospital Clinic, Villarroel 170, 08036, Barcelona, Spain.
Christiane NyhsenRadiology Department, City Hospitals Sunderland FT, Kayll Road, Sunderland, SR4 7TP, UK.
Catherine M OwensDepartment of Radiology, Great Ormond Street, WC1N, 3JH, London, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acute appendicitis (AA) is a common abdominal emergency with a lifetime prevalence of about 7 %. As the clinical diagnosis of AA remains a challenge to emergency physicians and surgeons, imaging modalities have gained major importance in the diagnostic work-up of patients with suspected AA in order to keep both the negative appendectomy rate and the perforation rate low. Introduced in 1986, graded-compression ultrasound (US) has well-established direct and indirect signs for diagnosing AA. In our opinion, US should be the first-line imaging modality, as graded-compression US has excellent specificity both in the paediatric and adult patient populations. As US sensitivity is limited, and non-diagnostic US examinations with non-visualization of the appendix are more a rule than an exception, diagnostic strategies and algorithms after non-diagnostic US should focus on clinical reassessment and complementary imaging with MRI/CT if indicated. Accordingly, both ionizing radiation to our patients and cost of pre-therapeutic diagnosis of AA will be low, with low negative appendectomy and perforation rates. Main Messages • Ultrasound (US) should be the first imaging modality for diagnosing acute appendicitis (AA). • Primary US for AA diagnosis will decrease ionizing radiation and cost. • Sensitivity of US to diagnose AA is lower than of CT/MRI. • Non-visualization of the appendix should lead to clinical reassessment. • Complementary MRI or CT may be performed if diagnosis remains unclear.

Indexed as

AppendicitisComputed tomographyDiagnostic algorithmMagnetic resonance imagingUltrasound

Identifiers

PMID26883138
PMCPMC4805616

What OpenQuestion holds

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Registered trials

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.