Evidence map›Paper›PMID 41493841›Full record

SynthesisUnited European gastroenterology journal2026

Was Motorized Spiral Enteroscopy Too Risky? A Systematic Review and Meta-Analysis Including German Registry Data.

Ingo Steinbrück, Armin Kuellmer, Siegbert Faiss, Hendrik Buchholz, Björn Lewerenz, Daniel Fitting, Felix Wiedbrauck, Stephan Hollerbach, Arthur Schmidt, Johannes Wilhelm Rey and 10 more

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in United European gastroenterology journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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

20 authors.

Ingo SteinbrückDepartment of Medicine and Gastroenterology, Evangelisches Diakoniekrankenhaus Freiburg, Academic Teaching Hospital, University of Freiburg, Freiburg, Germany.ORCID https://orcid.org/0000-0001-9056-8844
Armin KuellmerDepartment of Medicine II, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.ORCID https://orcid.org/0000-0002-8723-0700
Siegbert FaissDepartment of Gastroenterology, Sana Klinikum Lichtenberg, Academic Teaching Hospital, University of Berlin, Berlin, Germany.
Hendrik BuchholzDepartment of Gastroenterology, Sana Klinikum Lichtenberg, Academic Teaching Hospital, University of Berlin, Berlin, Germany.
Björn LewerenzDepartment of Gastroenterology and Hepatology, Klinikum Traunstein, Academic Teaching Hospital, University of Munich, Traunstein, Germany.
Daniel FittingDepartment of Gastroenterology and Hepatology, Klinikum Traunstein, Academic Teaching Hospital, University of Munich, Traunstein, Germany.
Felix WiedbrauckDepartment of Gastroenterology, Allgemeines Krankenhaus Celle, Academic Teaching Hospital, University of Hannover, Celle, Germany.
Stephan HollerbachDepartment of Gastroenterology, Allgemeines Krankenhaus Celle, Academic Teaching Hospital, University of Hannover, Celle, Germany.
Arthur SchmidtDepartment of Medicine II, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Johannes Wilhelm ReyDepartment of Internal Medicine II, Klinikum Osnabrück, Academic Teaching Hospital, University of Münster, Osnabrück, Germany.
Martha M KirsteinDepartment of Medicine I, University Hospital Lübeck, University Hospital of Schleswig-Holstein, Lübeck, Germany.
Franz-Ludwig DumoulinDepartment of Medicine and Gastroenterology, Gemeinschaftskrankenhaus Bonn, Academic Teaching Hospital, University of Bonn, Bonn, Germany.ORCID https://orcid.org/0000-0002-1058-7867
Fabian Maximilian WittichDepartment of Medicine and Gastroenterology, Gemeinschaftskrankenhaus Bonn, Academic Teaching Hospital, University of Bonn, Bonn, Germany.
Andreas WannhoffDepartment of Gastroenterology, RKH Klinikum Ludwigsburg, Academic Teaching Hospital, University of Heidelberg, Ludwigsburg, Germany.
Jürgen PohlDepartment of Gastroenterology, Asklepios Klinik Altona, Academic Teaching Hospital University of Hamburg, Hamburg, Germany.
Matthias FriesickeDepartment of Gastroenterology, Asklepios Klinik Altona, Academic Teaching Hospital University of Hamburg, Hamburg, Germany.
Viktor RempelDepartment of Gastroenterology, St. Anna Hospital Herne, Academic Teaching Hospital Ruhr University Bochum, Bochum, Germany.
Hans-Peter AllgaierDepartment of Medicine and Gastroenterology, Evangelisches Diakoniekrankenhaus Freiburg, Academic Teaching Hospital, University of Freiburg, Freiburg, Germany.
Christian WiessnerInstitute for Medical Biometry and Epidemiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
Thomas RöschDepartment of Interdisciplinary Endoscopy, University Hospital Hamburg-Eppendorf, Hamburg, Germany.ORCID https://orcid.org/0000-0003-2270-2495

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND STUDY

aimsMotorized spiral enteroscopy (MSE) was introduced as a major advancement in small-bowel enteroscopy, enabling higher complete enteroscopy rates with shorter procedure times. However, after a fatal adverse event (AE) involving severe esophageal injury, the device was withdrawn from the market in July 2023. This raised questions about whether earlier safety signals were missed.

methodsWe conducted a systematic review and meta-analysis comparing MSE with balloon-based enteroscopy (double-balloon [DBE] and single-balloon enteroscopy [SBE], analyzed together). Outcomes included overall AEs, serious AEs (SAEs), and data collection quality. Results from the German PowerSpiral Registry were included, comprising 647 MSE procedures in 523 patients (January 2020-July 2023) before registry closure following device withdrawal.

resultsThirteen MSE studies (including the registry) and 55 DBE/SBE studies were analyzed, totaling 12,559 enteroscopies (2024 MSE; 10,535 DBE/SBE). MSE showed significantly higher rates of AEs (10.8% vs. 1.6%) and SAEs (1.5% vs. 0.4%). Procedure-related SAEs were also more frequent with MSE (1.1% vs. 0.3%). Esophageal injury (0.10% vs. 0.009%) and intestinal perforation (0.5% vs. 0.1%) occurred more often with MSE, whereas acute pancreatitis (0.05% vs. 0.27%) and esophageal perforation (0% vs. 0.02%) were more common with DBE/SBE. AE reporting for MSE was detailed, but structured follow-up and reliable case tracking were inconsistent.

conclusionsMSE was associated with higher AE and SAE rates than balloon enteroscopy. These findings highlight the need for cautious adoption, rigorous safety monitoring, and more robust AE reporting when introducing innovative endoscopic technologies. STUDY REGISTRATION: The prospective and retrospective cohort studies were registered in the German Registry of Clinical Studies (DRKS), namely DRKS00026990 and DRKS00028571.

Indexed as

Balloon EnteroscopySingle-Balloon EnteroscopyGermanyHumansIntestinal PerforationIntestine, SmallRegistriesballoon enteroscopydevice‐assisted enteroscopyenteroscopymotorized spiral enteroscopysmall bowel endoscopy

Identifiers

PMID41493841
PMCPMC12781184

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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.