ArticleGut2021
Impact of the COVID-19 pandemic on UK endoscopic activity and cancer detection: a National Endoscopy Database Analysis.
Article in Gut, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07341126 (Surveillance Digital Rectoscopy After Local Excision of Rectal Tumours), which is not on this map. Cited by 171 papers, 8 of them syntheses that pooled 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.
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.
Surveillance Digital Rectoscopy After Local Excision of Rectal Tumours
Who cites it
171 citing papers in PubMed, 8 syntheses or guidelines pooled it, 283 citations in OpenAlex.
- The multifaceted impact of the COVID-19 pandemic on colorectal cancer care: a systematic review of management disruptions, stage migration, and survival outcomes.Frontiers in oncology · 2026Pooled it
- Preoperative anastomotic evaluation prior to ileostomy closure: A 5-year UK survey, systematic review, and meta-analysis.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2025Pooled it
- Impact of the COVID-19 Pandemic on Colorectal Cancer Diagnosis and Treatment: a Systematic Review.Journal of gastrointestinal cancer · 2023Pooled it
- Effect of COVID-19 on gastrointestinal endoscopy practice: a systematic review.Annals of medicine · 2022Pooled it
- Impact of the COVID-19 Pandemic on Colorectal Cancer Screening: a Systematic Review.Journal of gastrointestinal cancer · 2022Pooled it
- The Effect of Delayed Oncology Surgery on Survival Outcomes for Patients With Gastric Cancer During the COVID-19 Pandemic: Evidence-Based Strategies.Frontiers in oncology · 2022Pooled it
- AGA Rapid Review and Guideline for SARS-CoV2 Testing and Endoscopy Post-Vaccination: 2021 Update.Gastroenterology · 2021Guideline
- Prevalence and Persistent Shedding of Fecal SARS-CoV-2 RNA in Patients With COVID-19 Infection: A Systematic Review and Meta-analysis.Clinical and translational gastroenterology · 2021Pooled it
- A Centralized Program with Stepped Support Increases Adherence to Colorectal Cancer Screening Over 9 Years: a Randomized Trial.Journal of general internal medicine · 2022Trial
- Temporal trends and demographic disparities in gastric ulcer mortality in the United States: a population-based study, 1999-2020.Annals of medicine and surgery (2012) · 2026Article
- Utilization Trends of Colorectal Endoscopic Submucosal Dissection Following Reimbursement Revision and During the COVID-19 Pandemic: An Interrupted Time-Series Analysis Using a Large Japanese Claims Database.Digestive diseases and sciences · 2026Article
- Trends and etiological profile of kidney cancer in China from 1990 to 2023: an analysis of modifiable risk factors and prevention implications using GBD 2023 estimates.International journal of clinical oncology · 2026Review
- A steadily increasing trend in the incidence of esophageal adenocarcinoma in Akita Prefecture, Japan, through 2024.Journal of gastroenterology · 2026Article
- Effectiveness and Safety of First-Line Empirical Eradication Therapy with Rebamipide: Results from the European Registry onAntibiotics (Basel, Switzerland) · 2026Article
- Changes in Disease Severity and Outcomes Among Electively Admitted Cirrhosis Patients During the COVID-19 Era.Healthcare (Basel, Switzerland) · 2026Article
- Comparative Safety and Volume Trends in Gastrostomy Tube Placement: Percutaneous Endoscopic Versus Percutaneous Radiologic Approaches at a Single Center.Journal of clinical medicine · 2026Article
- Deviations from pre-pandemic lung cancer mortality trends in the United States: a 25-year counterfactual analysis (1999-2023).BMC public health · 2026Article
- Colorectal Cancer in China, 1990 to 2023: Trends, Modifiable Risks, and Prevention Priorities Based on Global Burden of Disease 2023 Estimates.Journal of gastrointestinal cancer · 2026Article
- Learning from an Emerging Infection: How the COVID-19 Pandemic Reshaped Gastric Cancer Care.Life (Basel, Switzerland) · 2026Review
- Socio-demographic disparities in liver cancer mortality in China: a national analysis from 2015 to 2021.Frontiers in oncology · 2026Article
111 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe COVID-19 pandemic has had a major global impact on endoscopic services. This reduced capacity, along with public reluctance to undergo endoscopy during the pandemic, might result in excess mortality from delayed cancer diagnosis. Using the UK's National Endoscopy Database (NED), we performed the first national analysis of the impact of the pandemic on endoscopy services and endoscopic cancer diagnosis.
designWe developed a NED COVID-19 module incorporating procedure-level data on all endoscopic procedures. Three periods were designated: pre-COVID (6 January 2020 to 15 March), transition (16-22 March) and COVID-impacted (23 March-31 May). National, regional and procedure-specific analyses were performed. The average weekly number of cancers, proportion of missing cancers and cancer detection rates were calculated.
resultsA weekly average of 35 478 endoscopy procedures were performed in the pre-COVID period. Activity in the COVID-impacted period reduced to 12% of pre-COVID levels; at its low point, activity was only 5%, recovering to 20% of pre-COVID activity by study end. Although more selective vetting significantly increased the per-procedure cancer detection rate (pre-COVID 1.91%; COVID-impacted 6.61%; p<0.001), the weekly number of cancers detected decreased by 58%. The proportion of missing cancers ranged from 19% (pancreatobiliary) to 72% (colorectal).
conclusionThis national analysis demonstrates the remarkable impact that the pandemic has had on endoscopic services, which has resulted in a substantial and concerning reduction in cancer detection. Major, urgent efforts are required to restore endoscopy capacity to prevent an impending cancer healthcare crisis.
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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.