Gastroenterology

Colorectal cancer mortality rates in an English county, Shropshire (2025)

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Type of publication:

Conference abstract

Author(s):

*Wilson R.; *Shah J.; *Shittu S.; *Goh Y.L.; *Ball W.

Citation:

British Journal of Surgery. Conference: Annual Congress of the Association of Surgeons of Great Britain and Ireland. Edinburgh United Kingdom. 112(Supplement 13) (pp xiii69), 2025. Date of Publication: 01 Aug 2025.

Abstract:

Aim: To evaluate outcomes of patients dying within 12 months of colorectal cancer diagnosis in Shropshire County. Method(s): A single-centre retrospective review was conducted on patients who died within 12 months of diagnosis between 2020 and 2024. Patient demographics, performance status, time from referral to imaging, diagnosis, MDT, death, and treatment intent were collected. Result(s): A total of 103 patients (44 male, 59 female), with a mean age of 74 (range 32-96) years. Most had a performance status of 1 and lived in their own home (92%). Geographically, 60% lived in Shrewsbury, 34% in Telford, and 9% in Wolverhampton. Referral sources were mainly from GPs (55%), with 74% seen within two weeks. Other referral sources include emergency admission to SAU (20%) and AMU (16%). All patients underwent CT imaging, and 57% had endoscopic procedures. The average age at death was 75 (range 34-97), with the most common cause being distant metastatic sigmoid cancer. The average time from diagnosis to death was 4.4 months. Treatment intent was palliative for 90% of patients (44% best supportive care, 56% oncology), and 59% of those referred to oncology received palliative treatment. Eight patients with curative intent died due to emergency presentation with sepsis and multiorgan failure (2), prior to commencing treatment (1), complications of treatment (3), or declined treatment (2). Conclusion(s): This audit highlights that colorectal cancer patients in Shropshire are predominantly elderly, over 70 years, with significant co-morbidities and a performance status of at least 1.

DOI: 10.1093/bjs/znaf166.263

Standardisation of colorectal robotic-assisted surgery (RAS) training: A roundtable discussion (2025)

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Type of publication:

Conference abstract

Author(s):

*Kawar L.; Shakir T.; *El-sayed C.

Citation:

Colorectal Disease. Conference: Association of Coloproctology of Great Britain and Ireland Annual Meeting. Harrogate United Kingdom. 27(Supplement 2) (no pagination), 2025. Date of Publication: 01 Sep 2025.

Abstract:

Purpose: The current landscape of colorectal robotic-assisted surgery (RAS) training is marked by significant variability. In order to gather opinions, a webinar was hosted by The Dukes' Club, the UK network for colorectal surgical trainees. This seeked to understand from a panel of expert RAS surgeons with various stakeholder roles in RAS training, the optimal method of delivering standardised RAS training in the UK. Method(s): This consensus study is based on a one-hour webinar held on 4th March 2024. Panellists included robotic surgery preceptors and proctors from both CMR Surgical (UK) and Intuitive (USA) respectively; members of robotic subcommittees within speciality associations, and providers of European fellowships. A thematic analysis was conducted to systematically analyse the qualitative data. Result(s): The roundtable featured two consultant urologists and three consultant colorectal surgeons. Four main themes with relevant sub-themes emerged: (1) the current state of robotic training, (2) training components of RAS, (3) challenges in delivering training, and (4) strategies for improvement. The discussion highlighted the variability in training based on geographical location and surgical speciality. Trainer readiness was discussed, with emphasis placed on the temporary nature of this. The importance of adopting RAS skills early in training with stepwise progression, was highlighted. Essential components of a standardised curriculum were identified including e-learning, simulation, and mentorship. Conclusion(s): Standardising colorectal RAS training is vital for equitable and effective skill development. Future directions include enhancing access and resource allocation, implementing stepwise certification, and integrating artificial intelligence and machine learning.

DOI: 10.1111/codi.70177

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Acute management of severe inflammatory bowel disease: a clinical audit for quality improvement (2025)

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Type of publication:

Conference abstract

Author(s):

*Baumert A.; *Cheetham M.

Citation:

Colorectal Disease. Conference: Association of Coloproctology of Great Britain and Ireland Annual Meeting. Harrogate United Kingdom. 27(Supplement 2) (no pagination), 2025. Date of Publication: 01 Sep 2025.

Abstract:

National guidelines for the acute management of inflammatory bowel disease (IBD) have been developed to advise clinicians on first-line investigations and optimal treatment pathways. Clinical audits are vital at a trust level for identifying gaps in these pathways and creating opportunities to implement positive change. For this project, a retrospective review was carried out on patients who underwent an emergency subtotal colectomy following admission with acute severe ulcerative colitis. Surgical patients were identified via a histopathology database and elective surgeries excluded. Key points throughout each admission were audited against national standards outlined in IBD UK and the BMJ (Lamb et al, 2019). This project specifically collected data on initial investigations (stool cultures and sigmoidoscopy), medical management (steroids and biologics) and surgical intervention (first contact with surgeons and timeframe until surgery). This audit primarily identified inconsistencies in organising investigations: 37.5% of patients did not have stool cultures recorded, and sigmoidoscopy was often delayed, occurring on average 5 days post-admission. Following the results of this audit, implementations have been suggested to create a more standardised approach for initial investigations of acute flares of ulcerative colitis. Guidelines have been made more accessible, alongside informative resources explaining why these investigations are necessary. Finally, while all patients ultimately underwent surgery within an acceptable timeframe, further education has been proposed to develop a clear pathway for appropriate surgical review. We hope that easy visualisation of the IBD treatment pathway can remind clinicians when to re-assess and escalate treatment accordingly.

DOI: 10.1111/codi.70177

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A Systematic Review of Long-Term Use of Proton Pump Inhibitors (PPIs) in Older Adults on Polypharmacy: Do PPIs Deplete Nutrients? (2025)

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Type of publication:

Systematic Review

Author(s):

Shahid, Muhammad Salman; Ahmed, Nouman; Kamal, Zeeshan; Nathaniel, Laibah; Singla, Bhavna; Singla, Shivam; Kumawat, Sunita; Batool, Munaza; *Ekomwereren, Osatohanmwen; Anika, Nabila N; Sahil, Muhammad.

Citation:

Cureus. 17(8):e90888, 2025 Aug.

Abstract:

Proton pump inhibitors (PPIs) are widely prescribed in older adults, often beyond recommended durations, raising concerns about nutrient depletion. This systematic review examined the impact of long-term PPI use (>=6 months) on micronutrient status in older adults receiving polypharmacy. A comprehensive search of PubMed, Scopus, Web of Science, and Cochrane Central Register of Controlled Trials (CENTRAL) identified five eligible studies, including 693 participants. Results showed a 12-18% reduction in serum vitamin B12 over 12 months of PPI use. Calcium and parathyroid hormone levels declined significantly in a 12-month cohort, while bone turnover markers increased despite stable bone mineral density. Findings for magnesium were inconsistent, with results ranging from no change after 12 months to pharmacokinetic alterations without systemic depletion. Overall, the evidence consistently supports an association between prolonged PPI therapy and reductions in vitamin B12 and calcium, with conflicting results for magnesium. These deficiencies may contribute to cognitive decline, bone fragility, and increased fall risk in older adults. Routine nutritional monitoring, targeted supplementation, and deprescribing where appropriate should be considered to mitigate these risks, while further large-scale trials are needed in frail geriatric populations.

DOI: 10.7759/cureus.90888

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Is AI the Game-Changer for Polyp Detection in Colon Capsule Endoscopy? Insights from the CESCAIL Study (2025)

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Type of publication:

Conference abstract

Author(s):

Lei I.I.; Parisi I.; Bhandare A.; Perez F.P.; Lee T.; Shehkar C.; McStay M.; Anderson S.; Watson A.; Conlin A.; Badreldin R.; Malik K.; Jacob J.; Dixon A.; *Butterworth J.; Parson N.; Koulaouzidis A.; Robertson A.; Treceno P.; Arasaradnam R.

Citation:

Gut. Conference: BSG Annual Meeting, BSG LIVE 2025. Glasgow United Kingdom. 74(Supplement 1) (pp A9-A10), 2025. Date of Publication: 01 Jun 2025.

Abstract:

Background Colon Capsule Endoscopy (CCE) provides a noninvasive alternative to colonoscopy for evaluating the lower gastrointestinal (LGI) tract. However, its widespread use has been limited by prolonged reading times and variability in diagnostic accuracy, often affected by factors such as bowel preparation quality and completion rates. In recent years, artificial intelligence (AI) has demonstrated potential in overcoming these limitations, particularly in small bowel CE, by enabling clinicians to achieve high diagnostic accuracy with significantly reduced reading times. The CESCAIL multi-centre study aims to evaluate a Computer-Aided Detection (CADe) system (AiSPEEDTM) to enhance polyp detection efficiency in CCE. Objective The primary aim is to assess AI-assisted CCE readings' diagnostic accuracy and non-inferiority in detecting polypoid lesions compared to standard readings using a per-patient analysis. The secondary objective focuses on mean reading time to evaluate the efficiency of each approach. Methods Patients aged 18 years or older, referred under urgent cancer or post-polypectomy surveillance pathway to one of the 14 CESCAIL participating centres across the UK, were prospectively enrolled in the study. Participants underwent CCE examinations, which were analysed using the AiSPEEDTM system, a convolutional neural network designed for automated polyp detection. Clinicians conducted initial manual readings, followed by AI-assisted readings, which involved an AI-automated first read, a review and annotation by a pre-reader, and a clinician assessment of selected images to create a report. Results Between February 2022 and September 2024, 673 patients were included in the final analysis. The overall completion rate was 77.1%, with adequate bowel preparation achieved in 78.1% of the standard pathway and 74.9% of the AI-assisted pathway (McNemar p=0.1). In the standard pathway, 403 patients (59.9%) required further investigation, including 243 (36.1%) colonoscopies and 138 (20.5%) flexible sigmoidoscopies. In the per-patient analysis, the diagnostic yield for polyp detection leading to a follow-up colonoscopy was 71.9% (484/673) for AI-assisted reading and 63.6% (428/ 673) for standard reading, confirming non-inferiority (p<0.0001). The diagnostic accuracy was 0.96 (95% CI: 0.95-0.98) for AI-assisted reading and 0.91 (95% CI: 0.89- 0.93) for standard reading (McNemar p<0.0001). The mean clinician reading time per video was 8.7 (SD=11.3) minutes for AI-assisted reading, compared to 47.3 (SD=24) minutes for standard reading, with a 5-fold reduction. Conclusion AI-assisted reading using AiSPEEDTM demonstrated significantly higher detection yield with improved diagnostic accuracy coupled with reduced reading time for polyp detection in CCE compared to standard clinician readings. These findings emphasise AI's potential to enhance efficiency and scalability in CCE, supporting its broader adoption for LGI investigations in clinical practice.

DOI: 10.1136/gutjnl-2025-BSG.14

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Decoding the Strength of AI-Assisted Reading in Colon Capsule Endoscopy: Factors Influencing Accuracy in Polyp Detection; CESCAIL Study's Interim Result (2025)

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Type of publication:

Oral presentation

Author(s):

Lei I.I.; Parisi I.; Bhandare A.; Perez F.P.; Lee T.; Shekhar C.; McStay M.; Anderson S.; Watson A.; Conlin A.; Badreldin R.; Malik K.; Jacob J.; Dixon A.; *Butterworth J.; Parsons N.; Robertson A.; Koulaouzidis A.; Arasaradnam R.

Citation:

Gut. Conference: BSG Annual Meeting, BSG LIVE 2025. Glasgow United Kingdom. 74(Supplement 1) (pp A48-A49), 2025. Date of Publication: 01 Jun 2025.

Abstract:

Background Artificial Intelligence (AI) assisted reading in Small Bowel Capsule Endoscopy (SBCE) has recently been shown to achieve comparable and potentially superior accuracy compared to standard clinician reading. In Colon Capsule Endoscopy (CCE), AI algorithms have also demonstrated some promising results.1 However, the extent of AI-assisted reading's advantage remains unclear, particularly regarding its performance across different polyp sizes, morphologies, locations, and non-polyp-related factors. Understanding this is essential for optimising AI performance and clinical integration. Objective(s) This CESCAIL sub-analysis evaluates the per-polyp diagnostic accuracy of AI-assisted versus standard clinician reads (pathways) and identifies key factors influencing AIassisted accuracy using AiSPEEDTM. Methods A total of 1,803 polyps from 673 patients were analysed at the per-polyp level to assess diagnostic accuracy in terms of sensitivity and PPV, as well as the factors influencing the improved accuracy of AI-assisted readings compared to standard clinician readings. Factors examined included polyp size, morphology, location, patient demographics (age and sex), bowel preparation quality, capsule excretion rates, comorbidities, medications, reading time, and video duration. Statistical methods included, McNemar's test, superiority and noninferiority analyses, Generalised Estimating Equations, and generalized linear models with interaction terms, were employed to identify key predictors of enhanced diagnostic accuracy in both AI-assisted and standard readings. Results AI-assisted reading demonstrated significantly higher sensitivity with clear superiority for smaller polyps (<10 mm) compared to larger ones (>=10 mm) (OR 2.27 vs 0.88, p<0.0001). While there was no observed difference in diagnostic accuracy between pathways for polyps >=10 mm, noninferiority was established. AI accuracy remained consistent between polyps measuring 6-9 mm and <=5 mm (p=0.64). The most notable improvement was observed with hyperplastic polyps (OR 5.4, p<0.0001), particularly in the rectal region (OR 5.7, p<0.0001). No significant differences were identified for pedunculated, subpedunculated, LST, or SSL polyps. Furthermore, AI-assisted readings were significantly more accurate for left-sided polyps compared to right-sided ones (OR 2.36 vs 1.66, p<0.0001), although AI-assisted reads outperformed standard reads in both locations. Conclusion This study highlights the strengths of AI-assisted reading, particularly for detecting smaller adenomas and hyperplastic polyps, with notable accuracy in the left colon. Next-generation AI should focus on distinguishing significant from diminutive polyps and enhancing polyp characterisation, especially for right-sided lesions.

DOI: 10.1136/gutjnl-2025-BSG.72

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From Capsule to Scope: Predicting Colon Capsule Endoscopy Conversion to Optical Endoscopy - Insights from the CESCAIL Study (2025)

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Type of publication:

Poster presentation

Author(s):

Lei I.I.; Parisi I.; Bhandare A.; Perez F.; Lee T.; Shehkar C.; McStay M.; Anderson S.; Watson A.; Conlin A.; Badreldin R.; Malik K.; Jacob J.; Dixon A.; *Butterworth J.; Parsons N.; Koulaouzidis A.; Arasaradnam R.

Citation:

Gut. Conference: BSG Annual Meeting, BSG LIVE 2025. Glasgow United Kingdom. 74(Supplement 1) (pp A269-A270), 2025. Date of Publication: 01 Jun 2025.

Abstract:

Background Colon capsule endoscopy (CCE) has emerged as a non-invasive alternative to traditional colonoscopy for low-risk patients. However, its adoption is limited by low completion rates and the inability to perform biopsies or polyp removal, often resulting in CCE-to-conventional colonoscopy conversion (CCC). This conversion carries financial implications, contributes to patient dissatisfaction due to repeated procedures, and imposes a potential environmental burden from increased hospital visits. Objective(s) The aim is to identify the factors that predict issues with bowel cleansing, capsule excretion rates, pathology detection, and the need for CCC. Methods In this prospective analysis of the CESCAIL study (November 2021-June 2024), 603 patients who underwent CCE were included. Predictive factors-including patient demographics, comorbidities, medications, and laboratory results-were analysed across symptomatic and surveillance groups. Statistical techniques such as LASSO regression, linear regression, and logistic regression were applied. Results Among the 603 participants analyzed, elevated f-Hb levels (OR=1.48, 95% CI: 1.18-1.86, p=0.0002) and smoking (OR=1.44, 95% CI: 1.01-2.11, p=0.047) were significantly associated with CCE-to-conventional colonoscopy conversion (CCC). However, an AUC of 0.62 after adjusting for confounders suggests f-Hb is a weak predictor of CCC. Diabetes was linked to poor bowel preparation (OR=0.40, 95% CI: 0.18-0.87, p=0.022). Alcohol use (p=0.004), smoking (p=0.003), and psychological conditions (p=0.001) were significantly associated with an increased polyp count, while haemoglobin levels (p=0.046) showed a marginal negative association with polyp numbers. Additionally, antidepressants (p=0.003) were associated with larger polyps, whereas betablockers (p=0.001) were linked to smaller polyps. Conclusion Non-smokers with lower f-Hb levels are less likely to require CCC. Effective patient selection criteria are essential for minimising conversion rates and improving the efficiency of CCE services. These findings highlight the need for validation across diver

DOI: 10.1136/gutjnl-2025-BSG.428

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Enhancing Sustainability in Endoscopically Assisted Naso-Jejunal Tube Insertion - A Novel Approach (2025)

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Type of publication:

Poster presentation

Author(s):

Bhargava K.; Bhargava C.; Dimitriadis S.; Sawyer M.; *Desai K.; Shekhar C.

Citation:

Gut. Conference: BSG Annual Meeting, BSG LIVE 2025. Glasgow United Kingdom. 74(Supplement 1) (pp A287), 2025. Date of Publication: 01 Jun 2025.

Abstract:

Introduction Due to the high caseload and heavy reliance on plastic predominant equipment in endoscopy, single use consumables remain a significant contributor to endoscopy related CO2 emissions (CO2e). Naso-jejunal tube (NJT) is a flexible tube that enables post-pyloric feeding. Conventionally, NJT insertion is performed endoscopically utilising consumables (e. g. single use laryngoscopes). We aimed to calculate and compare the CO2e of the standard NJT insertion process (SNIP) and a proposed innovative NJT insertion process (INIP). Method We dismantled each consumable used in the SNIP and INIP and calculated their associated CO2e by multiplying their weights by pre-established greenhouse gas emission factors published by the government of the United Kingdom. We further contacted relevant manufacturers to include emissions related to packaging, travel and transport, where possible. Results The SNIP emitted 1.327kg CO2e, while the INIP emitted 0.113kg CO2e – yielding an 11-times lower carbon footprint. The most significant contributor to SNIP emissions was the utilisation of the single use laryngoscope (0.838kg CO2e). In contrast, the INIP enabled NJT insertion, independent of conventional single-use instrumentation. Conclusion Implementing the INIP approach for NJT insertions for hospital and community-based patients would provide a sustainable alternative to existing procedural standards. Based on current data, utilising the INIP as standard practice would reduce 5827.2kg of NJT associated CO2e per year, in the UK. Further epidemiological research on populations receiving enteral feeding is required to more accurately evaluate the INIP's environmental impact.

DOI: 10.1136/gutjnl-2025-BSG.454

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Evaluating the Referral Pathway for Colonoscopy in a District General Hospital (2025)

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Type of publication:

Conference abstract

Author(s):

*Lakshmipathy G.R.; *Zaman H.; *Ball W.; *Smith M.

Citation:

British Journal of Surgery. Conference: 49th ASiT Annual Surgical Conference. Belfast United Kingdom. 112(Supplement 10) (pp x109-x110), 2025. Date of Publication: 01 Jun 2025.

Abstract:

Objectives: We aim to evaluate: Method, urgency and appropriateness of colonoscopy referrals. Colonoscopies repeated within two years. Reasoning behind procedure modification or cancellation on the day Method: Data was collected between 5/1/24 and 28/2/24 using questionnaires completed by endoscopists. 112 colonoscopies in 51% (57) males and 49% (55) females were included. Result(s): The most common to least common referral sources are: Colorectal CNS telephone clinic 29(26%), consultant surgeon face-to-face Clinic 28(25%), triage system 14(12.5%), consultant surgeon telephone clinic 13(11.6%), others 13(11.6%), gastroenterology consultant face-to-face clinic 11(9.8%) and gastroenterologist telephone clinic 1(0.8%). Majority of referrals were two-week wait or urgent 97 (86.5%). Endoscopists were 18-week team 70(62.5%) followed by trust-employed consultant surgeons 26(23%). Four patients had repeat colonoscopies in last two years. 9(8%) scopes were modified or cancelled. Conclusion(s): Except for one scope, repeat scopes within two years had valid indications. Majority of the modified or cancelled scopes originated from telephone consultation referrals. Reasons for cancellation on the day included lack of fitness for scopy, ineffective bowel preparation, patient factor like uncontrolled atrial fibrillation on the day and no indication for colonoscopy. Modifications included switching from requests for flexible sigmoidoscopy to colonoscopy; colonoscopy to CTVC and vice versa. In light of this study, we aim to provide face-to-face appointments for patients referred through the urgent suspected cancer pathway. We plan to expand this study to evaluate the popularity of CTVC use as an alternative modality when colonoscopy is not possible.

DOI: 10.1093/bjs/znaf128.znaf128.438

Survey of the current experience of colonoscopy training for colorectal surgical trainees in the UK (2025)

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Type of publication:

Journal article

Author(s):

Siggens K.; Williams S.; Yiu A.; El Sayed C.; Fletcher J.; Mills S.; Yeadon K.; Reza L.; Rabie M.; Drami I.; Green S.; Tamanna R.; Couderq D.; Javanmard-Emamghissi H.; Argyriou O.; Okocha M.; Khasawneh F.; Kat-Zsummercorn A.; Shakir T.; Anya L.; Bramwell C.; Haji A.; Johnston R.; Joshi H.; Oliphant R.; Piramanayagam B.

Citation:

Frontline Gastroenterology. (no pagination), 2025. Date of Publication: 2025.[epub ahead of print]

Abstract:

Introduction: The primary aim was to understand the current experience of colonoscopy training among general surgical trainees with a subspeciality interest in colorectal surgery. Method(s): An electronic survey was developed and disseminated by members of the Dukes' Club (colorectal trainees network) and Association of Coloproctologists of Great Britain and Ireland colonoscopy subcommittee between February and April 2024 to assess key themes identified through formal and informal feedback from colorectal trainees of endoscopy training experience. Result(s): The survey was completed by 196 participants. This included 13.3% from core trainee (CT) 2-speciality trainee (ST) 4, 28.6% from ST5-ST6, 36.5% from ST7-ST8, 13.3% from post-certificate for completion of training fellows, senior clinical fellows and speciality and specialist (SAS) doctors and 8.7% from early years consultants. The median number of colonoscopies performed by respondents was 121.6 (range 0-8000). Only 33.7% (66/196) reported having one dedicated training list per week, and 56.6% (111/196) were not allocated to any regular training list. The barriers to training were service provision (71.9%), lack of dedicated training lists (69.9%) and access to training lists due to other trainees or healthcare professionals (42.3%). Only 25% of respondents had experience of immersion training, but they consistently reported high numbers of colonoscopy during these periods, with 40% achieving more than 30 colonoscopies. Conclusion(s): There is an urgent need to improve access to colonoscopy training. Regular endoscopy training lists and funding of academies and immersion training centrally are likely to greatly improve the experience of colonoscopy training. Senior colorectal trainees should be prioritised to avoid delay in the completion of training.

DOI: 10.1136/flgastro-2025-103106

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