Subscribe to RSS

DOI: 10.1055/a-2739-4080
Environmental footprint of gastrointestinal endoscopy services: a systematic review
Authors
Funded internally by Erasmus University Medical Center Convergence Sustainable Health Program.

Abstract
Background
Gastrointestinal (GI) endoscopy is a significant contributor to health care-related climate change due to high procedure volumes, intensive decontamination processes, and reliance on single-use products. This systematic review aimed to synthesize the current evidence on the environmental impact of GI endoscopy.
Methods
MEDLINE, Embase, and Web of Science were systematically searched up to May 2025 for studies assessing the environmental impact of GI endoscopy. Two reviewers independently performed study selection, data extraction, and quality assessment. The PRISMA guidelines were followed.
Results
28 studies were included. Most studies assessed carbon emissions; only four studies (14%) examined environmental impacts beyond greenhouse gas emissions. The largest contributors to emissions were patient travel, energy use, and procedure-related products, whereas waste had limited impact. Overall, scope 3 emissions accounted for the majority of total emissions, though reporting across different emission scopes was inconsistent. In line with heterogeneity in methodology, per-procedure emissions ranged from 5.4 to 73.2 kg carbon dioxide equivalent. Overall, 21 studies (75%) were judged to have a high risk of bias.
Conclusion
Current evidence on the environmental impact of GI endoscopy services is fragmented, methodologically inconsistent, and often limited in coverage. Emissions were dominated by patient travel, energy use, and procedure-related products. Broader and more standardized environmental assessments are needed to guide the transition to low-carbon, sustainable GI endoscopy.
Publication History
Received: 02 August 2025
Accepted after revision: 29 October 2025
Accepted Manuscript online:
05 November 2025
Article published online:
19 December 2025
© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).
Georg Thieme Verlag KG
Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany
-
References
- 1 Karliner J, Slotterback S, Boyd R. et al. Health care’s climate footprint: the health sector contribution and opportunities for action. Eur J Public Health 2020; 30
- 2 Baddeley R, Aabakken L, Veitch A. et al. Green endoscopy: counting the carbon cost of our practice. Gastroenterology 2022; 162: 1556-1560
- 3 Siau K, Hayee BH, Gayam S. Endoscopy’s current carbon footprint. Tech Innov Gastrointest Endosc 2021; 23: 344-352
- 4 Booth A. Carbon footprint modelling of national health systems: opportunities, challenges and recommendations. Int J Health Plann Manage 2022; 37: 1885-1893
- 5 Wiedmann T, Minx J. A definition of ‘carbon footprint’. Ecological Economics Research Trends 2008; 1: 1-11
- 6 Bhatia P, Cummis C, Draucker L. et al. Greenhouse gas protocol product life cycle accounting and reporting standard. 2011 Accessed February 20, 2025 at: https://ghgprotocol.org/calculation-tools-and-guidance
- 7 Salas RN, Maibach E, Pencheon D. et al. A pathway to net zero emissions for healthcare. BMJ 2020; 371: m3785
- 8 Finkbeiner M, Inaba A, Tan R. et al. The new international standards for life cycle assessment: ISO 14040 and ISO 14044. Int J Life Cycle Assess 2006; 11: 80-85
- 9 Sinkevicius V. Commission recommendation on the use of the Environmental Footprint methods to measure and communicate the life cycle environmental performance of products and organisations. C(2021) 9332 final. – Annex I. Chapter 3.2.3 Environmental footprint impact categories. Official Journal of the European Union 2021; 64: 471
- 10 Rodríguez De Santiago E, Dinis-Ribeiro M, Pohl H. et al. Reducing the environmental footprint of gastrointestinal endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastroenterology and Endoscopy Nurses and Associates (ESGENA) Position Statement. Endoscopy 2022; 54: 797-826
- 11 Maida M, Vitello A, Shahini E. et al. Green endoscopy, one step toward a sustainable future: literature review. Endosc Int Open 2024; 12: E968-E980
- 12 Park SB, Cha JM. Gastrointestinal endoscopy’s carbon footprint. Clin Endosc 2023; 56: 263-267
- 13 Perisetti A, Desai M, Bourke MJ. et al. Production and possible reduction of greenhouse gases produced during GI endoscopy activity: a systematic review of available literature. Gut 2023; 72: 493-500
- 14 Pohl H, Baddeley R, Hayee B. Carbon footprint of gastroenterology practice. Gut 2023; 72: 2210-2213
- 15 Sonaiya S, Marino R, Agollari K. et al. Environmentally sustainable gastroenterology practice: review of current state and future goals. Dig Endosc 2024; 36: 406-420
- 16 Page MJ, McKenzie JE, Bossuyt PM. et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ 2021; 372: n7
- 17 Matuštík J, Kočí V. What is a footprint? A conceptual analysis of environmental footprint indicators. J Clean Prod 2021; 285: 124833
- 18 Cunha Neves JA, Baddeley R, Pohl H. et al. Endoscopic Sustainability PrimAry Reporting Essentials (E-SPARE): European Society of Gastrointestinal Endoscopy (ESGE) Position Statement. Endoscopy 2025; 57: 674-688
- 19 Konno K, Livoreil B, Pullin AS. Collaboration for Environmental Evidence critical appraisal tool version 0.3. 2021. Accessed March 11, 2025 at: https://environmentalevidence.org/cee-critical-appraisal-tool/
- 20 Drew J, Christie SD, Tyedmers P. et al. Operating in a climate crisis: a state-of-the-science review of life cycle assessment within surgical and anesthetic care. Environ health Perspect 2021; 129: 076001
- 21 Kouwenberg LHJA, Cohen ES, Hehenkamp WJK. et al. The carbon footprint of hospital services and care pathways: a state-of-the-science review. Environ Health Perspect 2024; 132: 126002
- 22 Weidema BP. Guidelines for critical review of product LCA. Aalborg: 2–0 LCA 1997. Accessed March 11, 2025 at: https://2–0-lca.com/publications/show/guidelines-for-critical-review-of-life-cycle-assessments/
- 23 Cunha Neves JA, Roseira J, Queirós P. et al. Targeted intervention to achieve waste reduction in gastrointestinal endoscopy. Gut 2023; 72: 306-313
- 24 de Jong D, Volkers A, de Ridder E. et al. Steps toward a greener endoscopy unit. Clin Gastroenterol Hepatol 2023; 21: 2723-2726.e2722
- 25 Desai M, Campbell C, Perisetti A. et al. The environmental impact of gastrointestinal procedures: a prospective study of waste generation, energy consumption, and auditing in an endoscopy unit. Gastroenterology 2024; 166: 496-502.e493
- 26 Elli L, La Mura S, Rimondi A. et al. The carbon cost of inappropriate endoscopy. Gastrointest Endosc 2024; 99: 137-145.e133
- 27 Fichtl A, Tacheva V, Sturm N. et al. Impact of power consumption and power saving for GI endoscopy (power on study) on reducing CO2 emissions. Gut 2024; 73: 892-896
- 28 Gayam S. Environmental impact of endoscopy: “scope” of the problem. Am J Gastroenterol 2020; 115: 1931-1932
- 29 Gordon IO, Sherman JD, Leapman M. et al. Life cycle greenhouse gas emissions of gastrointestinal biopsies in a surgical pathology laboratory. Am J Clin Pathol 2021; 156: 540-549
- 30 Grau R, Cottinet PJ, Le MQ. et al. Endoscopic en bloc vs piecemeal resection of large colonic adenomas: carbon footprint post hoc analysis of a randomized trial. Clin Gastroenterol Hepatol 2025; 23: 1546-1555.e2
- 31 Henniger D, Lux T, Windsheimer M. et al. Reducing scope 3 carbon emissions in gastrointestinal endoscopy: results of the prospective study of the ‘Green Endoscopy Project Würzburg’. Gut 2023; 73: 442-447
- 32 Henniger D, Windsheimer M, Beck H. et al. Assessment of the yearly carbon emission of a gastrointestinal endoscopy unit. Gut 2023; 72: 1816-1818
- 33 Jalayeri Nia G, Conway C, Ward F. et al. Exploring the feasibility of home-delivered capsule endoscopy with 5G support: innovations and carbon footprint insights. BMJ Open Gastroenterol 2024; 11: e001500
- 34 Jung DH, Lee HJ, Jeon TJ. et al. Measuring medical waste from gastrointestinal endoscopies in South Korea to estimate their carbon footprint. Gut Liver 2025; 19: 43-49
- 35 Klose MA, Becker A, Blank V. et al. Role of patient and staff mobility in scope 3 emissions in GI endoscopy. Gut 2024; 73: 1232-1234
- 36 Kojima S, Kato M, Wang DH. et al. Implementation of HACCP in the risk management of medical waste generated from endoscopy. J Risk Res 2008; 11: 925-936
- 37 Lacroute J, Marcantoni J, Petitot S. et al. The carbon footprint of ambulatory gastrointestinal endoscopy. Endoscopy 2023; 55: 918-926
- 38 Lämmer P, Oomkens D, Stobernack T. et al. Environmental footprint of a colonoscopy procedure: life cycle assessment. Endosc Int Open 2025; 13: a25706599
- 39 Le NNT, Hernandez LV, Vakil N. et al. Environmental and health outcomes of single-use versus reusable duodenoscopes. Gastrointest Endosc 2022; 96: 1002-1008
- 40 López-Muñoz P, Martín-Cabezuelo R, Lorenzo-Zúñiga V. et al. Environmental footprint and material composition comparison of single-use and reusable duodenoscopes. Endoscopy 2025; 57: 116-123
- 41 López-Muñoz P, Martín-Cabezuelo R, Lorenzo-Zúñiga V. et al. Life cycle assessment of routinely used endoscopic instruments and simple intervention to reduce our environmental impact. Gut 2023; 72: 1692-1697
- 42 Lotter JA, Zhao KR, Rouse M. et al. “Scoping” sustainability: rethinking sterile water use in colonoscopies. ANZ J Surg 2025; 95: 632-634
- 43 Martin-Cabezuelo R, Vilarino-Feltrer G, Campillo-Fernandez AJ. et al. Materials science toolkit for carbon footprint assessment: a case study for endoscopic accessories of common use. ACS Environ Au 2024; 4: 42-50
- 44 Namburar S, von Renteln D, Damianos J. et al. Estimating the environmental impact of disposable endoscopic equipment and endoscopes. Gut 2022; 71: 1326-1331
- 45 Pioche M, Cunha Neves JA, Pohl H. et al. Environmental impact of small-bowel capsule endoscopy. Endoscopy 2024; 56: 737-746
- 46 Pioche M, Pohl H, Cunha Neves JA. et al. Environmental impact of single-use versus reusable gastroscopes. Gut 2024; 73: 1816-1822
- 47 Ribeiro T, Morais R, Monteiro C. et al. Estimating the environmental impact of endoscopic activity at a tertiary center: a pilot study. Eur J Gastroenterol Hepatol 2024; 36: 39-44
- 48 Rughwani H, Kalapala R, Katrevula A. et al. Carbon footprinting and environmental impact of gastrointestinal endoscopy procedures at a tertiary care institution: a prospective multi-dimensional assessment. Gut 2025; 74: 926-934
- 49 Vaccari M, Tudor T, Perteghella A. Costs associated with the management of waste from healthcare facilities: an analysis at national and site level. Waste Manag Res 2018; 36: 39-47
- 50 Zullo A, Chiovelli F, Esposito E. et al. Can gastric juice analysis with EndoFaster R reduce the environmental impact of upper endoscopy?. Healthcare (Basel) 2023; 11: 3186
- 51 Nkurunziza JMV, Udahemuka JC, Dusenge JB. et al. Overview of trending medical technologies. Global Clinical Engineering Journal 2022; 4: 16-46
- 52 United States Environmental Protection Agency. Greenhouse gas equivalencies calculator. 2024 Accessed April 25, 2025 at: https://www.epa.gov/energy/greenhouse-gas-equivalencies-calculator
- 53 Eussen MMM, Moossdorff M, Wellens LM. et al. Beyond single-use: a systematic review of environmental, economic, and clinical impacts of endoscopic surgical instrumentation. Int J Surg 2024; 110: 8136-8150
- 54 Nabi Z, Tang RSY, Sundaram S. et al. Single-use accessories and endoscopes in the era of sustainability and climate change – a balancing act. J Gastroenterol Hepatol 2024; 39: 7-17
- 55 Gaetani M, Uleryk E, Halgren C. et al. The carbon footprint of critical care: a systematic review. Intensive Care Med 2024; 50: 731-745
- 56 Rizan C, Steinbach I, Nicholson R. et al. The carbon footprint of surgical operations: a systematic review. Ann Surg 2020; 272: 986-995
