COVID-19: Framework for the Resumption of Endoscopic Activities From the Canadian Association of Gastroenterology

As the coronavirus disease 2019 (COVID-19) pandemic endures, the ensuing volume of postponed nonurgent endoscopic procedures is creating a new challenge. The accumulation of patients on waiting lists risks causing new problems related to delays in diagnosis or treatment from reduced endoscopic activities. We must balance our eagerness to resume endoscopic activities with the knowledge that increased patient contact during the receding phase of the pandemic could pose a risk of resurgence of the disease over the next few months. The threat of second waves requires us to proceed with extreme care. This framework aims to provide guidance to endoscopists and endoscopy unit administrators resuming elective endoscopic activity during the postpeak phase of the COVID-19 pandemic. The World Health Organization suggests the application of physical distancing measures and movement restrictions for at least 2–3 months based on the experience of countries first affected by COVID-19 (1). Decisions on when and how to resume nonurgent endoscopic activities must be based on multiple factors, some internal and some external to the endoscopy unit’s responsibilities. It is proposed that each incremental phase should last a minimum of 2 weeks to allow sufficient time to measure the effect of change and reassess risk. Planning for increases in endoscopic volumes should be a concerted effort with realistic objectives. The following is a nonexhaustive list of factors that need to be taken into account in order to appropriately reintroduce elective endoscopic activity Figure 1. Examples of scenarios: a) In an endoscopy unit with limited availability of PPE but access to timely COVID-19 testing, systematically testing each patient before endoscopy will identify lower-risk patients, mitigate contact risks, help select appropriate PPE and increase the number of nonurgent endoscopies. b) In a unit well supplied with PPE but with limited access to COVID-19 testing, a systematic pre-endoscopic screening process and structured patient trajectory to adhere to physical distancing guidelines will facilitate the reintroduction of some nonurgent procedures. c) In a unit with limited availability of PPE and limited access to COVID-19 testing, the unit will need to restrict endoscopic access to only the highest priority indications (priority 1 and 2) and a few selected priority 3 cases until more PPE becomes available. A systematic pre-endoscopic screening process will be required to identify patients who should undergo testing for COVID-19 prior to endoscopy. Based on a literature review of available recommendations from major endoscopy-oriented scientific organizations and available evidence related to outcomes associated with delaying endoscopic procedures (2–15), the Canadian Association of Gastroenterology (CAG) COVID working group suggests a hierarchical set of priorities for various endoscopic procedures (Table 1). Prioritization of endoscopic procedures according to the indication Every decision to perform endoscopy should take into consideration: (a) risks to the patient and endoscopy staff; (b) the potential to change management and/or to alter the prognosis of the patient and (c) health system capacity. Severity of symptoms/laboratory or imaging findings or time spent on the waiting list may change the priority of a given patient that may need to be reassessed on a case-by-case basis. All procedures that do not fit the definition of priority 1–3 should be considered priority 4. A list of patients and their conditions should be updated regularly to reassess the priority of procedures. *For oncology cases, priority should be based on access to subsequent treatments and expected time to progression. CBD; common bile duct; ERCP, endoscopic retrograde cholangiopancreatography; EUS, endoscopic ultrasound; FIT, fecal immunochemical test; GI, gastrointestinal; IBD, inflammatory bowel disease; MRCP, magnetic resonance cholangiopancreatography; NG, nasogastric; NJ, nasojejunal; PEG, percutaneous endoscopic gastrostomy; PEJ, percutaneous endoscopic jejunostomy; PUD, peptic ulcer disease. Prioritization of endoscopic procedures according to the indication Every decision to perform endoscopy should take into consideration: (a) risks to the patient and endoscopy staff; (b) the potential to change management and/or to alter the prognosis of the patient and (c) health system capacity. Severity of symptoms/laboratory or imaging findings or time spent on the waiting list may change the priority of a given patient that may need to be reassessed on a case-by-case basis. All procedures that do not fit the definition of priority 1–3 should be considered priority 4. A list of patients and their conditions should be updated regularly to reassess the priority of procedures. *For oncology cases, priority should be based on access to subsequent treatments and expected time to progression. CBD; common bile duct; ERCP, endoscopic retrograde cholangiopancreatography; EUS, endoscopic ultrasound; FIT, fecal immunochemical test; GI, gastrointestinal; IBD, inflammatory bowel disease; MRCP, magnetic resonance cholangiopancreatography; NG, nasogastric; NJ, nasojejunal; PEG, percutaneous endoscopic gastrostomy; PEJ, percutaneous endoscopic jejunostomy; PUD, peptic ulcer disease. Priority categories: Emergent/life-threatening conditions for which endoscopy must always be performed. Conditions that may cause early negative impact on patients’ health, quality of life or functional status. These endoscopic procedures will alter management and/or outcome and should be performed. Indications for which a delay of several weeks will not likely alter the quality of life or prognosis of the patient. Those procedures could be performed when the unit is up to date and can schedule activities beyond ongoing priority 1 and 2 procedures. Indications with no impact on prognosis or quality of life over many months or years. Should be deferred until the end of the pandemic or until the local epidemiological factors allow high throughput comparable to prepandemic activities. In conclusion, it is important to acknowledge that resumption of endoscopy services is not likely to be a linear process. Additional phases of reopening and reclosing of endoscopy units for nonurgent procedures may be necessary based on public health recommendations or on local resources. Thus, a stepwise, flexible and adaptative approach is needed. The CAG recognizes that endoscopy is performed within a wide range of contexts, with important differences that can have implications for operational logistics. It is hoped that this framework provides a useful starting point for endoscopy units planning to resume elective endoscopic activity during the postpeak phase(s) of the COVID-19 pandemic.

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