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Different perceptions of the burden of upper GI endoscopy: an empirical study in three patient groups.

ABSTRACT: BACKGROUND: Few studies have evaluated patients' perceived burden of cancer surveillance tests. Cancer screening and surveillance, however, require a large number of patients to undergo potentially burdensome tests with only some experiencing health gains from it. We investigated the determinants of patients' reported burden of upper gastrointestinal (GI) endoscopy by comparing data from three patient groups. PATIENTS AND METHODS: A total of 476 patients were included: 180 patients under regular surveillance for Barrett esophagus (BE), a premalignant disorder; 214 patients with non-specific upper GI symptoms (NS), and 82 patients recently diagnosed with upper GI cancer (CA). We assessed pain, discomfort and overall burden experienced during endoscopy, symptoms in the week afterwards and psychological distress over time (Hospital Anxiety and Depression scale and Impact of Event Scale). RESULTS: Two-thirds (66%) of patients reported discomfort and overall burden of upper GI endoscopy. Only 23% reported any pain. BE patients reported significantly less discomfort, pain and overall burden than the other patients: those with NS reported more discomfort, CA patients more pain, and both more overall burden. These differences could be statistically explained by the number of previous endoscopies and whether sedation was provided or not, but not by patient characteristics. CONCLUSION: The perception of upper GI endoscopy varies by patient group, due to potential adaptation after multiple endoscopies and aspects of the procedure.

SUBMITTER: Essink-Bot ML

PROVIDER: S-EPMC2039790 | biostudies-other | 2007 Oct

REPOSITORIES: biostudies-other

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Project description:Background and aimsAerosol-generating procedures have become an important healthcare issue during the coronavirus disease 2019 (COVID-19) pandemic because the severe acute respiratory syndrome coronavirus 2 virus can be transmitted through aerosols. We aimed to characterize aerosol and droplet generation in GI endoscopy, where there is little evidence.MethodsThis prospective observational study included 36 patients undergoing routine peroral gastroscopy (POG), 11 undergoing transnasal endoscopy (TNE), and 48 undergoing lower GI (LGI) endoscopy. Particle counters took measurements near the appropriate orifice (2 models were used with diameter ranges of .3-25 μm and 20-3000 μm). Quantitative analysis was performed by recording specific events and subtracting background particles.ResultsPOG produced 1.96 times the level of background particles (P < .001) and TNE produced 2.00 times (P < .001), but a direct comparison showed POG produced 2.00 times more particles than TNE. LGI procedures produced significant particle counts (P < .001) with 2.4 times greater production per procedure than POG but only .63 times production per minute. Events that were significant relative to the room background particle count were POG, with throat spray (150.0 times, P < .001), esophageal extubation (37.5 times, P < .001), and coughing or gagging (25.8 times, P < .01); TNE, with nasal spray (40.1 times, P < .001), nasal extubation (32.0 times, P < .01), and coughing or gagging (20.0, P < .01); and LGI procedures, with rectal intubation (9.9 times, P < .05), rectal extubation (27.2 times, P < .01), application of abdominal pressure (9.6 times, P < .05), and rectal insufflation or retroflexion (7.7 times, P < .01). These all produced particle counts larger than or comparable with volitional cough.ConclusionsGI endoscopy performed through the mouth, nose, or rectum generates significant quantities of aerosols and droplets. Because the infectivity of procedures is not established, we therefore suggest adequate personal protective equipment is used for all GI endoscopy where there is a high population prevalence of COVID-19. Avoiding throat and nasal spray would significantly reduce particles generated from upper GI procedures.

Project description:Cancers of the upper gastro-intestinal tract, including esophagus (gullet), stomach and small bowel, are amongst the deadliest malignancies. The main reason for their high mortality rate is that they are usually diagnosed late when curative treatments are no longer effective. However, these types of cancer generally arise from well-described pre-cancerous diseases, such as Barrett’s esophagus and gastric intestinal metaplasia. This provides an opportunity for clinicians to detect these pre-cancerous conditions early and offer adequate cure or clinical monitoring before they progress to cancer. A camera test (gastroscopy) is the gold-standard test to detect pre-cancerous diseases in these organs. There has been limited research to set the standards for performance of a gastroscopy, especially with regards to diagnosis of pre-cancerous conditions, which require knowledge and skills by the physician performing the test (endoscopist). Therefore, the hypothesis behind this study is that the aforementioned pre-cancerous diseases are understudied and often go undetected. This study aims to understand how often endoscopists should diagnose these pre-cancerous diseases on routine gastroscopy and help define the standards to measure performance. The investigators will assess the following rates: i. how often endoscopists diagnose these pre-cancerous lesions during endoscopy; ii. How often these conditions are diagnosed on biopsies taken according to a standardized protocol; iii. How often these condition should have been diagnosed by the endoscopists based on the review of pictures by expert endoscopists. The investigators will also compare the rates of correct diagnosis by endoscopists with different levels of experience and based on the times spent to complete the diagnostic test. Investigating these aspects will enhance the understanding of the medical community with regards to the diagnosis of these pre-cancerous lesions and set endoscopy standards to improve their early detection and treatment before they progress to cancer. This will translate to improved cancer prevention and benefit for patients.

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Different perceptions of the burden of upper GI endoscopy: an empirical study in three patient groups.

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