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Upper gastrointestinal tract capsule endoscopy using a nurse-led protocol: First reported experience

World Journal of Gastroenterology 2018年第26期24卷 2893-2901页

作者： Hey-Long Ching Ailish Healy victoria thurston Melissa F Hale Reena Sidhu Mark E McAlindon Academic Department of Gastroenterology and Hepatology Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Trust

AIM To test the feasibility and performance of a novel upper gastrointestinal(GI) capsule endoscope using a nurse-led protocol. METHODS We conducted a prospective cohort analysis of patients who declined gastroscopy(oesophagogastroduodenoscopy, OGD) but who consented to upper GI capsule endoscopy. Patients swallowed the upper GI capsule following ingestion of 1 liter of water(containing simethicone). A series of positional changes were used to exploit the effects of water flow and move the upper GI capsule from one gravity-dependent area to another using a nurse-led protocol. Capsule transit time, video reading time, mucosal visualisation, pathology detection and patient tolerance was *** Fifty patients were included in the study. The mean capsule transit times in the oesophagus and stomach were 28 s and 68 min respectively. Visualisation of the following major anatomical landmarks was achieved(graded 1-5: Poor to excellent): Oesophagus, 4.8(± 0.5); gastro-oesophageal junction(GOJ), 4.8(± 0.8); cardia, 4.8(± 0.8); fundus, 3.8(± 1.2); body, 4.5(± 1); antrum, 4.5(± 1); pylorus, 4.7(± 0.8); duodenal bulb, 4.7(± 0.7); second part of the duodenum(D2), 4.7(± 1). The upper GI capsule reached D2 in 64% of patients. The mean video reading time was 48 min with standard playback mode and 20 min using Quickview(P = 0.0001). No pathology was missed using Quickview. Procedural tolerance was excellent. No complications were seen with the upper GI capsule. CONCLUSION The upper GI capsule achieved excellent views of the upper GI tract. Future studies should compare the diagnostic accuracy between upper GI capsule and OGD.

关键词： Capsule endoscopy Upper gastrointestinal Gastroscopy Oesophagus Stomach

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Longitudinal monitoring for the emergence of epidermal growth factor C797S resistance mutations in non-small cell lung cancer using blood-based droplet digital PCR

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Cancer Drug Resistance 2019年第3期2卷 912-916页

作者： Mark Bowling Hyder Arastu victoria Edwards Leisa Jackson Scott thurston Jordan Reese Hestia Mellert Gary Pestano Paul Walker East Carolina University Mail Stop 628Internal Medicine-Hematology/OncologyGreenvilleNC 27834USA Biodesix Inc.2970 Wilderness PlaceBoulderCO 80301USA.

Validation of assays for the C797S mutation as a biomarker for osimertinib resistance is promising in guiding treatment decision-making for multidrug resistant non-small cell lung cancer. A newly developed droplet digital PCR (ddPCR) assay was used to retrospectively evaluate the emergence of the C797S mutation in six remnant plasma samples in this case report. It was found that the detected emergence of C797S clearly correlated with clinical signs of treatment resistance. Had these data been available to aid treatment selection in real time, there would have been hope for recaptured disease response and control instead of treatment cessation. The results of this study show that highly sensitive ddPCR methods can be used for the monitoring of emergent epidermal growth factor somatic variant mutations in circulation.

关键词： Epidermal growth factor non-small cell lung cancer C797S drug resistance

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