Year 2020 / Volume 112 / Number 4
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Year 2020 / Volume 112 / Number 4

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Efficacy and safety of water-exchange enteroscopy compared to carbon dioxide insufflation during enteroscopy

258-261

Gerardo Blanco Velasco, Raúl Antonio Zamarripa-Mottú, Roberto Soria-Rodríguez, Omar Michel Solórzano-Pineda, Juan Manuel Blancas Valencia, Enrique Murcio-Pérez, Óscar Víctor Hernandez Mondragón,

Introduction: carbon dioxide (CO2) insufflation during enteroscopy reduces procedure time and subsequent symptoms and increases the insertion depth compared with room air. In colonoscopy, the water-exchange (WE) technique is associated with less pain compared with CO2 insufflation. The WE technique is not well studied in enteroscopy. The aim of this study was to compare the efficacy and safety of enteroscopy with WE and CO2. Methods: a prospective, comparative and observational study was performed of double balloon enteroscopies (DBE) that were randomized in two groups. The first group used WE while the second group used CO2 insufflation. The data collected was evaluated via univariate analysis and multiple logistic regression (variables with p ≤ 0.10 according to the univariate analysis). Results: forty-six DBE were included; 23 in each arm. The median age of cases was 63.5 years and 37% were female. There were no statistical differences between the groups with regard to the access route, findings, therapy and complications. Four patients (20%) in the CO2 group had adverse events (abdominal distension and pain) and one in the WE group (nausea), which was not statistically significant. The median insertion depth was greater in the CO2 group; 260 cm vs 160 cm (p = 0.048). Multiple logistic regression showed a statistically significant difference in the insertion depth using CO2 insufflation (OR 1.009, 1.001-1.017; p = 0.034). Conclusions: DBE with a CO2 insufflation technique and WE are safe with a greater insertion depth with CO2.

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Asociación Española de Ecografía Digestiva Sociedad Española de Endoscopia Digestiva Sociedad Española de Patología Digestiva
The Spanish Journal of Gastroenterology is the official organ of the Sociedad Española de Patología Digestiva, the Sociedad Española de Endoscopia Digestiva and the Asociación Española de Ecografía Digestiva
© 2020 The Spanish Journal of Gastroenterology