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Endoscopic ultrasound-guided gastroenterostomy for gastric outlet obstruction in Mexico

World Journal of Surgical Procedures 2024年第3期14卷 15-20页

作者： massiel madelin rosario-morel Rodrigo Soto-Solis Katia Picazo-Ferrera Miriam Idalia Torres-Ruiz JoséAlberto Estradas-Trujillo Mario Alberto Gallardo-Ramírez Gerardo Akram Darwich-del Moral Luis Ariel Waller-González Department of Endoscopy Centro Médico Nacional“20 de Noviembre”ISSSTEMexico City 03229Mexico Department of Gastroenterology HospitalÁngeles PedregalMexico City 10700Mexico Department of Endoscopy Centro Médico ABCMexico City 01120Mexico Department of Endoscopy Hospital General de México“Dr.Eduardo Liceaga”Mexico City 06720Mexico

BACKGROUND Endoscopic ultrasound-guided gastroenterostomy(EUS-GE)has recently emerged as an alternative treatment for gastric outlet obstruction(GOO)in selected *** To report the initial experience of EUS-GE in patients with *** This study was a retrospective,observational,multicenter study in which the data from 10 patients who underwent EUS-GE due to GOO between September 2021 and May 2023 were *** analyzed technical success,clinical success,adverse events,and *** success was defined as adequate positioning and deployment of the *** success was defined as the patient’s ability to tolerate oral intake without vomiting 7 d after the *** adverse events were *** Eleven procedures in 10 patients with GOO were *** mean age of the patients was 67.5 years(range:56-77 years).Malignant GOO was present in 9 *** success was achieved in 9/11 procedures(82%).Among them,clinical success was achieved in 9 patients(100%).Adverse events occurred in 1 patient(9%).The median survival was 3 months(n=7;range:1-8 months).CONCLUSION EUS-GE is a feasible therapeutic option in the treatment of GOO.

关键词： Endoscopic ultrasound-guided gastroenterostomy Gastric outlet obstruction Lumen apposing metal stent Interventional endoscopic ultrasound Gastrojejunostomy Duodenal stenting

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Endoscopic management of massive rectal bleeding from a Dieulafoy’s lesion:Case report

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World Journal of Gastrointestinal Endoscopy 2019年第7期11卷 438-442页

作者： Mario Rene Pineda-De Paz massiel madelin rosario-morel Jose Guadalupe Lopez-Fuentes Luis Ariel Waller-Gonzalez Rodrigo Soto-Solis Department of Endoscopy National Medical Center November 20~(TH) ISSSTE

BACKGROUND Rectal Dieulafoy's lesions (DLs) are very rare;however, they can be life threatening when presented with massive hemorrhage. CASE SUMMARY A 44-year-old female with medical history of chronic renal failure who was on renal replacement therapy presented with lower gastrointestinal hemorrhage. Physical examination revealed signs of hypovolemic shock and massive rectal bleeding. Complete blood count revealed abrupt decrease in hematocrit. After hemodynamic stabilization, an urgent colonoscopy was performed. A rectal DL was diagnosed, and it was successfully treated with two hemoclips. There were no signs of recurrent bleeding at thirty days of follow-up. CONCLUSION Rectal DLs represent an unusual cause of lower gastrointestinal bleeding. Massive hemorrhage can increase the morbidity and mortality of these patients. Endoscopic management continues to be the reference standard in the diagnosis and therapy of these lesions. Thermal, mechanical (hemoclip or band ligation), or combination therapy (adrenaline injection combined with thermal or mechanical therapy) should be considered the first choice for treatment.

关键词： Dieulafoy's Lesion Endoscopic hemostasis Massive rectal bleeding Case report

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Toward the Design of Multi Asymmetric Surface Dielectric Barrier Discharge (ASDBD) Actuators

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Plasma Science and Technology 2015年第1期17卷 56-63页

作者： massiel ZADEH V.ROHANI F.CAUNEAU F.FABRY L.FULCHERI Centre for Processes Renewable Energies and Energy Systems-PERSEE- MINES ParisTech

This paper investigates the electrical and mechanical behaviors of a single-ASDBD actuator and a two-ASDBD one supplied in sinusoidal mode（1-10 kHz）.The main objective of our research is to determine the optimum frequency values for the function of these actuators with a given power *** this purpose,we determine the electrical power density input to the actuators versus frequency through two methods：i） a semi-theoretical method,based on an impedance calculation,and ii） an experimental method,based on direct electrical *** methods show that the addition of a second ASDBD changes the resonance frequency value of the actuator by moving it towards low *** characterizing the aerodynamic mobile layer structure induced by the single-ASDBD actuator,we analyze experimentally the mechanical response of a two-ASDBD actuator as a function of the inter-ASDBD *** experiments demonstrate that the induced electric wind velocity and the electro-mechanical yield of a twoASDBD actuator reach a maximum value for an optimum inter-ASDBD distance,which is a useful value for the design of highly efficient multi-ASDBD actuators.

关键词： ASDBD actuator resonance frequency electro-mechanical yield

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