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switch procedure

Belén Pérez-Pevida, Daniela Stefania Trifu, Anna Kamocka, Julia Álvarez Hernández
CONTEXT: Bariatric surgery has beneficial effects on obesity and associated comorbidities such as glycaemic control in type 2 diabetes, dyslipidaemia, hypertension, and renal and hepatic function. Nevertheless, this surgery is not free of complications and possible side effects due to restrictive and/or malabsorptive related components. CASE DESCRIPTION: We report the case of a 60-year-old woman whose past medical history included morbid obesity, hypertension and Scopinaro biliopancreatic diversion (BPD) with duodenal switch in 1998...
March 1, 2018: International Journal of Surgery Case Reports
Qingwang Xue, Chunxue Liu, Xia Li, Li Dai, Huaisheng Wang
Various fluorescent sensing systems for miRNAs detection have been developed. But they mostly contain enzymatic amplification reactions and label procedures. The strict reaction conditions of tool enzymes and the high cost of labeling limit their potential applications, especially in complex biological matrix. Here we have addressed the difficult problems and report a strategy for label-free fluorescent DNA dendrimers based on enzyme-free nonlinear hybridization chain reaction (HCR)-mediated multiple G-quadruplex for simple, sensitive and selective detection of miRNAs with low-background signal...
March 16, 2018: Bioconjugate Chemistry
Laura Lago, Luis da Silva, Isabel Martinez-Silva, Benito Rilo
PURPOSE: The aim of this randomized clinical trial with a 5-year follow-up was to assess the differences in radiographic levels of peri-implant bone crest between tissue-level implants restored with platform matching (control group) and bone-level implants restored with platform switching (test group) in the posterior region. MATERIALS AND METHODS: To assess marginal bone level changes, periapical radiographs were taken at the moment of prosthesis delivery (baseline), at 1 year, and at 5 years after the definitive restoration...
March 2018: International Journal of Oral & Maxillofacial Implants
Margaux Alazard, Jérôme Lacotte, Jérôme Horvilleur, Mina Ait-Said, Fiorella Salerno, Vladimir Manenti, Jean-François Piechaud, Jérôme Garot, Damien Bonnet, Alice Maltret
PURPOSE: To evaluate various strategies in order to minimize the risk of coronary injury during posteroseptal accessory pathways ablation in children. METHODS: We retrospectively reviewed 68 posteroseptal accessory pathways ablation procedures (20 decremental and 48 typical accessory pathways) performed in 62 pediatric patients at our institution between July 2009 and December 2016. Only posteroseptal accessory pathways targeted near or within the coronary sinus were included and ablation was mostly performed using irrigated tip radiofrequency...
March 12, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Amit Surve, Daniel Cottam, Andres Sanchez-Pernaute, Antonio Torres, Joshua Roller, Yong Kwon, Joshua Mourot, Bleu Schniederjan, Bo Neichoy, Paul Enochs, Michael Tyner, Jon Bruce, Scott Bovard, Mitchell Roslin, Muhammad Jawad, Andre Teixeira, Myur Srikanth, Jason Free, Hinali Zaveri, David Pilati, Jamie Bull, LeGrand Belnap, Christina Richards, Walter Medlin, Rena Moon, Austin Cottam, Sarah Sabrudin, Samuel Cottam, Aneesh Dhorepatil
BACKGROUND: The single-anastomosis duodenal switch procedure is a type of duodenal switch that involves a loop anastomosis rather than traditional Roux-en-Y reconstruction. To date, there have been no multicenter studies looking at the complications associated with post-pyloric loop reconstruction. OBJECTIVES: The aim of the study was to report the incidence of complications associated with loop duodeno-ileostomy (DI) following single-anastomosis duodenal switch (SADS) procedures...
February 2, 2018: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Mark Dennis, Irina Kotchetkova, Rachael Cordina, David S Celermajer
BACKGROUND: The atrial switch operation for transposition of the Great Arteries (TGA) (Mustard or Senning Procedure) provides excellent short-term survival. Significant long-term concerns exist for these patients, however, including the ability of the right ventricle to maintain systemic perfusion and the risk of arrhythmia. We seek to describe long-term mortality and morbidity of this group of adult patients. METHODS: Consecutive patients who had undergone an atrial switch procedure, who were aged over 16 years and who were followed up at our tertiary level adult congenital heart disease (ACHD) service in Sydney, Australia since 2000 were included...
October 31, 2017: Heart, Lung & Circulation
Stanley L Cohan, Harold Moses, Jonathan Calkwood, Carlo Tornatore, Chris LaGanke, Kyle E Smoot, Venkata Meka, Macaulay Okwuokenye, Christophe Hotermans, Jason P Mendoza, Monica K Mann, Leslie A Meltzer
BACKGROUND: Delayed-release dimethyl fumarate (DMF) may be a therapeutic option for patients with relapsing-remitting multiple sclerosis (RRMS) who are treated with natalizumab and require a change in therapy. However, there is limited information regarding predictors of favorable treatment outcomes in patients switching from natalizumab to DMF. Clinical practices and sequencing protocols vary. Herein, we present the clinical results, including annualized relapse rate (ARR) and risk of relapse, of a phase 4 retrospective observational study of patients with RRMS who switched from natalizumab to DMF in a community practice setting (STRATEGY)...
February 26, 2018: Multiple Sclerosis and related Disorders
Victor Mittelstädt, Jeff Miller, Andrea Kiesel
In the present study, we introduce a novel, self-organized task-switching paradigm that can be used to study more directly the determinants of switching. Instead of instructing participants to randomly switch between tasks, as in the classic voluntary task-switching paradigm (Arrington & Logan, 2004), we instructed participants to optimize their task performance in a voluntary task-switching environment in which the stimulus associated with the previously selected task appeared in each trial after a delay...
March 9, 2018: Memory & Cognition
Gilles Defer, Florian Le Caignec, Sophie Fedrizzi, François Montastruc, Damien Chevanne, Jean-Jacques Parienti, Laure Peyro-Saint-Paul
BACKGROUND: The reporting of adverse drug reactions (ADR) by patients represents an interesting challenge in the field of pharmacovigilance, but the reporting system is not adequately implemented in France. In 2015, only 20 MS patients in France reported ADR due to first-line disease-modifying drugs (DMD), while more than 3000 patients were initiated on DMD. The aim of this study is to validate a proof-of-concept as to whether the use of a mobile application (App) increases ADR reporting among patients with relapsing-remitting multiple sclerosis (RR-MS) receiving DMD...
March 9, 2018: Trials
Chengbin He, Shuxin Wang, Siyang Zuo
BACKGROUND/PURPOSE: Robotic-assisted endovascular intervention surgery has attracted significant attention and interest in recent years. However, limited designs have focused on the variable stiffness mechanism of the catheter shaft. Flexible catheter needs to be partially switched to a rigid state that can hold its shape against external force to achieve a stable and effective insertion procedure. Furthermore, driving catheter in a similar way with manual procedures has the potential to make full use of the extensive experience from conventional catheter navigation...
March 8, 2018: International Journal of Computer Assisted Radiology and Surgery
Amador García Ruiz de Gordejuela, Almino Cardoso Ramos, Manoel Galvao Neto, Mario Nora, Antonio J Torres García, Andrés Sánchez Pernaute, Jordi Pujol Gebelli
INTRODUCTION: Live surgery is a topic of interest at every meeting or course in the field of surgery. The potential of laparoscopy for live broadcasting makes it an excellent tool in continuing medical education. Surgeons who participate in live surgeries are usually experienced, but several conditions may influence the results and safety of a procedure. OBJECTIVES: To analyze safety and outcomes in a series of patients who underwent surgery in the last 10 years in a live surgery course at our institution...
March 2018: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Eoin J White, Muireann McMahon, Michael T Walsh, J Calvin Coffey, Leonard W O'Sullivan
The aim of this study was to quantify laparoscopic instrument use and actions of both limbs during a sample of common colorectal surgical procedures. A method was devised using Observer XT software to code video recordings. Anonymised HD video recordings of nine laparoscopic colorectal procedures performed by a single surgeon were analysed. We determined the percentage and frequency of instrument use and limb actions throughout the total laparoscopic surgical duration, as well as the duration of instrument inactivity...
March 5, 2018: Applied Ergonomics
Gerardo Cortese, Gabriele Sales, Giorgia Maiolo, Mario Morino, Martina Scanu, Luca Brazzi
BACKGROUND: The feasibility and safety of transanal endoscopic microsurgery (TEM) performed under spinal anaesthesia (SA) has been recently demonstrated. This retrospective study compared the differences in opioid consumption and postoperative recovery in patients undergoing TEM under GA and SA. METHODS: All consecutive patients who underwent TEM at 'Città della Salute e della Scienza' hospital of Turin (Italy) between January 2012 and December 2015 were enrolled...
March 7, 2018: Minerva Anestesiologica
Shenghai Guo, Fang Wang, Li Tao, Xinying Zhang, Xuesen Fan
A simple and practical procedure for the selective preparation of 3H-indol-3-one and indolo[1,2-c]quinazoline derivatives through copper-catalyzed aerobic oxygenation and intramolecular cyclization reactions of 2-(2-amidoaryl)-1H-indoles in the presence of acid has been disclosed. Interestingly, the reaction outcomes are exclusively dependent on the reaction medium employed. With DMF as the solvent, the amide moiety of indole substrates could act as an auxiliary to enable the indole's oxygenation reaction with molecular oxygen from air as the oxidant to give 3H-indol-3-one derivatives in a highly selective manner...
March 7, 2018: Journal of Organic Chemistry
Clare F McCloskey, Ann-Marie Mongan, Shivona Chetty, Darren M J McAteer, Shauna M Quinn
INTRODUCTION: To determine visual and anatomical outcomes of diabetic macular oedema (DMO) patients in a tertiary centre following conversion to aflibercept having been refractory to previous treatment with bevacizumab/ranibizumab. METHODS: A retrospective case series of patients with a diagnosis of DMO undergoing aflibercept intravitreal therapy for at least 6 months who had previous treatment with three consecutive bevacizumab/ranibizumab injections pre-switch...
March 5, 2018: Ophthalmology and Therapy
Andrew Feeney, Margaret Lucas
The ability to design tuned ultrasonic devices that can be operated in the same mode at two different frequencies has the potential to benefit a range of applications, such as surgical cutting procedures where the penetration through soft then hard tissues could be enhanced by switching the operating frequency. The cymbal transducer has recently been adapted to form a prototype ultrasonic surgical cutting device that operates at a single frequency. In this paper, two different methods of configuring a dual-resonance cymbal transducer are detailed...
March 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Christopher R Daigle, Stacy A Brethauer, Chao Tu, Anthony T Petrick, John M Morton, Philip R Schauer, Ali Aminian
BACKGROUND: National quality programs have been implemented to decrease the burden of adverse events on key outcomes in bariatric surgery. However, it is not well understood which complications have the most impact on patient health. OBJECTIVE: To quantify the impact of specific bariatric surgery complications on key clinical outcomes. SETTING: The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database...
January 12, 2018: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Moritz Wildgruber, Michael Köhler, Richard Brill, Holger Goessmann, Wibke Uller, René Müller-Wille, Walter A Wohlgemuth
PURPOSE: To evaluate the effects of lowering the detector entrance exposure in children undergoing interventional radiology procedures. MATERIALS AND METHODS: The study retrospectively investigated radiation dose levels in pediatric patients aged 0-18 years before (n = 39) and after (n = 26) lowering detector entrance dose, undergoing embolization of peripheral Arteriovenous malformations, Portal Vein Interventions or Percutaneous Transhepatic Cholangio Drainage (PTCD) between 2014 and 2017...
March 2018: European Journal of Radiology
A R Jones, M D Aspinall, M J Joyce
A detector system for the characterization of radiation fields of both fast neutrons and γ rays is described comprising of a gated photomultiplier tube (PMT), an EJ299-33 solid organic scintillator detector, and an external trigger circuit. The objective of this development was to conceive a means by which the PMT in such a system can be actuated remotely during the high-intensity bursts of pulsed γ-ray contamination that can arise during active interrogation procedures. The system is used to detect neutrons and γ rays using established pulse-shape discrimination (PSD) techniques...
February 2018: Review of Scientific Instruments
Yuming Xiang, Feng Wang, Hongjian You
The Chinese GF-3 satellite launched in August 2016 is a Synthetic Aperture Radar (SAR) satellite that has the largest number of imaging modes in the world. It achieves a free switch in the spotlight, stripmap, scanSAR, wave, global observation and other imaging modes. In order to further utilize GF-3 SAR images, an automatic and fast image registration procedure needs to be done. In this paper, we propose a novel image registration technique for GF-3 images of different imaging modes. The proposed algorithm consists of two stages: coarse registration and fine registration...
February 24, 2018: Sensors
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