BACKGROUND: The role of changes in gut microflora on upper gastrointestinal (UGI) perforations is not known. We conducted a retrospective case-control study to examine the relationship between antibiotic exposure-a proxy for microbiome modulation-and UGI perforations in a national sample. METHODS: We queried a 5% random sample of Medicare (2009-201...
Tympanoplasty which is the repair of the tympanic membrane using temporalis fascia, has been done worldwide and has stood the test of time. However in cases of reperforation or large/subtotal perforations, we are often left in need of some sturdy material for grafting. To compare the graft uptake and hearing improvement in patients undergoing type ...
Published in Journal of Mechanical Science and Technology
A conventional car silencer is incorporated with several plates containing perforations for the deduction of sound waves from a car exhaust gases. Perforations in tubes or plates facilitate in developing a large variety of comprehensive models for sound attenuation. Exhaust gases passing through unimpeded straight perforated pipe forces the sound w...
Published in International Journal of Colorectal Disease
BackgroundEndoscopic mucosal resection (EMR) has been proven to be safe and effective for the treatment of colorectal adenomas. However, data are limited on the safety of this technique for large polyps and in elderly patients. Aims of our study were to examine the bleeding and perforation rates in patients with large non-pedunculated adenomas (≥20...
Published in Journal of The Institution of Engineers (India): Series A
Breakwaters are one of the most important harbour structures constructed to withstand and dissipate the dynamic energy due to the action of the waves. Due to fast growing need of the universe and advances in technology different types of breakwaters are being developed. Quarter circle breakwater is a new type of breakwater emerged from semi circula...
Introduction : La trépanation crânienne est l’une des plus anciennes techniques chirurgicales réalisées au monde. À partir d'une momie Chachapoya présentant une trépanation crânienne, nous allons essayer de définir les raisons d’un tel acte et les moyens mise en œuvre. Matériel et méthode : Une étude anthropologique de la trépanation à partir de ph...
Ces travaux de thèse sont consacrés à l’analyse des phénomènes ondulatoires se produisant dans les structures périodiques : des phénomènes comme les réflexions de Bragg ou les résonances locales qui émergent dans de telles structures permettent de contrôler la propagation des ondes, et ces structures présentent donc des propriétés spécifiques. Dans...
Published in Journal of Gastrointestinal Surgery
Background/aimsEndoscopic closure is technically feasible in the majority of gastrointestinal defects. The aim of this study is to evaluate the technical and clinical outcomes, and identify variables predicting successful outcomes in patients with attempted closure.MethodsThis is a retrospective study of patients undergoing endoscopic closure of ga...
Published in Acta Endoscopica
La cholangiopancréatographie rétrograde endoscopique est un acte endoscopique thérapeutique dont la morbidité est estimée entre 5 à 10 %. La pancréatite aiguë représente la complication la plus fréquente et potentiellement la plus grave. Les facteurs de risque inhérents à l’acte ou au profil du patient sont bien identifiés et de nouvelles recommand...
A compact wideband rectangular dielectric resonator antenna (RDRA) is investigated and presented. Perforations improve bandwidth by lowering down the quality factor. The perforations are an array of symmetrical square-shaped slots drilled uniformly on the RDRA. On choosing the optimal size of slots and distance between two consecutive slots, the fu...
