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https://www.readbyqxmd.com/read/28221147/-update-in-the-management-of-ureteral-lithiasis-semirigid-and-flexible-ureterorenoscopy
#1
Carlos Torrecilla Ortiz, Sergi Colom Feixas
OBJECTIVE: The contribution of therapeutic ureteroscopy done by Perez Castro in 1980 varied the management algorithm for ureteral lithiasis worldwide. The techniques of Retrograde Ureteroscopy and transrenal antegrade ureteroscopy led to the abandonment of open surgery for the treatment of ureteral lithiasis. Only Shock wave lithotripsy has maintained similar success rates in selected cases. METHODS: Descriptive analysis of the semirigid and flexible ureteroscopy techniques performed in our department over the last 10 years giving detail on the technique and safety tips to increase the efficacy and efficiency of ureteroscopy...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28210510/single-operator-peroral-cholangioscopy-for-extraction-of-cystic-duct-stones-in-postcholecystectomy-mirizzi-syndrome
#2
Jason Deforest Jones, Rishi Pawa
Mirizzi syndrome is an exceptionally rare diagnosis with an annual incidence of less than 1% in developed countries. In this disease process, stone burden in the cystic duct or gallbladder neck leads to common hepatic duct obstruction, either by mechanical compression or secondary inflammation. Mirizzi syndrome is classified into one of four types based on the presence and severity of cholecystobiliary fistulization. Treatment is primarily surgical in nature and largely dictated by the type of Mirizzi syndrome encountered...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28208644/novel-magnetic-cross-linked-cellulase-aggregates-with-a-potential-application-in-lignocellulosic-biomass-bioconversion
#3
Junqi Jia, Weiwei Zhang, Zengjie Yang, Xianling Yang, Na Wang, Xiaoqi Yu
The utilization of renewable biomass resources to produce high-value chemicals by enzymatic processes is beneficial for alternative energy production, due to the accelerating depletion of fossil fuels. As immobilization techniques can improve enzyme stability and reusability, a novel magnetic cross-linked cellulase aggregate has been developed and applied for biomass bioconversion. The crosslinked aggregates could purify and immobilize enzymes in a single operation, and could then be combined with magnetic nanoparticles (MNPs), which provides easy separation of the materials...
February 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28207470/improving-functional-and-aesthetic-outcomes-in-syndromic-patients-with-webbed-neck-deformity-utilizing-a-staged-endoscopic-assisted-approach-to-improve-the-posterior-hairline-and-decrease-scar-burden
#4
Emily Van Kouwenberg, Anmol S Chattha, Oluwaseun A Adetayo
INTRODUCTION: Webbed neck deformity (WND) can have significant functional and psychosocial impact on the developing child. Surgical correction can be challenging depending on the extent of the deformity, and patients often also have low posterior hairlines requiring simultaneous correction. Current surgical techniques include various methods of single-stage radical excision that often result in visible scar burden and residual deformity. There is currently no general consensus of which technique provides the best outcomes...
February 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28185905/a-preliminary-study-of-single-operator-cholangioscopy-for-diagnosing-pancreatic-cystic-lesions
#5
Chai Ning-Li, Feng Jia, Guo Yu-Hang, Li Hui-Kai, Ning Bo Wang, Xiangdong Wang, Wang Ying, Wang Yong-Hua, Zhai Ya-Qi, Linghu En-Qiang
BACKGROUND AND AIMS: Advances in imaging technology have improved the annual detection rate of pancreatic cystic lesions, but the preoperative diagnosis of pancreatic cystic lesions remains unclear. Thus, the usefulness of single operator cholangioscopy (SOC) as a diagnostic imaging tool for pancreatic cystic lesions is worth investigating. We performed an intracystic visual examination of pancreatic cystic lesions using SOC to determine the diagnostic value of SOC for pancreatic cystic lesions...
February 6, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28159386/predictive-factors-for-resorption-of-teeth-adjacent-to-impacted-maxillary-canines
#6
Fany Cuminetti, François Boutin, Laure Frapier
PURPOSE: The aim of this study was to assess the link between the degree of resorption of teeth adjacent to an impacted maxillary canine and the situation of the latter so as to identify factors predictive of resorption. MATERIAL AND METHODS: This was a retrospective study concerning all patients with impacted maxillary canines who consulted the orthodontics department at the Center for dental care, teaching and research (CSERD) in Montpellier between 2010 and 2015, with a full radiological file including panorex, periapical long-cone and cone-beam images...
January 31, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28155179/the-need-of-operational-paradigms-for-frailty-in-older-persons-the-sprintt-project
#7
Matteo Cesari, Emanuele Marzetti, Riccardo Calvani, Bruno Vellas, Roberto Bernabei, Philippe Bordes, Ronenn Roubenoff, Francesco Landi, Antonio Cherubini
The exploration of frailty as a pre-disability geriatric condition represents one of the most promising research arenas of modern medicine. Frailty is today indicated as a paradigmatic condition around which the traditional healthcare systems might be re-shaped and optimized in order to address the complexities and peculiarities of elders. Unfortunately, the lack of consensus around a single operational definition has limited the clinical implementation of frailty in clinical practice. In these last years, growing attention (even beyond the traditional boundaries of geriatric medicine) has been given to physical performance measures...
February 2, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28146445/risk-of-cholangiocarcinoma-in-patients-with-primary-sclerosing-cholangitis-diagnosis-and-surveillance
#8
Hanno Ehlken, Roman Zenouzi, Christoph Schramm
PURPOSE OF REVIEW: Primary sclerosing cholangitis (PSC) is associated with an increased risk of hepatobiliary and extrahepatic malignancy. Particularly the risk of cholangiocarcinoma (CCA) is greatly increased. To provide potentially curative treatments for affected patients an early diagnosis of CCA is crucial. We here review the current advances with respect to CCA diagnosis and surveillance and discuss a rational approach on how to perform surveillance of CCA in PSC patients. RECENT FINDINGS: Given the shortcomings of the current modalities for the surveillance and diagnosis of CCA in PSC, recent studies have focused on novel biomarkers for CCA...
March 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28138811/pars-plana-vitrectomy-with-360%C3%A2-versus-localized-laser-retinopexy-in-the-management-of-retinal-detachment-with-undetected-breaks-intraoperatively-a-retrospective-comparative-interventional-study
#9
Chuandi Zhou, Zhi Zheng, Qinghua Qiu
The purpose of this study is to compare the efficacy of intraoperative 360° and localized laser retinopexy in 23-gauge pars plana vitrectomy (PPV) for rhegmatogenous retinal detachments (RRD) with undetected retinal breaks intraoperatively. This is a retrospective, comparative, interventional study. Medical records of 48 consecutive eyes with RRD of intraoperative undetected retinal breaks were reviewed. Nineteen patients (group I) received 360° laser retinopexy in PPV, while the remaining 29 patients (group II) underwent localized laser retinopexy...
January 30, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28124523/predictive-role-of-trimprob-associated-with-multiparametric-mri-in-the-diagnosis-of-prostate-cancer
#10
Gustavo Cardoso Guimaraes, Walter Henriques da Costa, Renato Almeida Rosa, Stênio Zequi, Ricardo Favaretto
OBJECTIVES: To evaluate the predictive value of TRIMprob test to detect prostate cancer (PCa) in patients referred to prostate biopsy (PB). MATERIAL AND METHODS: Patients with PSA <10ng/mL and rectal exam without findings suggestive of prostate cancer were selected for TRIMprob evaluation. Exam was performed by a single operator through transperineal approach. Patients admitted for the study were submitted to TRIMprob and multiparametric magnetic resonance (mpMRI) and posteriorly to PB...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28112469/gold-catalyzed-3-2-retro-3-2-3-2-cycloaddition-cascade-reaction-of-n-alkoxyazomethine-ylides
#11
Shoichi Sugita, Norihiko Takeda, Norimitsu Tohnai, Mikiji Miyata, Okiko Miyata, Masafumi Ueda
A novel cascade reaction has been developed for the synthesis of 2,6-methanopyrrolo[1,2-b]isoxazoles based on the gold-catalyzed generation of an N-allyloxyazomethine ylide. This reaction involves sequential [3+2]/retro-[3+2]/[3+2] cycloaddition reactions, thus providing facile access to fused and bridged heterocycles which would be otherwise difficult to prepare using existing synthetic methods. Notably, this reaction allows the efficient construction of three C-C bonds, one C-O bond, one C-N bond and one C-H bond, as well as the cleavage of one C-C bond, one C-O bond and one C-H bond in a single operation...
January 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28109276/introduction-of-microsystems-in-a-level-3-neonatal-intensive-care-unit-an-interprofessional-approach
#12
Salhab El Helou, Samira Samiee-Zafarghandy, Gerhard Fusch, Muzafar Gani Abdul Wahab, Lynda Aliberti, Ahmad Bakry, Deborah Barnard, Joanne Doucette, Enas El Gouhary, Michael Marrin, Carrie-Lynn Meyer, Amit Mukerji, Anne Nwebube, David Pogorzelski, Edward Pugh, Karen Schattauer, Jay Shah, Sandesh Shivananda, Sumesh Thomas, Jennifer Twiss, Connie Williams, Sourabh Dutta, Christoph Fusch
BACKGROUND: Growth of neonatal intensive care units in number and size has raised questions towards ability to maintain continuity and quality of care. Structural organization of intensive care units is known as a key element for maintaining the quality of care of these fragile patients. The reconstruction of megaunits of intensive care to smaller care units within a single operational service might help with provision of safe and effective care. METHODS/DESIGN: The clinical team and patient distribution lay out, admission and discharge criteria and interdisciplinary round model was reorganized to follow the microstructure philosophy...
January 21, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28106235/scleral-buckling-in-phakic-uncomplicated-primary-rhegmatogenous-retinal-detachment-long-term-outcomes
#13
Claudia Quijano, Micol Alkabes, Maria Gómez-Resa, Andrea Oleñik, Edoardo Villani, Borja Corcóstegui
PURPOSE: Scleral buckling (SB) is a surgical technique that has been used successfully to treat retinal detachments for the last 6 decades. The aim of this study was to report the long-term anatomical and functional outcomes of SB surgery in phakic patients with uncomplicated primary rhegmatogenous retinal detachment (PRRD). This article also outlines the benefits of SB compared to pars plana vitrectomy, such as reducing the risk of developing cataract, high intraocular pressure, and glaucoma, in addition to reducing surgical cost...
December 31, 2016: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28106184/organocatalyzed-aerobic-oxidative-robinson-type-annulation-of-2-isocyanochalcones-expedient-synthesis-of-phenanthridines
#14
Zhongyan Hu, Jinhuan Dong, Yang Men, Yifei Li, Xianxiu Xu
A DBU-catalyzed aerobic oxidative Robinson annulation of 2-isocyanochalcones with active methylene ketones was developed for the expedient synthesis of phenanthridines in high to excellent yields. This unprecedented multistep domino reaction represents a new strategy for the construction of this tricyclic scaffold by the sequential formation of two rings and three C-C bonds in a single operation at room temperature.
January 20, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28080069/direct-construction-of-2-3-dihydroxy-2-3-diaryltetrahydrofurans-via-n-heterocyclic-carbene-base-mediated-domino-reactions-of-aromatic-aldehydes-and-vinyl-selenone
#15
Atanu Bhaumik, Ram Subhawan Verma, Bhoopendra Tiwari
A one-pot, stereoselective construction of 2,3-dihydroxy-2,3-diaryltetrahydrofurans has been achieved via N-heterocyclic carbene (NHC)/base-mediated domino reactions of aldehydes and vinyl selenone. The products containing two contiguous quaternary hydroxyl functionalities among the three stereocenters are obtained advantageously as either acetals or ketals through the formation of five new chemical bonds in a single operation. This report constitutes an altogether different reactivity of vinyl selenone in comparison with the corresponding sulfones and phosphonates under NHC/base-mediated reactions...
January 12, 2017: Organic Letters
https://www.readbyqxmd.com/read/28073204/who-apparently-more-spends-in-reality-spends-less-spending-a-little-more-for-the-rental-of-the-extracorporeal-lithotripter-can-save-a-lot-about-the-days-of-hospitalization-for-urinary-stones
#16
Giuseppe Albino, Francesco Albergo
OBJECTIVE: The right to health (according to the Article 32 of the Italian Republic Constitution) is financially conditioned; for this reason the National Health System (NHS) has the objective of rationalize health expenditure according to the criteria of efficiency, effectiveness and economy. This paper is an example of rationalization concerning the extracorporeal shock wave lithotripsy (ESWL). MATERIALS AND METHODS: Hospital admissions for urinary stones were taken into account...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28072805/anatomical-variants-of-the-pudendal-nerve-observed-during-a-transgluteal-surgical-approach-in-a-population-of-patients-with-pudendal-neuralgia
#17
Stephane Ploteau, Marie-Aimee Perrouin-Verbe, Jean-Jacques Labat, Thibault Riant, Amelie Levesque, Roger Robert
BACKGROUND: Several studies have described the course and anatomical relations of the pudendal nerve. Several surgical nerve decompression techniques have been described, but only the transgluteal approach has been validated by a prospective randomized clinical trial. The purpose of this study was to describe the course of the nerve and its variants in a population of patients with pudendal neuralgia in order to guide the surgeon in the choice of surgical approach for pudendal nerve decompression...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28060172/applications-of-burow-s-grafts-in-the-reconstruction-of-mohs-micrographic-surgery-defects
#18
Anastasia Benoit, Brian C Leach, Joel Cook
BACKGROUND: Surgical defects in anatomically challenging locations, such as near free margins or crossing cosmetic subunits, may present reconstructive challenges to the dermatologic surgeon. For selected defects, Burow's grafts may produce functional and aesthetic results in a single operative session. OBJECTIVE: To describe the applications of the Burow's graft technique for the repair of defects after Mohs micrographic surgery. METHODS: An institutional review board-approved retrospective database review of surgical defects repaired with Burow's grafting after Mohs micrographic surgery at the Medical University of South Carolina was performed...
December 29, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28054079/gold-catalyzed-sequential-annulations-towards-3-4-fused-bi-tri-cyclic-furans-involving-a-3-2-2-cycloaddition
#19
Suna Liu, Pu Yang, Shiyong Peng, Chenghao Zhu, Shengyu Cao, Jian Li, Jiangtao Sun
A gold-catalyzed sequential annulation reaction to prepare 3,4-fused bicyclic furan compounds has been realized by employing 2-(1-alkynyl)-2-alken-1-ones and 1,3,5-triazines as the starting materials under mild reaction conditions. This protocol features multiple bond formation in a single operation with the incorporation of two nitrogen and two carbon atoms into the final products. A mechanistic investigation reveals that the sequential annulations involved an unprecedented stepwise [3+2+2]-cycloaddition.
January 5, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28050063/a-radiographic-study-of-external-apical-root-resorption-in-patients-treated-with-single-phase-fixed-orthodontic-therapy
#20
S S Agarwal, S S Chopra, Prasanna Kumar, B Jayan, K Nehra, Mohit Sharma
BACKGROUND: External apical root resorption (EARR) is one of the most common iatrogenic consequences of orthodontic tooth movement. Many factors like gender, duration, orthodontic force and duration of orthodontic treatment have been implicated to cause EARR. METHODS: Pre- and post-treatment OPGs of 60 orthodontic patients (30 males and 30 females) who had undergone treatment with a single phase of fixed orthodontic therapy were randomly selected from institutional archives...
December 2016: Medical Journal, Armed Forces India
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