keyword
MENU ▼
Read by QxMD icon Read
search

Single-operant

keyword
https://www.readbyqxmd.com/read/28728944/ultrasound-guided-thoracic-paravertebral-block-cadaveric-study-in-foxes-vulpes-vulpes
#1
Paolo Monticelli, Ian Jones, Jaime Viscasillas
OBJECTIVE: To describe an ultrasound-guided thoracic paravertebral block in canidae. STUDY DESIGN: Prospective, experimental, cadaveric study. ANIMALS: Twelve thawed fox cadavers. METHODS: A 15 MHz linear transducer was used to visualize the paravertebral space at the level of the fifth thoracic vertebrae. Iohexol (300 mg mL(-1)) at 0.2 mL kg(-1) was injected into the right and left paravertebral spaces under ultrasound guidance using a Tuohy needle...
March 22, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28721463/exstrophy-bladder-reconstruction-or-diversion-for-the-underprivileged
#2
REVIEW
Yogesh Kumar Sarin, Virender Sekhon
The surgical techniques for management of bladder exstrophy epispadias complex have evolved from staged reconstruction, complete primary repair to radical mobilization. Post-operative complications add to the multiplicity of surgical procedures at each step. The end results are variable with many achieving continence rates of 85-89% only after bladder augmentation and clean intermittent catheterization. The situation is further complicated in resource-poor settings, where illiteracy and poverty are the driving factors for choosing a single operative procedure for creation of low pressure reservoir aiming at upper tract preservation and good primary continence...
July 18, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28708815/incidence-of-posterior-vitreous-detachment-after-femtosecond-lasik-compared-with-microkeratome-lasik
#3
Moataz Hamed Osman, Noha Mahmoud Khalil, Mohamed-Sameh El-Agha
PURPOSE: To compare the incidence of posterior vitreous detachment (PVD) after femtosecond and microkeratome laser in situ keratomileusis (LASIK). SETTING: Rowad Correction Centre, Cairo, Egypt (a private center affiliated to Cairo University). DESIGN: Prospective, nonrandomized comparative unmasked study. METHODS: The study was conducted at a single laser center. Eligible patients chose between femtosecond and microkeratome LASIK after appropriate counseling...
July 13, 2017: Cornea
https://www.readbyqxmd.com/read/28698497/hardware-software-data-acquisition-system-for-real-time-cell-temperature-monitoring-in-air-cooled-polymer-electrolyte-fuel-cells
#4
Francisca Segura, Veronica Bartolucci, José Manuel Andújar
This work presents a hardware/software data acquisition system developed for monitoring the temperature in real time of the cells in Air-Cooled Polymer Electrolyte Fuel Cells (AC-PEFC). These fuel cells are of great interest because they can carry out, in a single operation, the processes of oxidation and refrigeration. This allows reduction of weight, volume, cost and complexity of the control system in the AC-PEFC. In this type of PEFC (and in general in any PEFC), the reliable monitoring of temperature along the entire surface of the stack is fundamental, since a suitable temperature and a regular distribution thereof, are key for a better performance of the stack and a longer lifetime under the best operating conditions...
July 9, 2017: Sensors
https://www.readbyqxmd.com/read/28684138/novel-3d-ultrasound-system-for-midline-single-operator-epidurals-a-feasibility-study-on-a-porcine-model
#5
J Stone, P Beigi, R Rohling, V Lessoway, A Dube, V Gunka
BACKGROUND: We developed a real-time 3D ultrasound thick slice rendering technique and innovative Epiguide needle-guide as an adjunct to single-operator midline epidural needle insertions. Study goals were to determine feasibility of the technique in a porcine model and compare the visibility of standard and echogenic needles. METHODS: Thirty-four lumbar needle insertions were performed on six intact porcine spines ex vivo. Ultrasound scanning identified the insertion site and, using an Epiguide, the needle was guided into the epidural space through the ligamentum flavum in the midline plane, watched in real-time on the 3D ultrasound...
May 5, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28671469/total-synthesis-of-lycopladine-a-and-carinatine-a-via-a-base-mediated-carbocyclization
#6
Felix W W Hartrampf, Dirk Trauner
A concise, enantioselective synthesis of lycopladine A and carinatine A is presented. Our synthetic approach hinges on the recently developed mild carbocyclization of ynones to furnish the hydrindane core of the alkaloids. Their pyridine ring was efficiently installed using the Ciufolini method. Both heterocycles of carinatine A, a rare naturally occurring nitrone, were formed in a single operation.
July 19, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28660434/decortication-and-osteotomy-for-the-correction-of-multiplanar-deformity-in-the-treatment-of-malunion-in-adult-diaphyseal-femoral-deformity-a-case-series-and-technique-description
#7
S Middleton, R W Walker, M Norton
AIM: To review patients that have undergone correction of a symptomatic femoral malunion using osteotomy combined with decortication. METHODS: A retrospective review of all patients who have undergone decortication and multiplanar osteotomy, looking at the pre-operative deformity, correction achieved, time to union and complications. RESULTS: Seven patients underwent correction under the senior author from 2003 to 2012. Average age was 46 years (range 32-60 years)...
June 28, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28658697/-french-comment-on-article-performance-of-a-fully-disposable-digital-single-operator-cholangiopancreatoscope1%C3%A2
#8
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Endoscopy
https://www.readbyqxmd.com/read/28654258/pd-peppsi-pd-nhc-precatalyst-for-suzuki-miyaura-cross-coupling-reactions-of-amides
#9
Peng Lei, Guangrong Meng, Yun Ling, Jie An, Michal Szostak
Pd-PEPPSI-IPr serves as a highly reactive precatalyst in the direct Suzuki-Miyaura cross-coupling of amides. An array of amides can be cross-coupled with a range of arylboronic acids in very good yields using a single, operationally simple protocol. The studies described represent the first use of versatile PEPPSI type of Pd-NHC complexes as catalysts for the cross-coupling of amides by N-C bond activation. The method is user-friendly, since it employs a commercially available, air- and moisture-stable Pd-PEPPSI-IPr complex...
June 27, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28652659/single-operator-cholangioscopy-for-biliary-complications-in-liver-transplant-recipients
#10
Anna Hüsing-Kabar, Hauke Sebastian Heinzow, Hartmut Hans-Jürgen Schmidt, Carina Stenger, Hans Ulrich Gerth, Michele Pohlen, Gerold Thölking, Christian Wilms, Iyad Kabar
AIM: To evaluate cholangioscopy in addition to endoscopic retrograde cholangiopancreatography (ERCP) for management of biliary complications after liver transplantation (LT). METHODS: Twenty-six LT recipients with duct-to-duct biliary reconstruction who underwent ERCP for suspected biliary complications between April and December 2016 at the university hospital of Muenster were consecutively enrolled in this observational study. After evaluating bile ducts using fluoroscopy, cholangioscopy using a modern digital single-operator cholangioscopy system (SpyGlass DS™) was performed during the same procedure with patients under conscious sedation...
June 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28642910/influence-of-abutment-design-on-retention-of-metal-copings-cemented-to-implants
#11
Albano Porto da Cunha, Glauco Pereira Moysés, Ana Christina Claro Neves, Rafael Pino Vitti, Flávia Cardoso da Rosa Goulart, Laís Regiane da Siva-Concílio
Objective The study evaluated the influence of abutment design on the retention of implant-cemented metal copings. Material and methods Two abutments of the same system with the same indications, height and the total occlusal convergence, but of different designs were evaluated. Ten RN synOcta abutments (Straumann, Waltham, MA) and ten RN titanium solid abutments (Straumann, Waltham, MA) were tightened to 35 Ncm on 20 implant analogs previously placed in resin blocks. Twenty plastic burnout copings were waxed, included, cast and machined by a single operator...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28638769/deeper-insight-into-the-six-step-domino-reaction-of-aldehydes-with-malononitrile-and-evaluation-of-antiviral-and-antimalarial-activities-of-the-obtained-bicyclic-products
#12
Christina M Bock, Gangajji Parameshwarappa, Simon Bönisch, Walter Bauer, Corina Hutterer, Maria Leidenberger, Oliver Friedrich, Manfred Marschall, Barbara Kappes, Andreas Görling, Svetlana B Tsogoeva
The straightforward and efficient synthesis of complex aza- and carbobicyclic compounds, which are of importance for medicinal chemistry, is a challenge for modern chemical methodology. An unprecedented metal-free six-step domino reaction of aldehydes with malononitrile was presented in our previous study to provide, in a single operation, these bicyclic nitrogen-containing molecules. Presented here is a deeper investigation of this atom-economical domino process by extending the scope of aldehydes, performing post-modifications of domino products, applying bifunctional organocatalysts and comprehensive NMR studies of selected domino products...
June 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28632147/crossover-iliofemoral-bypass-graft-through-tension-free-abdominal-wall-repair-mesh
#13
Mircea Muresan, Ovidiu Jimborean, Gabriela Jimborean, Radu Neagoe, Serban Bancu, Muresan Simona, Cristian Borz
INTRODUCTION: In vascular surgery the crossover iliofemoral bypass grafting is a well-known surgical technique. In general surgery the repair of an abdominal defect using a Polypropylene mesh is also a standard procedure. A particular technique is defined by the performance of these 2 separate procedures inside a single operation in which the crossover arterial graft is directed from the retroperitoneal space toward the contra-lateral femoral bifurcation through a Polypropylene mesh which closes the musculoaponeurotic layers of the abdominal wall...
June 8, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28631868/manganese-i-catalyzed-regio-and-stereoselective-1-2-diheteroarylation-of-allenes-combination-of-c-h-activation-and-smiles-rearrangement
#14
Shi-Yong Chen, Xiang-Lei Han, Jia-Qiang Wu, Qingjiang Li, Yunyun Chen, Honggen Wang
Heteroarenes are important structural motif in functional molecules. A Mn(I) -catalyzed 1,2-diheteroarylation of allenes via a C-H activation/Smiles rearrangement cascade is presented. The reaction occurred under additive-free or even solvent-free conditions, which allowed the creation of two C-C and one C-N bonds in a single operation. A series of structurally diverse bicyclic or tricyclic compounds bearing an exocyclic double bond were constructed in good to excellent efficiency. The decarboxylative ring-opening of the products led to the facile synthesis of vicinal biheteroaryls...
June 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28604089/comparison-of-articaine-and-lidocaine-for-buccal-infiltration-after-inferior-alveolar-nerve-block-for-intraoperative-pain-control-during-impacted-mandibular-third-molar-surgery
#15
Geraldo Prisco da Silva-Junior, Liane Maciel de Almeida Souza, Francisco Carlos Groppo
In order to compare the efficacy of lidocaine and articaine for pain control during third molar surgery, 160 patients presenting bilateral asymptomatic impacted mandibular third molars were selected. They received 1.8 mL of 2% lidocaine with epinephrine 1:100,000 during inferior alveolar nerve block. In group 1 (n = 80), an infiltrative injection of 0.9 mL of 2% lidocaine with epinephrine 1:100,000 was performed in buccal-distal mucosa of the third molar. Group 2 (n = 80) received 0.9 mL of 4% articaine with epinephrine 1:100,000 in the contralateral side...
2017: Anesthesia Progress
https://www.readbyqxmd.com/read/28598614/enantio-and-diastereoselective-spiroketalization-catalyzed-by-chiral-iridium-complex
#16
James Y Hamilton, Simon L Rössler, Erick M Carreira
Iridium-(P,olefin) complex-catalyzed enantio- and diastereoselective formation of substituted spiroketals from racemic, allylic carbonates is reported, which enables the installation of multiple stereogenic centers in a single operation. The protocol was effective for the preparation of a collection of spiroketals of various ring sizes and substituents, including heteroatoms with high enantio- and diastereoselectivity. Furthermore, cascade reactions that couple this enantio- and diastereoselective transformation to additional reversible processes have been achieved to exert concomitant stereocontrol over additional stereogenic centers...
June 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28598288/implant-patient-compliance-varies-by-periodontal-treatment-history
#17
Blerina Zeza, Andrea Pilloni, Dimitris N Tatakis, Angelo Mariotti, GianLuca Di Tanna, Claudio Mongardini
BACKGROUND: This retrospective study aimed to assess the compliance to supportive periodontal therapy (SPT) of implant treated patients with different periodontitis history and the possible influence of their compliance on peri-implant marginal bone level. MATERIAL AND METHODS: Dental records of 106 patients treated with at least one dental implant were reviewed. A single operator who did not provide care to the patients recorded the following during the first year of implant function (first year of follow-up), during the first 5 years of follow-up and during the entire follow-up duration: (a) number of recalls; (b) compliance, calculated from registered attendance; (c) periodontal disease history; (d) peri-implant radiographic bone level from most recent examination; and (e) clinical parameters: probing pocket depth (PPD) and bleeding on probing (BOP)...
June 9, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28586601/outcome-of-two-column-acetabular-fractures-treated-operatively-through-single-posterior-approach
#18
Muhammad Naeem Ur Razaq, Muhammad Ayaz Khan, Abbas Ali
BACKGROUND: Involvement of both columns in acetabular fractures is a common presentation; these fractures create a challenging situation for the surgeons in terms of understanding the dimensions of osseous injury and selection of surgical approach. The study was done with an objective to evaluate the efficacy of single posterior approach for acetabular fractures involving both columns directly reducing the posterior wall and column and indirectly reducing the anterior column. METHODS: An evaluation of 25 adult patients 18 male and 7 female presenting in the accident and emergency department of Khyber Teaching Hospital from December 2013 to June 2015 having acetabular fracture involving both the anterior and posterior column were included in this case series study...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28562734/simultaneous-meningioma-and-brain-metastasis-from-renal-cell-carcinoma-a-rare-presentation-case-report
#19
Aline Lariessy Campos Paiva, João Luiz Vitorino Araujo, Vinícius Ricieri Ferraz, José Carlos Esteves Veiga
CONTEXT: Brain metastases are the most common tumors of the central nervous system. Because of their high frequency, they may be associated with rare situations. Among these are tumor-to-tumor metastasis and an even a rarer situation called simultaneous brain tumors, which are more related to primary tumors of the reproductive and endocrine systems. CASE REPORT: A 56-year-old male patient with a history of renal cell carcinoma (which had previously been resected) presented with a ventricular lesion (suggestive of metastatic origin) and simultaneous olfactory groove lesion (probably a meningioma)...
May 29, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28561572/access-to-perfluoroalkyl-substituted-enones-and-indolin-2-ones-via-multicomponent-pd-catalyzed-carbonylative-reactions
#20
Hongfei Yin, Troels Skrydstrup
A simple method for accessing perfluoroalkyl-substituted enones is described applying a four-component palladium-catalyzed carbonylative coupling of aryl boronic acids together with terminal alkynes and perfluoroalkyl iodides in the presence of carbon monoxide. A wide range of highly functionalized enones can thus be prepared in a single operation in good yields. With 2-aminophenylalkynes, an intramolecular aminocarbonylation event overrules providing the indolin-2-one framework. Finally, adaptation of the two-chamber technology expands the method to the synthesis of the aforementioned structures with (13)C-isotope labeling...
June 8, 2017: Journal of Organic Chemistry
keyword
keyword
112568
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"