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https://www.readbyqxmd.com/read/28224425/mechanism-of-dynamic-near-infrared-fluorescence-cholangiography-of-extrahepatic-bile-ducts-and-applications-in-detecting-bile-duct-injuries-using-indocyanine-green-in-animal-models
#1
Yang Gao, Min Li, Zi-Fang Song, Le Cui, Bi-Rong Wang, Xiao-Ding Lou, Tao Zhou, Yong Zhang, Qi-Chang Zheng
Fluorescence intraoperative cholangiography (IOC) is a potential alternative for identifying anatomical variation and preventing iatrogenic bile duct injuries by using the near-infrared probe indocyanine green (ICG). However, the dynamic process and mechanism of fluorescence IOC have not been elucidated in previous publications. Herein, the optical properties of the complex of ICG and bile, dynamic fluorescence cholangiography and iatrogenic bile duct injuries were investigated. The emission spectrum of ICG in bile peaked at 844 nm and ICG had higher tissue penetration...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28214217/malignant-tumors-associated-with-ovarian-mature-teratoma-a-single-institution-experience
#2
Levent Trabzonlu, Guray Durmaz, Cigdem Vural, Bahar Muezzinoglu, Aydin Corakci
OBJECTIVE: The aims of this study are to present demographical features of cases diagnosed with malignant tumor associated with ovarian mature teratoma and to analyze histopathological features and clinical follow up of these tumors. STUDY DESIGN: Single-institution retrospective charts were reviewed to identify all cases of ovarian mature teratoma diagnosed from 1998 to 2015. Clinicopathological parameters that were analyzed include age, tumor size, tumor stage, histological type, laterality, IOC diagnosis and whether or not patient has received adjuvant chemotherapy...
January 22, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28174126/accuracy-of-asge-high-risk-criteria-in-evaluation-of-patients-with-suspected-common-bile-duct-stones
#3
Huiqin He, Chenfei Tan, Jiaguo Wu, Ning Dai, Weiling Hu, Yawen Zhang, Loren Laine, James Scheiman, John J Kim
BACKGROUND AND AIMS: Endoscopic retrograde cholangiopancreatography (ERCP) is recommended for patients considered high-risk for choledocholithiasis after biochemical testing and abdominal ultrasound. Our aim was to determine whether American Society for Gastrointestinal Endoscopy (ASGE) guidelines accurately select patients where the risk of ERCP is justified. METHODS: Consecutive patients hospitalized with suspected choledocholithiasis at Sir Run Run Shaw Hospital who received biochemical testing, abdominal ultrasound, and definitive testing for choledocholithiasis (magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound (EUS), ERCP, intraoperative cholangiogram (IOC), common bile duct (CBD) exploration) were identified...
February 4, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28145925/anatomical-study-of-the-infraorbital-nerve-and-surrounding-structures-for-the-surgery-of-orbital-floor-fractures
#4
YongSeok Nam, Sujin Bahk, SuRak Eo
The infraorbital nerve (ION) can easily be damaged by orbital trauma and periorbital surgical manipulations, due to its abutment to the orbital floor. Anatomic variability of the ION and surrounding structures has infrequently been documented. The aim of this study is to give precise anatomical knowledge about the ION with surrounding structures, to avoid iatrogenic injury of the ION during periorbital procedures.Forty orbits of 40 skull subjects (20 males and 20 females) were studied to analyze structures around the ION...
January 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28144745/intraoperative-colonoscopy-for-the-assessment-and-prevention-of-anastomotic-leakage-in-low-anterior-resection-for-rectal-cancer
#5
Seung Yoon Yang, Jeonghee Han, Yoon Dae Han, Min Soo Cho, Hyuk Hur, Kang Young Lee, Nam Kyu Kim, Byung Soh Min
PURPOSE: Anastomotic leakage (AL) after stapled anastomosis in rectal cancer surgery is a major concern. Various types of intraoperative anastomotic air leakage tests (ALTs) have been proposed to reduce AL. This study aimed to evaluate the impact of intraoperative colonoscopy (IOC) as an intraoperative ALT in low anterior resection for rectal cancer. METHODS: A total of 1266 patients were retrospectively reviewed. Among them, 215 patients who underwent IOC as an ALT in rectal cancer surgery were identified...
January 31, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28130115/strategies-that-athletes-use-to-avoid-detection-of-androgenic-anabolic-steroid-doping-and-sanctions
#6
Hussain Alquraini, Richard J Auchus
Androgenic-anabolic steroids (AAS) are potent and widely used performance-enhancing substances (PES). Since the International Olympic Committee (IOC) began testing athletes for AAS in the 1970s, athletes and their teams have endeavored to beat the system to avoid doping violations and/or sanctions derived from positive test results. This review will discuss the strategies used to avoid detection based on the pharmacology, biochemistry, and genetics of AAS metabolism and testing principles. Another strategy used is to dope with testosterone under the guise that the athlete has a true medical condition that requires testosterone treatment, using the therapeutic use exemption (TUE) mechanism...
January 24, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28093301/protocol-driven-management-of-suspected-common-duct-stones
#7
Anthony Manning, Richard Frazee, Stephen Abernathy, Claire Isbell, Travis Isbell, Justin Regner, Yolanda Munoz Maldanado, Randall Smith
INTRO: Common duct stones can be diagnosed by magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound/endoscopic retrograde cholangiopancreatography (EUS/ERCP), and intra-operative cholangiogram (IOC). In 2015, our group adopted a standard approach of preoperative EUS/ERCP followed by laparoscopic cholecystectomy for patients with an admission bilirubin over 4.0 (mg/dL). For bilirubin less than 4.0, laparoscopic cholecystectomy with IOC was the initial procedure. Post-operative EUS/ERCP with endoscopic sphincterotomy was pursued for positive IOC...
January 13, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28029219/defining-the-tipping-point-in-surgical-performance-for-laparoscopic-donor-nephrectomy-among-transplant-surgery-fellows-a-risk-adjusted-cumulative-summation-learning-curve-analysis
#8
O K Serrano, A S Bangdiwala, D M Vock, D Berglund, T B Dunn, E B Finger, T L Pruett, A J Matas, R Kandaswamy
The United Network for Organ Sharing recommends that fellowship-trained surgeons participate in 15 laparoscopic donor nephrectomy (LDN) procedures to be considered proficient. The American Society of Transplant Surgeons (ASTS) mandates 12 LDNs during an abdominal transplant surgery fellowship. We performed a retrospective intraoperative case analysis to create a risk-adjusted cumulative summation (RACUSUM) model to assess the learning curve of novice transplant surgery fellows (TSFs). Between January 2000 and December 2014, 30 novice TSFs participated in the organ procurement rotation of our ASTS-approved abdominal transplant surgery fellowship...
December 28, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/28028405/complications-of-laparoscopic-cholecystectomy-our-experience-from-a-retrospective-analysis
#9
Miodrag Radunovic, Ranko Lazovic, Natasa Popovic, Milorad Magdelinic, Milutin Bulajic, Lenka Radunovic, Marko Vukovic, Miroslav Radunovic
AIM: The aim of this study was to evaluate the intraoperative and postoperative complications of laparoscopic cholecystectomy, as well as the frequency of conversions. MATERIAL AND METHODS: Medical records of 740 patients who had laparoscopic cholecystectomy were analysed retrospectively. We evaluated patients for the presence of potential risk factors that could predict the development of complications such as age, gender, body mass index, white blood cell count and C-reactive protein (CRP), gallbladder ultrasonographic findings, and pathohistological analysis of removed gallbladders...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/27992066/assessing-the-bioaccumulation-potential-of-ionizable-organic-compounds-current-knowledge-and-research-priorities
#10
REVIEW
James M Armitage, Russell J Erickson, Till Luckenbach, Carla A Ng, Ryan S Prosser, Jon A Arnot, Kristin Schirmer, John W Nichols
The objective of the present study was to review the current knowledge regarding the bioaccumulation potential of ionizable organic compounds (IOCs), with a focus on the availability of empirical data for fish. Aspects of the bioaccumulation potential of IOCs in fish that can be characterized relatively well include the pH dependence of gill uptake and elimination, uptake in the gut, and sorption to phospholipids (membrane-water partitioning). Key challenges include the lack of empirical data for biotransformation and binding in plasma...
November 7, 2016: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/27986260/utility-of-mrcp-in-clinical-decision-making-of-suspected-choledocholithiasis-an-institutional-analysis-and-literature-review
#11
Wesley R Badger, Andrew J Borgert, Kara J Kallies, Shanu N Kothari
BACKGROUND: The ideal treatment algorithm for suspected choledocholithiasis is not yet well defined. Imaging options include magnetic resonance cholangiopancreatography (MRCP), endoscopic retrograde cholangiopancreatography (ERCP), and intraoperative cholangiogram (IOC). MRCP is diagnostic, while the other two modalities can also be therapeutic. Each of these modalities for diagnosis and treatment carries its own set of risks, benefits, and institutional costs. We hypothesized that there would be a significant difference between the biochemical profiles and characteristics of patients who undergo ERCP vs...
December 1, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27934284/which-molecular-features-affect-the-intrinsic-hepatic-clearance-rate-of-ionizable-organic-chemicals-in-fish
#12
Yi Chen, Joop L M Hermens, Michiel T O Jonker, Jon A Arnot, James M Armitage, Trevor Brown, John W Nichols, Kellie A Fay, Steven T J Droge
Greater knowledge of biotransformation rates for ionizable organic compounds (IOCs) in fish is required to properly assess the bioaccumulation potential of many environmentally relevant contaminants. In this study, we measured in vitro hepatic clearance rates for 50 IOCs using a pooled batch of liver S9 fractions isolated from rainbow trout (Oncorhynchus mykiss). The IOCs included four types of strongly ionized acids (carboxylates, phenolates, sulfonates, and sulfates), three types of strongly ionized bases (primary, secondary, tertiary amines), and a pair of quaternary ammonium compounds (QACs)...
December 6, 2016: Environmental Science & Technology
https://www.readbyqxmd.com/read/27933720/autogenous-bone-grafting-for-treatment-of-osseous-defect-after-impacted-mandibular-third-molar-extraction-a-randomized-controlled-trial
#13
Jing Ge, Chi Yang, Jiawei Zheng, Yingkai Hu
BACKGROUND: Extraction of impacted mandibular third molar (M3) has been cited as causing osseous defect at the distal aspect of the adjacent second molar (M2). PURPOSE: This randomized controlled trial was aimed to evaluate the effect of autogenous bone grafting in situ for regeneration of periodontal osseous defect distal to the M2 compared with non-grafting after impacted M3 removal. MATERIALS AND METHODS: A total of 60 sites in 51 adult patients were enrolled and randomly assigned to the control group or the test group...
December 8, 2016: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/27912114/remediation-of-cr-vi-by-inorganic-organic-clay
#14
Suramya I Rathnayake, Wayde N Martens, Yunfei Xi, Ray L Frost, Godwin A Ayoko
Application of inorganic-organic clays (IOCs) for the remediation of hexavalent chromium (Cr (VI)) and the effect of bisphenol-A (BPA) were investigated. IOCs were better adsorbents for the removal of Cr (VI) than organoclay. Solution pH significantly affected the surface charge of IOCs and speciation of Cr in the solution; hence, the adsorption of Cr onto IOCs. Pseudo-second order model and Langmuir model were the best fit for the kinetics and equilibrium data, indicating chemisorption and formation of monolayer on homogenous adsorption sites, respectively...
March 15, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27900197/research-priorities-of-international-sporting-federations-and-the-ioc-research-centres
#15
Caroline F Finch, Scott Talpey, Ashley Bradshaw, Torbjorn Soligard, Lars Engebretsen
BACKGROUND/AIM: To be fully effective, the prevention of injury in sport and promotion of athlete's health needs to be both targeted and underpinned by scientific evidence. This study aimed to identify the research priorities of International Sporting Federation (ISFs) compared to the current research focus of the International Olympic Committee Research Centres (IOC-RCs). METHODS: Online survey of ISF Medical Chairpersons (n=22, 69% response) and IOC-RC Directors (n=7, 78% response)...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27879256/determination-and-regulation-of-body-composition-in-elite-athletes
#16
Peter Sonksen
In 2011, the International Association of Athletics Federations (IAAF) and IOC introduced a 'hyperandrogenism' rule that excluded women with a serum testosterone >10 nmol/L from participating in elite sport. This rule was based on the false premise that the greater lean body mass in men was a consequence of their higher serum testosterone. This rule did not have scientific backing and the Court of Arbitration for Sport subsequently rescinded the rule following an appeal from an Indian athlete barred from the Commonwealth Games...
November 22, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27863870/fast-and-slow-adsorption-of-carbamazepine-on-biochar-as-affected-by-carbon-structure-and-mineral-composition
#17
Jian Chen, Di Zhang, Huang Zhang, Saikat Ghosh, Bo Pan
The influence of carbon structure and mineral composition of biochar on fast adsorption and slow adsorption of ionic organic contaminants (IOCs) is still unclear. This study used carbamazepine (CBZ) as adsorbate, peanut-shell-derived biochars produced at different charred temperatures, and the corresponding acid-washed biochars as adsorbents, to investigate the adsorption kinetics as affected by carbon structure and mineral composition of biochar. The adsorption of CBZ on amorphous (loose) carbon was lower than aromatic (condensed) carbon, but the former mainly contributed to the fast adsorption of CBZ...
February 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27862627/perceived-impact-of-cancer-among-adolescents-and-young-adults-relationship-with-health-related-quality-of-life-and-distress
#18
O Husson, B Zebrack
OBJECTIVE: To examine whether perceptions of the impact of cancer are related to health-related quality of life (HRQoL) and psychological distress among survivors of cancer in adolescence and young adulthood (AYA). METHODS: 173 AYA cancer survivors (aged 18-35 years and 15-29 years at time of diagnosis) completed a mailed survey assessing impact of cancer (IOC-AYA), HRQoL (SF-36), and distress (BSI-18). Hierarchical linear regression models analyzed the independent effects of perceived impacts of cancer on HRQoL and distress after controlling for clinical and socio-demographic characteristics...
November 8, 2016: Psycho-oncology
https://www.readbyqxmd.com/read/27857966/endoscopic-versus-laparoscopic-treatment-for-choledocholithiasis-a-prospective-randomized-controlled-trial
#19
Javier Ernesto Barreras González, Rafael Torres Peña, Julián Ruiz Torres, Miguel Ángel Martínez Alfonso, Raúl Brizuela Quintanilla, Maricela Morera Pérez
Background and study aims: Overall, 5 % to 15 % of patients undergoing cholecystectomy for cholelithiasis have concomitant bile duct stones, and the incidence of choledocholithiasis increases with age. There is no clear consensus on the best therapeutic approach (endoscopic versus surgical). Patients and methods: A prospective randomized controlled clinical trial was performed to compare three treatment options for patients with choledocholithiasis at the National Center for Minimally Invasive Surgery in Havana, Cuba from November 2007 to November 2011...
November 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27844236/biliary-tract-visualization-using-near-infrared-imaging-with-indocyanine-green-during-laparoscopic-cholecystectomy-results-of-a-systematic-review
#20
S L Vlek, D A van Dam, S M Rubinstein, E S M de Lange-de Klerk, L J Schoonmade, J B Tuynman, W J H J Meijerink, M Ankersmit
BACKGROUND: Near-infrared imaging with indocyanine green (ICG) has been extensively investigated during laparoscopic cholecystectomy (LC). However, methods vary between studies, especially regarding patient selection, dosage and timing. The aim of this systematic review was to evaluate the potential of the near-infrared imaging technique with ICG to identify biliary structures during LC. METHODS: A comprehensive systematic literature search was performed. Prospective trials examining the use of ICG during LC were included...
November 14, 2016: Surgical Endoscopy
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