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https://www.readbyqxmd.com/read/28430806/incidence-and-risk-factors-for-post-penetrating-keratoplasty-glaucoma-a-systematic-review-and-meta-analysis
#1
Suqian Wu, Jianjiang Xu
OBJECTIVES: To establish the incidence and risk factors for post penetrating keratoplasty glaucoma (PKKG). METHODS: Studies published between 1947 and 2016 regarding penetrating keratoplasty (PK) were identified using an electronic search and reviewed. For search purpose, PKKG was defined as ocular hypertension (> 21mmHg) after PK. The incidence and risk factors of PKKG were extracted for all studies. Pooled incidence, odd ratios (ORs) and 95% confidence intervals (CIs) were calculated...
2017: PloS One
https://www.readbyqxmd.com/read/28428609/socket-preservation
#2
L Fee
Socket preservation maintains bone volume post-extraction in anticipation of an implant placement or fixed partial denture pontic site. This procedure helps compensate for the resorption of the facial bone wall. Socket preservation should be considered when implant placement needs to be delayed for patient or site-related reasons. The ideal healing time before implant placement is six months. Socket preservation can reduce the need for later bone augmentation. By reducing bone resorption and accelerating bone formation it increases implant success and survival...
April 21, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28428081/intraoperative-image-guidance-compared-with-free-hand-methods-in-adolescent-idiopathic-scoliosis-posterior-spinal-surgery-a-systematic-review-on-screw-related-complications-and-breach-rates
#3
Andrew Chan, Eric Parent, Karl Narvacan, Cindy San, Edmond Lou
BACKGROUND CONTEXT: Severe adolescent idiopathic scoliosis (AIS) is a 3D spinal deformity requiring surgery to stop curve progression. Posterior spinal instrumentation and fusion with pedicle screws is the standard surgery for AIS curve correction. Vascular and neurologic complications related to screw-malpositioning are concerns in surgeries for AIS. Breach rates are reported at 15.7%, implant-related complications at 1.1% and neurologic deficit at 0.8%. Free-hand screw insertion remains the prevailing method of screw placement while image guidance has been suggested to improve placement accuracy...
April 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28427417/novel-trigenic-cacna1c-des-mypn-mutations-in-a-family-of-hypertrophic-cardiomyopathy-with-early-repolarization-and-short-qt-syndrome
#4
Yanhong Chen, Hector Barajas-Martinez, Dongxiao Zhu, Xihui Wang, Chonghao Chen, Ruijuan Zhuang, Jingjing Shi, Xueming Wu, Yijia Tao, Weidong Jin, Xiaoyan Wang, Dan Hu
BACKGROUND: Hypertrophic cardiomyopathy (HCM) patients with early repolarization (ER) pattern are at higher risk of ventricular arrhythmia, yet the genetic background of this situation has not been well investigated. Here we report novel trigenic mutations detected in a Chinese family of obstructive HCM with ER and short QT syndrome (SQTS). METHODS: Proband and family members underwent detailed medical assessments. DNAs were extracted from peripheral blood leukocytes for genetic screening with next generation method...
April 20, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28340095/non-laser-percutaneous-extraction-of-pacemaker-and-defibrillation-leads-a-decade-of-progress
#5
Giulia Domenichini, Hanney Gonna, Rajan Sharma, Sergio Conti, Lorenzo Fiorista, Sue Jones, Maria Arthur, Shaumik Adhya, Marjan Jahangiri, Edward Rowland, Mark M Gallagher
Aims: Non-laser-based methods are safe in lead extraction but in the past have been less effective than laser methods. In the past decade, new equipment has been introduced including the Evolution® Mechanical Dilator Sheath and the Evolution® RL. We sought to determine the impact of new equipment on outcome in mechanical lead extraction. Methods and results: We considered 288 consecutive patients (age 66 ± 18 years) who underwent transvenous lead extraction (TLE) of 522 leads in the decade to the end of 2014...
March 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28337731/arthroplasty-registries-around-the-world-valuable-sources-of-hip-implant-revision-risk-data
#6
REVIEW
Richard E Hughes, Aditi Batra, Brian R Hallstrom
PURPOSE OF REVIEW: National and regional arthroplasty registries have proliferated since the Swedish Knee Arthroplasty Register was started in 1975. Registry reports typically present implant-specific estimates of revision risk and patient- and technique-related factors that can inform clinical decision-making about implants and techniques. However, annual registry reports are long and it is difficult for clinicians to extract comparable revision risk data. Since implants may appear in multiple registry reports, it is even more difficult to gather relevant data for clinical decision-making about implant selection...
March 23, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28333394/socket-shield-technique-for-immediate-implant-placement-clinical-radiographic-and-volumetric-data-after-5%C3%A2-years
#7
Daniel Bäumer, Otto Zuhr, Stephan Rebele, Markus Hürzeler
OBJECTIVES: Implant placement immediately after tooth extraction is often accompanied by resorption of surrounding tissues. A clinical technique was developed where the buccal portion of the root is retained to preserve the periodontal ligament and bundle bone. This technique is based on animal studies showing the potential to preserve the facial tissues utilizing this approach. The purpose of this study was to gain more insight regarding the safety of the technique with regard to biological and implant-related long-term complications and to observe the clinical appearance of the peri-implant tissues...
March 23, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28327692/immediate-immediate-delayed-6%C3%A2-weeks-and-delayed-4%C3%A2-months-post-extractive-single-implants-1-year-post-loading-data-from-a-randomised-controlled-trial
#8
Marco Esposito, Giovanni Zucchelli, Gioacchino Cannizzaro, Luigi Checchi, Carlo Barausse, Anna Trullenque-Eriksson, Pietro Felice
PURPOSE: To compare the clinical outcome of single implants placed immediately after tooth extraction with implants placed 6 weeks after tooth extraction (immediate-delayed placement), and with implants placed after 4-month extraction and socket healing (delayed placement). MATERIALS AND METHODS: Two-hundred and ten (210) patients requiring a single implant-supported crown to replace a tooth to be extracted were randomised to receive immediate post-extractive implants (70 patients), immediate-delayed implants at 6 weeks (70 patients), and delayed implants after 4 months of healing (70 patients) according to a parallel group design...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28323880/randomized-controlled-trials-in-central-vascular-access-devices-a-scoping-review
#9
Mari Takashima, Gillian Ray-Barruel, Amanda Ullman, Samantha Keogh, Claire M Rickard
BACKGROUND: Randomized controlled trials evaluate the effectiveness of interventions for central venous access devices, however, high complication rates remain. Scoping reviews map the available evidence and demonstrate evidence deficiencies to focus ongoing research priorities. METHOD: A scoping review (January 2006-December 2015) of randomized controlled trials evaluating the effectiveness of interventions to improve central venous access device outcomes; including peripherally inserted central catheters, non-tunneled, tunneled and totally implanted venous access catheters...
2017: PloS One
https://www.readbyqxmd.com/read/28321477/total-knee-arthroplasty-after-varus-distal-femoral-osteotomy-vs-native-knee-similar-results-in-a-case-control-study
#10
Romain Gaillard, Timothy Lording, Sebastien Lustig, Elvire Servien, Philippe Neyret
PURPOSE: The aim of this study was to investigate the results of total knee arthroplasty (TKA) performed after varus distal femoral osteotomy (VrDFO), in comparison to a control group of TKAs performed as the primary intervention for arthrosis. Main hypothesis was that the medium term results for the two groups would be similar. METHODS: All TKAs performed after VrDFO were extracted from a single centre, prospective database of 4046 arthroplasties. A case-control study was performed with a control group comprising two TKAs performed as the primary intervention for each TKA after VrDFO, and matched for sex, age at intervention, body mass index, the type of arthrosis and the type of implant...
March 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28296198/mechanical-and-microstructural-analysis-of-a-radially-expandable-vascular-conduit-for-neonatal-and-pediatric-cardiovascular-surgery
#11
Abigail E Loneker, Samuel K Luketich, Doug Bernstein, Arush Kalra, Alan W Nugent, Antonio D'Amore, Denver M Faulk
In pediatric cardiovascular surgery, there is a significant need for vascular prostheses that have the potential to grow with the patient following implantation. Current clinical options consist of nonexpanding conduits, requiring repeat surgeries as the patient outgrows the device. To address this issue, PECA Labs has developed a novel ePTFE vascular conduit with the capability of being radially expanded via balloon catheterization. In the described study, a systematic characterization and comparison of two proprietary ePTFE expandable conduits was conducted...
March 10, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28294200/four-year-post-loading-results-of-full-arch-rehabilitation-with-immediate-placement-and-immediate-loading-implants-a-retrospective-controlled-study
#12
Alain Simonpieri, Roberta Gasparro, Giuseppe Pantaleo, Jolanda Mignogna, Francesco Riccitiello, Gilberto Sammartino
OBJECTIVES: The aim of this study was to evaluate implant survival rate and to measure peri-implant bone changes in fullarch rehabilitations with immediate placement and immediate loading implants with platform switching and Morse taper connection, in addition to platelet-rich fibrin (PRF) and buccal bone augmentation, after 4 years of follow-up. METHOD AND MATERIALS: In this retrospective controlled study, patients who had been fully rehabilitated with immediate placement and immediate loading implants were evaluated 4 years post-loading...
March 14, 2017: Quintessence International
https://www.readbyqxmd.com/read/28263862/a-novel-method-for-segmenting-and-aligning-the-pre-and-post-implantation-scaffolds-of-resorbable-calcium-phosphate-bone-substitutes
#13
Ahmed Sweedy, Marc Bohner, G Harry van Lenthe, Gamal Baroud
Micro-computed tomography (microCT) is commonly used to characterize the three-dimensional structure of bone graft scaffolds before and after implantation in order to assess changes occurring during implantation. The accurate processing of the microCT datasets of explanted β-tricalcium phosphate (β-TCP) scaffolds poses significant challenges because of (a) the overlap in the grey values distribution of ceramic remnants, bone, and soft tissue, and of (b) the resorption of the bone substitute during the implantation...
March 2, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28261083/automatic-and-precise-localization-and-cortical-labeling-of-subdural-and-depth-intracranial-electrodes
#14
Chaoyi Qin, Zheng Tan, Yali Pan, Yanyan Li, Lin Wang, Liankun Ren, Wenjing Zhou, Liang Wang
Object: Subdural or deep intracerebral electrodes are essential in order to precisely localize epileptic zone in patients with medically intractable epilepsy. Precise localization of the implanted electrodes is critical to clinical diagnosing and treatment as well as for scientific studies. In this study, we sought to automatically and precisely extract intracranial electrodes using pre-operative MRI and post-operative CT images. Method: The subdural and depth intracranial electrodes were readily detected using clustering-based segmentation...
2017: Frontiers in Neuroinformatics
https://www.readbyqxmd.com/read/28255547/unexpected-challenging-case-of-coronary-sinus-lead-extraction
#15
Luca Bontempi, Donatella Tempio, Raffaella De Vito, Manuel Cerini, Francesca Salghetti, Niccolò Dasseni, Clara Villa, Abdallah Raweh, Lorenza Inama, Francesca Vassanelli, Mario Luzi, Antonio Curnis
An 84-year-old woman implanted with cardiac resynchronization therapy defibrillator underwent transvenous lead extraction 4 mo after the implant due to pocket infection. Atrial and right ventricular leads were easily extracted, while the attempt to remove the coronary sinus (CS) lead was unsuccessful. A few weeks later a new extraction procedure was performed in our center. A stepwise approach was used. Firstly, manual traction was unsuccessfully attempted, even with proper-sized locking stylet. Secondly, mechanical dilatation was used with a single inner sheath placed close to the CS ostium...
February 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28240546/high-purity-magnesium-staples-suppress-inflammatory-response-in-rectal-anastomoses
#16
Jiazeng Xia, Hui Chen, Jun Yan, Hongliu Wu, Hao Wang, Jian Guo, Xiaonong Zhang, Shaoxiang Zhang, Changli Zhao, Yigang Chen
Magnesium-based materials are promising biodegradable implants, although the impact of magnesium on rectal anastomotic inflammation is poorly understood. Thus, we investigated the inflammatory effects of high-purity Mg staples in rectal anastomoses by in vivo luciferase reporter gene expression in transgenic mice, hematoxylin-eosin staining, immunohistochemistry, and Western blotting. As expected, strong IL-1β-mediated inflammation and inflammatory cell infiltration were observed 1 day after rectal anastomoses were stapled with high-purity Mg or Ti...
March 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28228727/post-operative-bleeding-risk-in-dental-surgery-for-patients-on-oral-anticoagulant-therapy-a-meta-analysis-of-observational-studies
#17
Quan Shi, Juan Xu, Tong Zhang, Bin Zhang, Hongchen Liu
Background and Objective: Minor dental surgery is invasive and hemorrhagic. Thus, in patients treated with anticoagulants, the bleeding risk related to these invasive procedures is concerning. The aim of this meta-analysis is to evaluate this risk by comparing the post-operative bleeding rates of oral anticoagulation treatment (OAT) patients (without interrupted or altered anticoagulant intake) with non-OAT patients. Methods: PubMed, Embase and the Cochrane Library were searched for eligible studies that compared the post-operative (following minor dental surgery) bleeding rates of OAT patients without interrupted or altered therapy with those of non-OAT patients...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28208900/fuchs-heterochromic-iridocylitis-clinical-characteristics-and-outcome-of-cataract-extraction-with-intra-ocular-lens-implantation-in-a-kashmiri-population-a-hospital-based-study
#18
Wasim Rashid, Imtiyaz Lone, Adil Majid Mir, Aamir Rashid, Mehreen Latif
INTRODUCTION: Fuchs Heterochromic Iridocylitis (FHI) is a rare form of uveitis which is frequently complicated by cataract and glaucoma, but it does not show typical features of uveitis like pain, redness and posterior synechia. AIM: To study the clinical characteristics and outcome of cataract extraction with Intra Ocular Lens (IOL) implantation in patients with FHI. MATERIALS AND METHODS: The present prospective study was carried out in the Postgraduate Department of Ophthalmology, Sher-i-Kashmir Institute of Medical Sciences (SKIMS), Bemina from March 2012 to January 2015...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28198543/deformation-of-the-zurich-cementless-acetabular-cup-caused-by-implantation-in-a-canine-cadaver-model
#19
Geoffrey D Panjeton, Stanley E Kim, Kelvin Chang, Lindsey S Palm, Peter G Ifju
OBJECTIVE: To evaluate the change in geometry of the Zurich total hip arthroplasty (THA) acetabular component after implantation. ANIMALS: Hemipelves from adult mix-breed dogs weighing between 20 and 25 kg. METHODS: Digital image correlation imaging was performed prior to, immediately after, and 24 hours after impaction of Zurich THA acetabular component, and after removal of the cup from the specimen. Patterns of deformation were qualitatively described, and maximal deformations were compared between time points...
April 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28168420/immediate-post-extraction-implants-with-or-without-pure-platelet-rich-plasma-a-5-year-follow-up-study
#20
Silvio Taschieri, Alessandra Lolato, Moses Ofer, Tiziano Testori, Luca Francetti, Massimo Del Fabbro
PURPOSE: The purpose of this study was comparison of clinical and radiographic outcomes of immediate post-extraction implants with or without the use of pure platelet-rich plasma (P-PRP) in the short- and medium-term follow-up. METHODS: A retrospective analysis was performed to assess soft tissue healing, implant and prosthesis survival, marginal bone level changes and biological complications. RESULTS: A total of 109 partially edentulous patients with 126 implants were included in this analysis...
February 7, 2017: Oral and Maxillofacial Surgery
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