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https://www.readbyqxmd.com/read/29780296/metal-artifact-reduction-for-orthopedic-implants-brain-ct-angiography-in-patients-with-intracranial-metallic-implants
#1
Leonard Sunwoo, Sun-Won Park, Jung Hyo Rhim, Yeonah Kang, Young Seob Chung, Young-Je Son, Soo Chin Kim
Background: The purpose of this study was to qualitatively and quantitatively evaluate the effects of a metal artifact reduction for orthopedic implants (O-MAR) for brain computed tomographic angiography (CTA) in patients with aneurysm clips and coils. Methods: The study included 36 consecutive patients with 47 intracranial metallic implants (42 aneurysm clips, 5 coils) who underwent brain CTA. The computed tomographic images with and without the O-MAR were independently reviewed both quantitatively and qualitatively by two reviewers...
May 21, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29757858/classification-of-foreign-body-reactions-due-to-industrial-silicone-injection
#2
Ago Harlim, Mpu Kanoko, Siti Aisah
BACKGROUND: A foreign body reaction (FBR) is a typical tissue response to a biomaterial that has been injected or implanted in human body tissue. There has been a lack of data on the classification of foreign body reaction to silicone injection, which can describe the pattern of body tissue responses to silicone. OBJECTIVE: Determine the foreign body reaction to silicone injection. METHOD: We modified the classification proposed by Duranti and colleagues, which has categorized a FBR to hyaluronic acid injection into a new classification of an FBR to silicone injection...
April 24, 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29753668/continuous-erector-spinae-plane-block-as-an-effective-analgesic-option-in-anticoagulated-patients-after-left-ventricular-assist-device-implantation-a-case-series
#3
Sanjib Das Adhikary, Amit Prasad, Behzad Soleimani, Ki Jinn Chin
No abstract text is available yet for this article.
April 12, 2018: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29747366/-a-multicenter-study-of-the-effectiveness-and-safety-of-toric-intraocular-lens-implantation
#4
X D Song, Y S Hao, Y Z Bao, Z H Li, H Zhang, A Y Yu, M S Zhao, Y S Huang, J Fang, Y Liu, N L Wang
Objective: To evaluate the effectiveness and safety of Proming(®)Toric intraocular lens (IOL) in adults with cataract combined with corneal regular astigmatism. Methods: Multicentre, randomized, open and positive parallel controlled clinical study. A total of 121 patients (121 eyes) who had cataract combined with corneal regular astigmatism and met the inclusion criteria were enrolled in 9 hospitals from May 2014 to May 2016. There were 45 males and 76 females and the median age was 71 (42-88) years old. A total of 121 patients (121 eyes) were randomly assigned to the study group and the control group through the Central Randomization System...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29747365/-a-preliminary-observation-of-implanting-a-double-eyelet-capsular-tension-ring-in-eyes-with-serious-lens-subluxation
#5
B Zhang, Y Q Huang, Q Z Cao, J Q Lin, Y Y Wang, D Y Zheng
Objective: To evaluate the clinical efficiency of an iris hook combined with a modified double-eyelet capsular tension ring (MCTR) in the treatment of serious lens subluxation. Methods: Retrospective case series. A total of 16 patients (20 eyes) with serious lens subluxation were enrolled in Zhongshan Ophthalmic Center from March 2016 to December 2016. All the patients had an iris hook inserted to support the capsule during the phacoemulsification. Then an MCTR was implanted and sutured onto the sclera. Both intraoperative and postoperative complications, such as posterior capsular opacification and macular edema, were recorded...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29747364/-to-exercise-caution-in-developing-intraocular-lens-exchange
#6
X D Song, X Z Wang, J Qian
Nowadays cataract extraction combined intraocular lens (IOL) implantation has become the conventional treatment for cataract. Numbers of IOL exchange after cataract extraction combined IOL implantation have been increasing in recent years. As a non-routine surgery, IOL exchange is normally combined with other surgeries and accompanied by some complications to various extents. Is IOL exchange necessary for all abnomal IOLs? Can IOL exchange be avoided? How to avoid IOL exchange? The purpose of this article is to stress the importance of indication of IOL exchange and how to avoid IOL exchange...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29747363/-value-the-correction-of-corneal-astigmatism-in-cataract-surgery
#7
J Wang, Y X Cao
The aim of modern micro-incision phacoemulsification combined with foldable intraocular lens implantation and femtosecond laser-assisted cataract surgery is evolving from a simple pursuit of recuperation to a refractive procedure, which involves the correction of ametropia according to preoperative and postoperative refractive conditions, especially corneal astigmatism, in order to achieve the goal of optimized postoperative uncorrected full range of vision. Nowadays, due attention to the effect of preoperative corneal astigmatism, surgery-induced astigmatism and residual astigmatism after operation is lacked, which affect postoperative visual acuity significantly...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29745966/status-of-cardiac-arrhythmia-services-in-africa-in-2018-a-pascar-sudden-cardiac-death-task-force-report
#8
M A Talle, A Bonny, W Scholtz, A Chin, G Nel, K M Karaye, J B Anzouan-Kacou, A Damasceno, Y R Lubenga, M U Sani, B M Mayosi
BACKGROUND: There is limited information on the availability of health services to treat cardiac arrhythmias in Africa. METHODS: The Pan-African Society of Cardiology (PASCAR) Sudden Cardiac Death Task Force conducted a survey of the burden of cardiac arrhythmias and related services over two months (15 October to 15 December) in 2017. An electronic questionnaire was completed by general cardiologists and electrophysiologists working in African countries. The questionnaire focused on availability of human resources, diagnostic tools and treatment modalities in each country...
March 2018: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29742937/does-metal-porosity-affect-metal-ion-release-in-blood-and-urine-following-total-hip-arthroplasty-a-short-term-study
#9
Alessandro Bistolfi, Andrea Cimino, Gwo-Chin Lee, Riccardo Ferracini, Giovanni Maina, Paola Berchialla, Giuseppe Massazza, Alessandro Massè
INTRODUCTION: The surface area of exposed metal in a trabecular-titanium acetabular component is wider compared to traditional-titanium implants. The purpose of this study is to establish if this increase in surface area can lead to a significant increase in systemic metal levels. METHODS: 19 patients with conventional acetabular component and 19 with trabecular-titanium cup were compared. Aluminum, Vanadium and Titanium in blood and urine were assessed before surgery and at intervals for 2 years...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29728657/major-ocular-trauma-in-taiwan-2002-2004-versus-2012-2014
#10
Yi-Sheng Chang, Yu-Ti Teng, Yi-Hsun Huang, Mei-Ling Liu, Jia-Horung Hung, Sheng-Min Hsu, Fu-Chin Huang, Min-Hsiu Shih, Wan-Ju Chen, Chun-Chieh Lai, Shu-Fang Hsiao, Shih-Hao Wang, Sung-Huei Tseng
We investigated the temporal changes in major eye injuries in Taiwan by reviewing the medical records of all patients with ocular trauma hospitalized at the National Cheng Kung University Hospital during 2002-2004 and 2012-2014. A total of 169 eyes (161 patients) during 2002-2004 and 121 eyes (120 patients) during 2012-2014 were enrolled (mean ± SD age: 41.9 ± 20.8 years in 2002-2004, and 51.8 ± 19.3 years in 2012-2014). Males accounted for ~75% of patients. The most frequent injury-causing object was metallic material (~24%), and blunt traumas were most frequently attributable to traffic accidents and falls...
May 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29706223/three-dimensional-mandibular-regional-superimposition-in-growing-patients
#11
Tung Nguyen, Lucia Cevidanes, Lorenzo Franchi, Antonio Ruellas, Tate Jackson
INTRODUCTION: The aims of this study were to identify stable mandibular structures in 3 dimensions in growing patients using a regional implant technique and to test the reproducibility of mandibular regional superimposition in 3 dimensions using the regions identified. METHODS: Three-dimensional voxel-based regional mandibular registrations were performed on bone plates, and screws were placed in the anterior chin and symphysis regions of 20 growing patients (mean age, 12...
May 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29697589/dexamethasone-implant-for-diabetic-macular-edema-in-naive-compared-with-refractory-eyes-the-international-retina-group-real-life-24-month-multicenter-study-the-irgrel-dex-study
#12
Matias Iglicki, Catharina Busch, Dinah Zur, Mali Okada, Miriana Mariussi, Jay Kumar Chhablani, Zafer Cebeci, Samantha Fraser-Bell, Voraporn Chaikitmongkol, Aude Couturier, Ermete Giancipoli, Marco Lupidi, Patricio J Rodríguez-Valdés, Matus Rehak, Adrian Tien-Chin Fung, Michaella Goldstein, Anat Loewenstein
PURPOSE: To investigate efficacy and safety of repeated dexamethasone (DEX) implants over 24 months, in diabetic macular edema (DME) eyes that were treatment naive compared with eyes refractory to anti-vascular endothelial growth factor treatment, in a real-life environment. METHODS: This multicenter international retrospective study assessed best-corrected visual acuity and central subfield thickness (CST) of naive and refractory eyes to anti-vascular endothelial growth factor injections treated with dexamethasone implants...
April 24, 2018: Retina
https://www.readbyqxmd.com/read/29685130/cataract-surgery-in-patients-with-corneal-opacities
#13
Yi-Ju Ho, Chi-Chin Sun, Hung-Chi Chen
BACKGROUND: Investigating the efficacy and safety of phacoemulsification with intraocular lens (IOL) implantation in corneal opacities. METHODS: This retrospective study was conducted in a tertiary medical center. Twenty-three eyes of 19 patients with cataracts and corneal opacities obscuring the pupillary center having received phacoemulsification with IOL insertion without any ancillary techniques were enrolled. The primary study outcome measures were uncorrected and best corrected visual acuity (BCVA), and complications...
April 23, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29682884/durable-engraftment-of-genetically-modified-fviii-secreting-autologous-bone-marrow-stromal-cells-in-the-intramedullary-microenvironment
#14
Sze Sing Lee, Jaichandran Sivalingam, Ajit J Nirmal, Wai Har Ng, Irene Kee, In Chin Song, Chin Yong Kiong, Kristoffer A Gales, Frederic Chua, Edgar M Pena, Bryan E Ogden, Oi Lian Kon
Genetically modified FVIII-expressing autologous bone marrow-derived mesenchymal stromal cells (BMSCs) could cure haemophilia A. However, culture-expanded BMSCs engraft poorly in extramedullary sites. Here, we compared the intramedullary cavity, skeletal muscle, subcutaneous tissue and systemic circulation as tissue microenvironments that could support durable engraftment of FVIII-secreting BMSC in vivo. A zinc finger nuclease integrated human FVIII transgene into PPP1R12C (intron 1) of culture-expanded primary canine BMSCs...
April 23, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29682262/unicystic-ameloblastoma-rehabilitation-with-chin-graft-harvested-and-implant-supported-fixed-prosthesis
#15
J Sanz-Alonso, N Martínez-Rodríguez, M Martín-Ares, C Barona-Dorado, J Cortés Bretón-Brinkmann, J M Martínez-González
Objective: The objective is to present a clinical case of a 38-year-old male with a maxillary unicystic ameloblastoma treated by means of tumor block resection followed by chin-harvested graft placement in order to place two dental implants for esthetic and functional rehabilitation. Methods: Ameloblastoma is a benign odontogenic tumor characterized by local aggression and a high rate of recurrence; the latter partly depends on how it is treated. Complete resection of the tumor, which usually prevents recurrence, produces bone defects of varying size that must be reconstructed later on...
October 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29626696/fine-tuning-pro-angiogenic-effects-of-cobalt-for-simultaneous-enhancement-of-vascular-endothelial-growth-factor-secretion-and-implant-neovascularization
#16
Yoke Chin Chai, Luis Freitas Mendes, Nick van Gastel, Geert Carmeliet, Frank P Luyten
Rapid neovascularization of a tissue-engineered (TE) construct by the host vasculature is quintessential to warrant effective bone regeneration. This process can be promoted through active induction of angiogenic growth factor secretion or by implementation of in vitro pre-vascularization strategies. In this study, we aimed at optimizing the pro-angiogenic effect of Cobalt (Co2+ ) to enhance vascular endothelial growth factor (VEGF) expression by human periosteum-derived mesenchymal stem cells (hPDCs). Simultaneously we set out to promote microvascular network formation by co-culturing with human umbilical vein endothelial cells (HUVECs)...
April 4, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29617931/robotic-mitral-valve-replacements-with-bioprosthetic-valves-in-52-patients-experience-from-a-tertiary-referral-hospital
#17
Chia-Cheng Kuo, Hsiao-Huang Chang, Chung-Hsi Hsing, Hiong-Ping Hii, Nan-Chun Wu, Chin-Ming Hsu, Chun-I Chen, Bor-Chih Cheng
OBJECTIVES: Robotic mitral valve replacement (MVR) emerged in the late 1990s as an alternative approach to conventional sternotomy. With the increased use of bioprosthetic valves worldwide and strong patient desire for minimally invasive procedures, the safety and feasibility of robotic MVRs with bioprosthetic valves require investigation. METHODS: Between January 2013 and May 2017, 52 consecutive patients underwent robotic MVRs using the da Vinci Si surgical system (Intuitive Surgical Inc...
March 30, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29606290/does-prior-bariatric-surgery-affect-implant-survivorship-and-complications-following-primary-total-hip-arthroplasty-total-knee-arthroplasty
#18
Gwo-Chin Lee, Kevin Ong, Doruk Baykal, Edmund Lau, Arthur L Malkani
BACKGROUND: The purpose of this study is to evaluate the impact of prior bariatric surgery on survivorship, outcome, and complications following primary total hip arthroplasty (THA)/total knee arthroplasty (TKA). METHODS: Using the Medicare 5% part B data from 1999 to 2012, we analyzed patients who underwent primary THA (n = 47,895) and primary TKA (n = 86,609). Patients with prior bariatric surgery before arthroplasty were compared to patients with other common metabolic conditions...
February 8, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29576579/resonance-frequency-analysis-of-miniscrew-implant-stability
#19
Yu-Chuan Tseng, Chin-Yun Pan, Pao-Hsin Liu, Yi-Hsin Yang, Hong-Po Chang, Chun-Ming Chen
This study used resonance frequency (RF) analysis to assess miniscrew implant (MSI) stability during wound healing in a sample of 68 patients (41 women, 27 men; mean age, 27.7 years). The 104 MSIs included 66 placements in the buccal shelf (BS; 2.0 × 12 mm) and 38 placements in interradicular (IR; 1.5 × 8 mm) sites. Thirteen (12.5%) of the MSIs failed. A new RF detection device was used to measure RF at baseline (T0) and at 3 (T1), 6 (T2), 9 (T3), 12 (T4), and 15 (T5) weeks after placement. A linear mixed-effects model was fitted to change in RF values...
2018: Journal of Oral Science
https://www.readbyqxmd.com/read/29567713/lymph-node-metastases-can-invade-local-blood-vessels-exit-the-node-and-colonize-distant-organs-in-mice
#20
Ethel R Pereira, Dmitriy Kedrin, Giorgio Seano, Olivia Gautier, Eelco F J Meijer, Dennis Jones, Shan-Min Chin, Shuji Kitahara, Echoe M Bouta, Jonathan Chang, Elizabeth Beech, Han-Sin Jeong, Michael C Carroll, Alphonse G Taghian, Timothy P Padera
Lymph node metastases in cancer patients are associated with tumor aggressiveness, poorer prognoses, and the recommendation for systemic therapy. Whether cancer cells in lymph nodes can seed distant metastases has been a subject of considerable debate. We studied mice implanted with cancer cells (mammary carcinoma, squamous cell carcinoma, or melanoma) expressing the photoconvertible protein Dendra2. This technology allowed us to selectively photoconvert metastatic cells in the lymph node and trace their fate...
March 23, 2018: Science
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