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https://www.readbyqxmd.com/read/28444010/three-dimensional-evaluation-of-alveolar-bone-changes-in-response-to-different-rapid-palatal-expansion-activation-rates
#1
Brian LaBlonde, Manuel Lagravere Vich, Paul Edwards, Katherine Kula, Ahmed Ghoneima
INTRODUCTION: The aim of this multi-center retrospective study was to quantify the changes in alveolar bone height and thickness after using two different rapid palatal expansion (RPE) activation protocols, and to determine whether a more rapid rate of expansion is likely to cause more adverse effects, such as alveolar tipping, dental tipping, fenestration and dehiscence of anchorage teeth. METHODS: The sample consisted of pre- and post-expansion records from 40 subjects (age 8-15 years) who underwent RPE using a 4-banded Hyrax appliance as part of their orthodontic treatment to correct posterior buccal crossbites...
February 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28440742/leptin-overexpression-in-bone-marrow-stromal-cells-promotes-periodontal-regeneration-in-a-rat-model-of-osteoporosis
#2
Baoyu Zheng, Jun Jiang, Yuling Chen, Minkui Lin, Zhibin Du, Yin Xiao, Kai Luo, Fuhua Yan
BACKGROUND: Osteoporosis (OP) is associated with widespread periodontitis and impaired periodontal healing. However, there is a lack of information about the outcomes of regenerative approaches under the influence of OP. This study investigated the effect of leptin (LEP) overexpression on the regenerative potential of bone marrow stromal cells (BMSCs) in an osteoporotic rat periodontal fenestration defect model. METHODS: Rat BMSCs were transfected with adenoviruses harboring the human (h) LEP gene...
April 25, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28440736/levistilide-a-inhibits-angiogenesis-in-liver-fibrosis-via-vascular-endothelial-growth-factor-signaling-pathway
#3
Zhi-Min Zhao, Hong-Liang Liu, Xin Sun, Tao Guo, Li Shen, Yan-Yan Tao, Cheng-Hai Liu
Levistilide A (C24H28O4, molecular weight = 380.48) derived from Angelica sinensis (Danggui) has been reported to inhibit hepatic stellate cell proliferation. This study investigated the effects of levistilide A on liver fibrosis relating to angiogenesis, particularly on the characteristic change in liver sinusoidal endothelial cells. LX-2 cells were activated by TGF-β1, and the human hepatic sinusoidal endothelial cells (HHSECs) were induced by endothelial cell growth supplement. Cell viability was detected using a methylthiazoldiphenyl-tetrazolium bromide assay; F-actin was visualized through the fluorescence probe method; cell proliferation was examined using the EdU kit; antiangiogenesis activity was assessed using the tube formation assay and transgenic zebrafish model...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28439694/modifications-to-a-3d-printed-temporal-bone-model-for-augmented-stapes-fixation-surgery-teaching
#4
Yann Nguyen, Elisabeth Mamelle, Daniele De Seta, Olivier Sterkers, Daniele Bernardeschi, Renato Torres
Functional outcomes and complications in otosclerosis surgery are governed by the surgeon's experience. Thus, teaching the procedure to residents to guide them through the learning process as quickly as possible is challenging. Artificial 3D-printed temporal bones are replacing cadaver specimens in many institutions to learn mastoidectomy, but these are not suitable for middle ear surgery training. The goal of this work was to adapt such an artificial temporal bone to aid the teaching of otosclerosis surgery and to evaluate this tool...
April 24, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28435674/the-three-rs-recruitment-retention-and-residence-of-leukocytes-in-the-liver
#5
REVIEW
Hayley A McNamara, Ian A Cockburn
The composition of leukocytes in the liver is highly distinct from that of the blood and lymphoid organs. In particular, the liver is highly enriched in non-conventional T cells such as natural killer T (NKT) cells, γδ T cells and mucosal-associated invariant T cells. In addition, there are significant populations of tissue-resident NK cells (or innate lymphoid cells (ILC1)) and memory CD8(+) T cells. These cells are joined in conditions of inflammation by neutrophils, monocytes and macrophages. In recent years a multitude of studies have generated insights into how these cells arrest, move and remain resident in the liver...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28434592/fenestrated-and-branched-endovascular-aortic-repair-has-reached-a-state-of-maturity
#6
EDITORIAL
Stéphan Haulon
No abstract text is available yet for this article.
May 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28434546/surgical-strategy-toward-biventricular-repair-for-severe-ebstein-anomaly-in-neonates-and-infancy
#7
Shu-Chien Huang, En-Ting Wu, Shyh-Jye Chen, Chi-Hsiang Huang, Jin-Chung Shih, Hen-Wen Chou, Chung-I Chang, Ing-Sh Chiu, Yih-Sharng Chen
BACKGROUND: Neonates with severe forms of Ebstein anomaly present a surgical challenge, and the Starnes operation as single ventricle palliation is highly advocated. Cone reconstruction for tricuspid valvuloplasty (TVP) has become a widely accepted technique, although very few cases of TVP have been reported in neonates. This report describes a surgical strategy for neonatal Ebstein anomaly, with an aim toward biventricular repair. METHODS: Since 2007, 7 neonates or young infants with severe Ebstein anomalies have received TVP at the National Taiwan University Hospital, Taipei, Taiwan...
April 20, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28432073/in-situ-laser-fenestration-is-a-feasible-method-for-revascularization-of-aortic-arch-during-thoracic-endovascular-aortic-repair
#8
Jinbao Qin, Zhen Zhao, Ruihua Wang, Kaichuang Ye, Weimin Li, Xiaobing Liu, Guang Liu, Chaoyi Cui, Huihua Shi, Zhiyou Peng, Fukang Yuan, Xinrui Yang, Min Lu, Xintian Huang, Mier Jiang, Xin Wang, Minyi Yin, Xinwu Lu
BACKGROUND: Reconstruction of the aortic major branches during thoracic endovascular aortic repair is complicated because of the complex anatomic configuration and variation of the aortic arch. In situ laser fenestration has shown great potential for the revascularization of aortic branches. This study aims to evaluate the feasibility, effectiveness, and safety of in situ laser fenestration on the three branches of the aortic arch during thoracic endovascular aortic repair. METHODS AND RESULTS: Before clinical application, the polytetrafluoroethylene and Dacron grafts were fenestrated by an 810-nm laser system ex vivo, which did not damage the bare metal portion of the endografts and created a clean fenestration while maintaining the integrity of the endografts...
April 21, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28428522/-surgeon-modified-fenestrated-thoracic-endovascular-aortic-repair-for-the-treatment-of-aortic-aneurysm
#9
Kenichi Hashizume, Hideyuki Shimizu
Thoracic endovascular aortic repair( TEVAR) for thoracic aortic aneurysm has been established as a 1st-line therapy, especially in high-risk cases, with device improvements and the appearance of various procedures, but there are still cases of anatomical adaptation. On the other hand, several countermeasures have been developed, but there are no commercially available devices for fenestrated or branched stent grafts in Japan. Moreover, complications such as cerebral infarction, organ ischemia and bypass occlusion and infection are pointed out in popular debranch TEVAR...
April 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28401629/a-1-470%C3%A2-nm-diode-laser-in-stapedotomy-mechanical-thermal-and-acoustic-effects
#10
Simone P C Koenraads, Tjeerd de Boorder, Wilko Grolman, Digna M A Kamalski
BACKGROUND AND OBJECTIVES: Multiple laser systems have been investigated for their use in stapes surgery in patients with otosclerosis. The diode 1,470 nm laser used in this study is an attractive laser system because it is easily transported and relatively inexpensive in use. This wavelength has relative high absorption in water. This study aimed to investigate the mechanical, thermal, and acoustic effects of the diode 1,470 nm laser on a stapes in an inner ear model. MATERIALS AND METHODS: Experiments were performed in an inner ear model including fresh frozen human stapes...
April 11, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28401533/long-term-follow-up-of-fenestrated-endovascular-repair-for-juxtarenal-aortic-aneurysm
#11
I N Roy, A M Millen, S M Jones, S R Vallabhaneni, J R H Scurr, R G McWilliams, J A Brennan, R K Fisher
BACKGROUND: Fenestrated endovascular aneurysm repair (FEVAR) is increasingly being used for juxtarenal aortic aneurysms. The aim of this study was to review long-term results and assess the importance of changing stent-graft design on outcomes. METHODS: This was a retrospective review of all patients who underwent FEVAR within a single unit over 12 years (February 2003 to December 2015). Kaplan-Meier analysis of survival, and freedom from target vessel loss, aneurysm expansion, graft-related endoleak and secondary intervention was performed...
April 12, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28400227/effectiveness-of-intraventricular-endoscopic-lamina-terminalis-fenestration-in-comparison-with-standard-etv-a-systematic-review-of-the-literature
#12
REVIEW
Carlo Giorgio Giussani, Lelio Guida, Andrea Trezza, Erik Pietro Sganzerla
No abstract text is available yet for this article.
April 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28392947/nuclear-imaging-to-detect-diaphragmatic-perforation-as-a-rare-complication-of-microwave-ablation
#13
Stephanie Cull, Gebran Khneizer, Abhishek Krishna, Razi Muzaffar, Sameer Gadani, Zafar Jamkhana
Acquired diaphragmatic perforation leading to massive hepatic hydrothorax and respiratory failure is a rare complication of microwave ablation (MWA) of hepatocellular carcinoma (HCC). Imaging modalities to detect pleuroperitoneal communication remain poorly described. We report a nuclear imaging technique used to efficiently diagnose and locate diaphragmatic defects. A 57-year-old male with cirrhosis and HCC presented with respiratory distress after undergoing MWA of a HCC lesion. He was admitted to the intensive care unit for noninvasive positive pressure ventilator support...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28391023/third-ventricular-cerebrospinal-fluid-cysts-of-thalamic-origin-review-of-embryological-origin-presentation-and-management-strategies-with-a-case-series
#14
REVIEW
Ciro A Vasquez, Michael Casey, Zach Folzenlogen, D Ryan Ormond, Kevin Lillehei, A Samy Youssef
OBJECTIVE: Third ventricular cerebrospinal fluid (CSF) cysts of thalamic origin are very rare. The objective of this study is to review their possible pathogenesis, clinical presentation and management strategies with a case series describing management via an endoscopic approach with fenestration using a single burr hole technique. METHODS: A systematic literature review of reported cases of thalamic cysts was conducted with further meta-analysis of CSF cysts that involve the third ventricle...
April 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28390918/dynamic-geometric-analysis-of-the-renal-arteries-and-aorta-following-complex-endovascular-aneurysm-repair
#15
Brant W Ullery, Ga-Young Suh, John J Kim, Jason T Lee, Ronald L Dalman, Christopher P Cheng
INTRODUCTION: Aneurysm regression and target vessel patency during early and mid-term follow-up may be related to the effect of stent graft configuration on the anatomy. We quantified geometry and remodeling of the renal arteries and aneurysm following fenestrated (F-) or snorkel/chimney (Sn-) endovascular aneurysm repair (EVAR). METHODS: 29 patients (mean age, 76.8±7.8 years) treated with F- or Sn-EVAR underwent computed tomography angiography at pre-op, post-op, and follow-up...
April 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28390917/thoracic-endovascular-aortic-repair-into-the-false-lumen-in-chronic-aortic-dissection
#16
Arnoud V Kamman, David M Williams, Himanshu J Patel
PURPOSE: We present two different cases of chronic aortic dissection, where we opted to land the stent graft into the false lumen to treat the associated aneurysm. CASE DESCRIPTIONS: For the first case, the goal of thoracic endovascular aortic repair (TEVAR) was to exclude the aneurysm from within the false lumen, because of a slit-like true lumen. In the second case, the visceral arteries came off the false lumen, with the renal vessels from the true lumen. False lumen TEVAR was performed and the infra-renal aorta fenestrated, as to ensure adequate perfusion...
April 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28390774/surgeon-leadership-in-the-coding-billing-and-contractual-negotiations-for-fenestrated-endovascular-aortic-aneurysm-repair-increases-medical-center-contribution-margin-and-physician-reimbursement
#17
Francesco Aiello, Jonathan Durgin, Vijaya Daniel, Louis Messina, Danielle Doucet, Jessica Simons, James Jenkins, Andres Schanzer
BACKGROUND: Fenestrated endovascular aneurysm repair (FEVAR) allows endovascular treatment of thoracoabdominal and juxtarenal aneurysms previously outside the indications of use for standard devices. However, because of considerable device costs and increased procedure time, FEVAR is thought to result in financial losses for medical centers and physicians. We hypothesized that surgeon leadership in the coding, billing, and contractual negotiations for FEVAR procedures will increase medical center contribution margin (CM) and physician reimbursement...
April 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28390767/management-and-outcomes-of-carotid-artery-extension-of-aortic-dissections
#18
Adriana Laser, Charles B Drucker, Donald G Harris, Tanya Flohr, Shahab Toursavadkohi, Rajabrata Sarkar, Bradley Taylor, Robert S Crawford
BACKGROUND: Aortic dissection (AD) is the most common aortic catastrophe. Carotid artery dissection due to extension of AD (CAEAD) is one severe complication of this condition. Despite years of refinement in the techniques for repair of AD, the optimal management strategy for CAEAD remains yet to be described. We hypothesized that CAEAD eventually resolves on antiplatelet therapy with a low but not insignificant risk of cerebrovascular accident (CVA). METHODS: This was a single-institution retrospective review of patients admitted with nontraumatic coincident aortic and carotid dissection between 2001 and 2013...
April 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28389876/augmented-reality-in-intraventricular-neuroendoscopy
#19
T Finger, A Schaumann, M Schulz, Ulrich-W Thomale
BACKGROUND: Individual planning of the entry point and the use of navigation has become more relevant in intraventricular neuroendoscopy. Navigated neuroendoscopic solutions are continuously improving. OBJECTIVE: We describe experimentally measured accuracy and our first experience with augmented reality-enhanced navigated neuroendoscopy for intraventricular pathologies. PATIENTS AND METHODS: Augmented reality-enhanced navigated endoscopy was tested for accuracy in an experimental setting...
April 7, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28389292/laparoscopic-transarterial-embolization-of-type-ii-endoleak-after-branched-fenestrated-thoracoabdominal-aortic-aneurysm-endovascular-repair
#20
Gian Franco Fadda, Holta Kasemi, Costantino Luca Di Angelo, Carlo De Nisco, Francesco Balestra, Antonio Cruccu, Mario Marino
Type II endoleak is the most frequent procedure-related complication during endovascular aneurysm exclusion. Actually there is little controversy in the management of type I and III endoleak, while type II endoleak still generates conflicting reports about their timing and type of treatment. Currently, the intervention is needed only in case of sac enlargement, but not in case of persistent endoleak alone. We report the case of a 77 year-old man treated with a custom-made branched/fenestrated endograft for a type III thoracoabdominal aortic aneurysm...
April 4, 2017: Annals of Vascular Surgery
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