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Sinus Implant

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https://www.readbyqxmd.com/read/28433356/aortic-sinus-flow-stasis-likely-in-valve-in-valve-transcatheter-aortic-valve-implantation
#1
Hoda Hatoum, Brandon L Moore, Pablo Maureira, Jennifer Dollery, Juan A Crestanello, Lakshmi Prasad Dasi
OBJECTIVE: Valve-in-valve procedures using transcatheter aortic valves are increasingly performed to treat degenerated bioprosthetic surgical aortic valves because they are less invasive than redo aortic valve replacement. The objective of this study is to quantify the changes in aortic sinus blood flow dynamics before and after a valve-in-valve procedure to gain insight into mechanisms for clinical and subclinical thrombosis of leaflets. METHODS: A detailed description of the sinus hemodynamics for valve-in-valve implantation was performed in vitro...
March 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28431133/prediction-of-sudden-and-non-sudden-cardiac-death-in-post-infarction-patients-with-reduced-left-ventricular-ejection-fraction-by-periodic-repolarization-dynamics-madit-ii-substudy
#2
Konstantinos D Rizas, Scott McNitt, Wolfgang Hamm, Steffen Massberg, Stefan Kääb, Wojciech Zareba, Jean-Philippe Couderc, Axel Bauer
Aims: To test the value of Periodic Repolarization Dynamics (PRD), a recently validated electrocardiographic marker of sympathetic activity, as a novel approach to predict sudden cardiac death (SCD) and non-sudden cardiac death (N-SCD) and to improve identification of patients that profit from ICD-implantation. Methods and results: We included 856 post-infarction patients with left-ventricular ejection fraction (LVEF) ≤30% of the MADIT-II trial in sinus rhythm...
April 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28431056/long-term-outcome-of-transvenous-pacemaker-implantation-in-infants-a-retrospective-cohort-study
#3
Laura M Vos, Janneke A E Kammeraad, Matthias W Freund, Andreas C Blank, Johannes M P J Breur
Aim: Evaluation of long-term outcome of transvenous pacemaker (PM) implantation in infants. Methods and Results: A retrospective analysis of all transvenous PM implantations in infants <10 kg between September 1997 and October 2001 was made. Indications for PM implantation, age at implantation, and determinants of long-term outcome including cardiac function, PM function, and PM (system) complications were noted. Seven patients underwent transvenous VVI(R) PM implantation...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28421875/three-dimensional-printing-and-its-applications-in-otorhinolaryngology-head-and-neck-surgery
#4
Trevor D Crafts, Susan E Ellsperman, Todd J Wannemuehler, Travis D Bellicchi, Taha Z Shipchandler, Avinash V Mantravadi
Objective Three-dimensional (3D)-printing technology is being employed in a variety of medical and surgical specialties to improve patient care and advance resident physician training. As the costs of implementing 3D printing have declined, the use of this technology has expanded, especially within surgical specialties. This article explores the types of 3D printing available, highlights the benefits and drawbacks of each methodology, provides examples of how 3D printing has been applied within the field of otolaryngology-head and neck surgery, discusses future innovations, and explores the financial impact of these advances...
November 1, 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28414673/purulent-pericarditis-due-to-an-infected-pacemaker-lead
#5
Teresa Backes
INTRODUCTION: Intravenous drug users have a substantially increased risk of infective endocarditis, especially in the setting of implanted cardiac devices. Purulent pericarditis is a rare occurrence that can occur iatrogenically or through direct or hematogenous spread. CASE DESCRIPTION: A 75 year old man with a past medical history significant for hepatitis C, IV drug abuse, and sick sinus syndrome status post pacemaker was brought in by EMS with a chief complaint of diaphoresis and chest pain...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413476/the-mechanism-of-human-%C3%AE-defensin-3-in-mrsa-induced-infection-of-implant-drug-resistant-bacteria-biofilm-in-the-mouse-tibial-bone-marrow
#6
Chen Zhu, Ni-Rong Bao, Shuo Chen, Jian-Ning Zhao
The mechanism of human β-defensin 3 (HBD-3) in methicillin-resistant Staphylococcus aureus (MRSA-induced infection of implant drug-resistant bacteria biofilm in the mouse tibial bone marrow was studied. Healthy adult male Sprague-Dawley rats with average weight of 230 g were selected to construct the infection model of MRSA-induced implant drug-resistant bacteria biofilm in the mouse left tibial bone marrow. The drugs were intraperitoneally injected after 24 h medullary cavity infection, and the experimental groups included the model group, HBD-3 group, and vancomycin group (20 rats in each group)...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28408125/influence-of-lateral-medial-sinus-width-on-no-grafting-inlay-osteotome-sinus-augmentation-outcomes
#7
Xiaohui Cheng, Xiucheng Hu, Shuangquan Wan, Xiachen Li, Yiming Li, Feilong Deng
PURPOSE: Intrasinus new bone formation (BF) has been observed after no-grafting osteotome sinus augmentation, and it is hypothesized to be influenced by the dimensions of the maxillary sinus. The aim of this clinical trial is to evaluate the influence of lateral-medial sinus width (SW) on no-grafting osteotome sinus augmentation outcomes using cone beam computed tomography. PATIENTS AND METHODS: All patients recruited for this prospective study were treated with no-grafting osteotome sinus augmentation with simultaneous implant placement...
March 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28407019/comparison-between-titanium-mesh-and-autogenous-iliac-bone-graft-to-restore-vertebral-height-through-posterior-approach-for-the-treatment-of-thoracic-and-lumbar-spinal-tuberculosis
#8
COMPARATIVE STUDY
Yongjian Gao, Yunsheng Ou, Qianxing Deng, Bin He, Xing Du, Jianxiao Li
OBJECT: To compare the clinical efficacy of titanium mesh cages and autogenous iliac bone graft to restore vertebral height through posterior approach in patients with thoracic and lumbar spinal tuberculosis. METHOD: 59 patients with spinal tuberculosis underwent interbody fusion and internal fixation through posterior approach in our department from January 2011 to December 2013. In group A, 34 patients obtained titanium mesh for the reconstruction of vertebral height, among them 25 patients (group A1) suffered from single-segment spinal tuberculosis, and 9 patients, (group A2) had multi-segment spinal tuberculosis...
2017: PloS One
https://www.readbyqxmd.com/read/28400315/permanent-his-bundle-pacing-for-cardiac-resychronization-therapy-initial-feasibility-study-in-lieu-of-left-ventricular-lead
#9
Olujimi A Ajijola, Gaurav Upadhyay, Carlos Macias, Kalyanam Shivkumar, Roderick Tung
BACKGROUND: Permanent His bundle pacing (HBP) has the potential to physiologically normalize wide QRS duration in patients with bundle branch block and cardiomyopathy. OBJECTIVE: To assess the feasibility of incorporating a His bundle lead for cardiac resychronization therapy (CRT) in lieu of a coronary sinus lead. METHODS: Patients with an indication for CRT (n=21) underwent attempted implantation of a HBP placed into the left ventricular (LV) lead port...
April 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28398556/prognosis-associated-with-redo-cardiac-resynchronization-therapy-following-complete-device-and-lead-extraction-due-to-device-related-infection
#10
Martin Seifert, Viviane Moeller, Anita Arya, Thomas Schau, Frank Hoelschermann, Christian Butter
Aims: An increase in the number of cardiac resynchronization therapy (CRT) device implantations worldwide has led to a consequent increase in the number of infections associated with the device, making extraction of the CRT device inevitable. Redo CRT implantation after treatment and recovery following device extraction is challenging. This study aimed to evaluate the success rate, complications, and long-term prognosis of redo CRT implantation, including the rates of subclavian, cava, and coronary sinus (CS) vein thrombosis as well as re-infection...
April 6, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28394443/noninvasive-predictors-of-perioperative-atrial-arrhythmias-in-patients-with-tetralogy-of-fallot-undergoing-pulmonary-valve-replacement
#11
Daniel Cortez, Waseem Barham, Emily Ruckdeschel, Nandita Sharma, Anthony C McCanta, Johannes von Alvensleben, William H Sauer, Kathryn K Collins, Joseph Kay, Sonali Patel, Duy T Nguyen
BACKGROUND: Patients with tetralogy of Fallot (TOF) have increased risk of atrial arrhythmias. HYPOTHESIS: A measure of atrial dispersion, the P-wave vector magnitude (Pvm), can identify patients at risk for perioperative atrial flutter (AFL) or intra-atrial re-entrant tachycardia (IART) in a large TOF cohort. METHODS: We performed a blinded, retrospective analysis of 158 TOF patients undergoing pulmonary valve replacement between 1997 and 2015...
April 10, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28392949/unusual-case-of-osseointegrated-dental-implant-migration-into-maxillary-sinus-removed-12-years-after-insertion
#12
Mauro Laureti, Nicola Ferrigno, Daniele Rosella, Piero Papi, Francesca Mencio, Francesca De Angelis, Giorgio Pompa, Stefano Di Carlo
Displacement of dental implants into the maxillary sinus is not an uncommon event in implant dentistry and may lead to serious complications, such as sinusitis. To avoid systemic problems, performing the removal of the foreign body as soon as possible is suggested. Despite the fact that early implants dislocation has been reported several times, late migration into maxillary sinus has been described by just a few studies. The purpose of this study was to report a rare case of dental implant migration into maxillary sinus after 12 years of function...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28391273/inverse-correlation-of-venous-brain-natriuretic-peptide-levels-with-body-mass-index-is-due-to-decreased-production
#13
Zubair Shah, Mark Wiley, Arun Mahankali Sridhar, Reza Masoomi, Mazda Biria, Dhananjay Lakkireddy, Buddhadeb Dawn, Kamal Gupta
OBJECTIVE: The aim of this paper was to study the association between body mass index (BMI) and coronary sinus (CS) brain natriuretic peptide (BNP) levels in patients with heart failure and reduced systolic function (HFrEF). BACKGROUND: There is an inverse relationship between systemic venous BNP (V-BNP) levels and BMI in patients with HFrEF. It is unclear whether this finding is due to decreased production or due to an increased metabolism of BNP. Since CS-BNP levels reflect BNP production, we hypothesized that assessing the correlation of CS-BNP levels with BMI would provide insight into the mechanism of this inverse relationship of V-BNP and BMI...
April 8, 2017: Cardiology
https://www.readbyqxmd.com/read/28389467/aorto-right-ventricular-fistula-following-transcatheter-aortic-valve-implantation-using-a-29-mm-sapien-xt-valve
#14
Kazuki Hagiwara, Naritatsu Saito, Kazuhiro Yamazaki, Takeshi Kimura
An 83-year-old man with severe symptomatic aortic valve stenosis underwent transcatheter aortic valve implantation (TAVI) using a 29 mm SAPIEN XT valve. He was haemodynamically stable, but developed haemolytic anaemia. Transthoracic echocardiography conducted 7 days after TAVI revealed an abnormal continuous flow from the right sinus of Valsalva adjacent to the implanted valve to the right ventricle. The amount of shunt flow was considered small and the patient was managed with diuretics successfully. He was discharged from the hospital 35 days after TAVI...
April 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28387248/mir-1827-inhibits-osteogenic-differentiation-by-targeting-igf1-in-msmscs
#15
ShuangXi Zhu, Wei Peng, Xiang Li, JunQuan Weng, Xing Zhang, JunBing Guo, DaiYing Huang, Qiong Rong, SongLing Chen
We recently reported that maxillary sinus membrane stem cells (MSMSCs) have osteogenic potential. However, the biological mechanisms of bone formation remain unclear. In this study, we investigated the role and mechanisms of microRNAs (miRNAs) in the osteogenic differentiation of MSMSCs. The expression of miRNAs was determined in differentiated MSMSCs by comprehensive miRNA microarray analysis and quantitative RT-PCR (qRT-PCR). We selected miR-1827 for functional follow-up studies to explore its significance in MSMSCs...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28385377/the-effects-of-modification-to-lateral-tunnel-fontan-procedure-for-prophylactic-arrhythmia-surgery
#16
Hong-Gook Lim, Jeong Ryul Lee, Yong Jin Kim
BACKGROUND: Refractory atrial arrhythmias and hemodynamic abnormalities are responsible for significant morbidity and mortality after the Fontan operation. We evaluated the long-term feasibility, safety, and efficacy of prophylactic atrial arrhythmia surgery performed concomitantly with the lateral tunnel Fontan operation. METHODS: From 1997 August to 2003 December, 27 patients underwent a initial lateral tunnel Fontan with an interventional atrial incision and cryoablation from the atriotomy to the coronary sinus and right atrioventricular valve annulus...
April 3, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28382627/volumetric-changes-of-grafted-volumes-and-the-schneiderian-membrane-after-transcrestal-and-lateral-sinus-floor-elevation-procedures-a-clinical-pilot-study
#17
Andy Temmerman, Jeroen Vandessel, Simone Cortellini, Reinhilde Jacobs, Wim Teughels, Marc Quirynen
AIM: To investigate the influence of various surgical techniques for sinus augmentation on the volumetric changes of graft, membrane and the post-operative discomfort. MATERIALS AND METHODS: Eighteen patients in need of bilateral sinus floor elevation (SFE) were assigned to lateral SFE, transcrestal SFE and Intralift procedures. CBCT images taken at baseline, 1week and 6 weeks were analysed for volumetric changes in graft and Schneiderian membrane. Questionnaires were used to analyse post-op discomfort...
April 6, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28382260/delayed-pacemaker-lead-perforations-why-unusual-presentations-should-prompt-an-early-multidisciplinary-team-approach
#18
John An Kuang Chao, Michael S Firstenberg
Our first case is an 84-year-old female diagnosed with sick sinus syndrome. She underwent implantation of dual chamber permanent pacemaker without complications. On the 8(th) day status-postimplantation, she returned to the emergency department (ED) with moderately severe left anterior chest pain and significant ecchymosis. She was given an initial diagnosis of shingles and discharged. Two days later, she returned to the ED with increasing chest pain, dyspnea, nausea, and vomiting. Lead migration and cardiac perforation was confirmed by chest X-ray and computed tomography (CT), respectively...
January 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/28381326/intrasinus-penetration-of-a-silastic-malar-implant-which-resulted-in-chronic-sinusitis-a-case-report-and-literature-review
#19
Luke Y Kim, Joseph S Schwartz, Bobby A Tajudeen, Nithin D Adappa, James N Palmer
BACKGROUND: Malar augmentation is a common cosmetic procedure utilizing silastic materials. We describe an uncommon complication of a silastic implant eroding into the anterior maxillary sinus wall resulting in chronic rhinosinusitis (CRS). METHODS: A literature review is presented describing the presentation, surgical management and outcome of this uncommon adverse event. RESULTS: An 80 year old female with a history of bilateral cosmetic malar implants placed approximately 25 years ago presented to our office with a 4-5 month history of left-sided symptoms consistent with chronic sinusitis, and was found to have intrasinus penetration of her left malar implant...
March 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28371501/therapeutic-outcomes-of-kalix-ii-in-treating-juvenile-flexible-flatfoot
#20
Le Cao, Xu-Dong Miao, Yong-Ping Wu, Xiang-Feng Zhang, Qiang Zhang
OBJECTIVES: To evaluate the therapeutic outcomes with Kalix II subtalar arthroereisis in sinus tarsi for juvenile flexible flatfoot. METHODS: A retrospective analysis of the data of 20 juveniles with symptomatic flexible flatfoot (27 feet) who underwent the Kalix II implant procedure from January 2008 to September 2012 was performed. The pain during daily activities was assessed and followed up by use of a standard 10-point visual analog scale (VAS), and function was evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) ankle and hindfoot scoring system, and anteroposterior talar-first metatarsal angle, lateral talar-first metatarsal angle, calcaneal pitch angle, and talar declination angle at X-ray film were measured to assess the therapeutic outcomes...
February 2017: Orthopaedic Surgery
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