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https://www.readbyqxmd.com/read/28650796/comparison-of-bovine-bone-autogenic-bone-mixture-versus-platelet-rich-fibrin-for-maxillary-sinus-grafting-histologic-and-histomorphologic-study
#1
Hakan Ocak, Nukhet Kutuk, Umut Demetoglu, Esra Balcıoglu, Saim Ozdamar, Alper Alkan
Numerous grafting materials have been used to augment the maxillary sinus floor for long-term stability and success for implant-supported prosthesis. To enhance bone formation, adjunctive blood-born growth factor sources have gained popularity during the recent years. The present study compared the use of platelet-rich fibrin (PRF) and bovine-autogenous bone mixture for maxillary sinus floor elevation. A split-face model was used to apply 2 different filling materials for maxillary sinus floor elevation in 22 healthy adult sheep...
June 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28650313/molecular-mechanisms-and-epidemiology-of-resistance-in-streptococcus-pneumoniae-in-the-middle-east-region
#2
Grace El Moujaber, Marwan Osman, Rayane Rafei, Fouad Dabboussi, Monzer Hamze
PURPOSE: Streptococcus pneumoniae is a commensal bacterium that normally colonizes the human nasopharyngeal cavity. Once disseminated, it can cause several diseases, ranging from non-invasive infections such as acute otitis media and sinusitis through to invasive infections with higher mortality, including meningitis and septicaemia. Since the identification of the first S. pneumoniae strain with decreased susceptibility to penicillin in the 1960s, antibiotic resistance among S. pneumoniae has increased disturbingly and the mechanisms of resistance have begun to unfold...
June 26, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28650277/attenuated-post-exercise-heart-rate-recovery-in-patients-with-systemic-lupus-erythematosus-the-role-of-disease-severity-and-beta-blocker-treatment
#3
P Bienias, M Ciurzyński, A Chrzanowska, I Dudzik-Niewiadomska, K Irzyk, K Oleszek, A Kalińska-Bienias, B Kisiel, W Tłustochowicz, P Pruszczyk
Objective Sinus tachycardia is frequently reported in systemic lupus erythematosus (SLE), while there are limited data on post-exercise ability to slow heart rate (i.e. heart rate recovery, HRR) in this group of patients. Methods We studied consecutive 70 patients with SLE and 30 healthy controls. All examined individuals underwent detailed clinical examination, echocardiography, Holter monitoring with heart rate variability and treadmill stress test using Bruce's protocol. HRR values were calculated as the difference between maximum HR during exercise and HR at the first (HRR1) and third (HRR3) minute of rest...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28650136/platform-switching-and-super-short-implants-an-effective-technique-to-manage-residual-jaws-bone-volume
#4
Graziano Montaruli, Michele Laurenziello, Lucio Lo Russo, Luigi Laino, Lorenzo Lo Muzio, Domenico Ciavarella
INTRODUCTION: Authors describe and analyze an implant-prosthetic rehabilitation of posterior partially edentulous jaw by using a super-short implant, according to the platform switching technique, on which a lithium disilicate made crown was cemented. METHODS: One event of partially edentulous jaw in 2.6 region needing implant-prosthetic rehabilitationwas selected for this treatment. Because of the lack of vertical bone, a super-short implant (6mm in diameter and 6mm in length) has been placed according to the platform switching technique by using surgical and prosthetic components lower in diameter compared to the diameter of the implant's platform...
June 23, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28648541/coronary-artery-anomalies-in-patients-with-transposition-of-the-great-arteries-and-their-impact-on-postoperative-outcomes
#5
Maciej Moll, Krzysztof W Michalak, Katarzyna Sobczak-Budlewska, Jadwiga A Moll, Marek Kopala, Konrad Szymczyk, Paweł Dryżek, Jacek J Moll
BACKGROUND: Coronary anomalies are frequently present in children with transposition of the great arteries (TGA). Such anomalies significantly increase the complexity of arterial switch operations and may have an effect on postoperative outcomes. In this study, we aimed to assess the frequency of coronary anomalies in children with TGA and describe their effect on postoperative outcomes. METHODS: All patients with TGA who underwent an arterial switch operation between 1991 and 2015 were consecutively enrolled in this study...
June 22, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28648534/promising-outcome-of-anatomic-correction-of-corrected-transposition-of-the-great-arteries
#6
Viktor Hraska, Mathieu Vergnat, Peter Zartner, Chris Hart, Phillip Suchowerskyj, Benjamin Bierbach, Ehrenfried Schindler, Martin Schneider, Boulos Asfour
BACKGROUND: Anatomic correction of corrected transposition of the great arteries with associated lesions, utilizing the morphologic left ventricle as a systemic pumping chamber, is the preferred method in many centers. The purpose of this study was to analyze functional outcome after anatomic correction. METHODS: Between Jan 1997 and May 2016, 63 patients with corrected transposition of the great arteries and associated lesions underwent anatomic correction. Forty-two patients (67%) underwent palliation before correction, including 14 patients (22%) who required training of systemic ventricle...
June 22, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28648024/-comparison-on-the-efficacy-and-safety-of-different-occlusion-devices-for-the-treatment-of-patients-with-patent-foramen-ovale
#7
W J Liu, Y S Zhang, G S Cheng, Y J Du, L He, X Y Wang, X M He
Objective: To compare the efficacy and safety of Cardi-O-fix patent foramen ovale (PFO) occluder and Amplatzer PFO occluder for the treatment of patients with PFO. Methods: A total of 246 consecutive patients (105 males and 141 females) with PFO were prospectively enrolled from May 30, 2013 to March 30, 2015 in our hospital. PFO interventional closure was applied according to the anatomical structure of the disease and patients' wishes.Cardi-O-fix PFO occluder was used in 180 cases (COF group), Amplatzer PFO occluder was used in the remaining 66 cases (Amp group)...
June 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28647899/value-of-contrast-enhanced-mri-in-the-differentiation-between-nasopharyngeal-lymphoid-hyperplasia-and-t1-stage-nasopharyngeal-carcinoma
#8
Ming-Liang Wang, Xiao-Er Wei, Meng-Meng Yu, Wen-Bin Li
OBJECTIVES: To investigate the value of contrast-enhanced MRI in differentiation between benign nasopharyngeal lymphoid hyperplasia (NPLH) and T1 stage nasopharyngeal carcinoma (NPC). METHODS: Eighty-six NPLH patients and 38 T1 stage NPC patients who underwent a contrast-enhanced MRI and an endoscopic biopsy were included. The patients' symptoms and MRI features of nasopharyngeal mucosal thickening like location, symmetry, nasopharyngeal bubble, superficial mucus, nasopharyngeal retention cysts, serrated protrusions, contrast-enhancement type were documented...
June 24, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28647849/the-clinical-outcomes-of-using-a-new-cross-linked-hyaluronan-gel-in-endoscopic-frontal-sinus-surgery
#9
Teoman Dal, Seçil Bahar
In endoscopic sinus surgery (ESS) synechiae formation and ostial stenosis are frequently encountered. This is not uncommon after frontal recess and ostium interventions due to the narrow recess and difficult anatomy of the region. The goal of this study is to evaluate the efficacy of the new cross-linked hyaluronan gel-PureRegen(®) Gel Sinus-on wound healing and synechiae prevention in endoscopic frontal sinus surgery. The study consists of two groups of patients who underwent ESS, including frontal sinus surgery...
June 24, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28647750/misdiagnosed-paranasal-gossypiboma-a-10-year-experience-with-21-cases-at-a-tertiary-center
#10
P Z Wu, W Sun, Y H Wen, R Q Ma, X L Zhu, W P Wen
BACKGROUND: Different from rhinoliths, the paranasal gossypiboma is a foreign body, such as a surgical sponge, left in the nasal cavity. It is a rare, frequently misdiagnosed disease that has rarely been reported. We summarize its clinical characteristics, management, and possible risk factors. METHODOLOGY: We reviewed medical records of confirmed paranasal gossypibomas at a tertiary medical center between 2005 and 2015. Clinical symptoms, age, sex, anatomic sites, endoscopic photography, computed tomography, intraoperative findings, and past medical history were reviewed...
June 25, 2017: Rhinology
https://www.readbyqxmd.com/read/28647659/flow-diverters-as-a-useful-adjunct-to-traditional-endovascular-techniques-in-the-treatment-of-direct-carotid-cavernous-fistulas
#11
Christopher S Ogilvy, Rouzbeh Motiei-Langroudi, Mohammad Ghorbani, Christoph J Griessenauer, Abdulrahman Y Alturki, Ajith J Thomas
BACKGROUND: Direct carotid-cavernous sinus fistulas (CCF) are high flow arteriovenous shunts that are typically the result of a severe head injury. The endovascular treatment of these lesions includes the use of detachable balloons, coils, liquid embolic agents, and covered stents. To minimize the chance of treatment failure and subsequent complications, endoluminal reconstruction using a flow-diverting stent may be added to the treatment construct . METHODS: We present 3 cases and review the existing literature...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28647313/ruptured-sinus-of-valsalva-aneurysm-causing-myocardial-infarction
#12
Wilman Olmedo, Michael Weinreich, Pedro A Villablanca
No abstract text is available yet for this article.
June 21, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28647196/smooth-muscle-cells-of-human-veins-show-an-increased-response-to-injury-at-valve-sites
#13
Shinsuke Kikuchi, Lihua Chen, Kevin Xiong, Yukihiro Saito, Nobuyoshi Azuma, Gale Tang, Michael Sobel, Thomas N Wight, Richard D Kenagy
OBJECTIVE: Venous valves are essential but are prone to injury, thrombosis, and fibrosis. We compared the behavior and gene expression of smooth muscle cells (SMCs) in the valve sinus vs nonvalve sites to elucidate biologic differences associated with vein valves. METHODS: Tissue explants of fresh human saphenous veins were prepared, and the migration of SMCs from explants of valve sinus vs nonvalve sinus areas was measured. Proliferation and death of SMCs were determined by staining for Ki67 and terminal deoxynucleotidyl transferase dUTP nick end labeling...
June 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28646501/progressive-aortic-root-dilatation-in-pediatric-heart-transplant-recipients
#14
Shagun Sachdeva, Liyun Zhang, Pippa Simpson, Peter C Frommelt
BACKGROUND: To determine prevalence, clinical implication, and risk factors for aortic root dilation (ARD) in pediatric heart transplant recipients. METHODS: Serial echocardiograms were reviewed in all pediatric heart transplant recipients from 1999 to 2014 to assess maximal systolic diameter at the aortic annulus, aortic sinus, aortic sino-tubular (ST) junction, and ascending aorta. ARD was defined by a sinus/annulus ratio >1.56, ST junction/annulus ratio >1...
June 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28646364/sinonasal-malignancies-incidence-and-histological-distribution-in-jamaica-1973-2007
#15
Tracey N Gibson, Dawn P McNaughton, Barrie Hanchard
PURPOSE: To determine the histological distribution and trends in incidence of sinonasal malignancies in Jamaica. METHODS: Cases of all sinonasal malignancies diagnosed between 1973 and 2007 were extracted from the archives of the Jamaica Cancer Registry. Data recorded for each case included age at diagnosis, sex, year of diagnosis, topography, and histology. Data were used to calculate frequencies, age-specific incidence rates, and age-standardized incidence rates (ASRs)...
June 23, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28645923/the-connection-between-acute-otitis-media-and-the-acute-abdomen
#16
Imran Masood, Tami Hendriksz
A female aged 9 years with a recent episode of acute otitis media (AOM) presented to her primary care physician with complaints of severe abdominal pain with right lower quadrant rebound tenderness, suggestive of an acute surgical abdomen. Neurological examination was normal on presentation. She was transferred to the local children's hospital for workup of appendicitis, during which she began exhibiting ataxia and slurred speech. Further evaluation revealed mastoiditis, venous sinus thrombosis and subdural empyema...
June 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28645669/multidisciplinary-approach-to-oral-rehabilitation-with-dental-implants-after-gunshot-injury-a-clinical-report
#17
Lélis Gustavo Nícoli, Suzane Cristina Pigossi, Raphael Ferreira de Souza Bezerra Araújo, Cláudio Marcantonio, Élcio Marcantonio, Élcio Marcantonio
This clinical report describes a multidisciplinary approach to treat a patient with edentulism and a severe anatomic defect in the mandible caused by a gunshot injury by using an implant-fixed complete dental prosthesis. An immediate loading interim implant-fixed complete dental prosthesis in the mandible associated with a maxillary removable complete denture prosthesis was initially provided to restore the intermaxillary relation. Nasal floor elevation and maxillary sinus augmentation were subsequently performed to increase the maxillary bone volume...
June 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28645591/surgical-repair-of-iatrogenic-transverse-sigmoid-sinus-laceration-with-a-dural-flap-during-skull-base-tumor-surgery-a-technical-case-report
#18
Gerald S Oh, Gregory D Arnone, Hussam Abou-Al-Shaar, Ashley L Barks, Andrew Wong, Fady T Charbel
BACKGROUND: Injury to cerebral venous sinuses during craniotomy procedures can cause significant blood loss or venous air embolism potentially leading to serious morbidity or mortality. When iatrogenic sinus injuries occur, it is essential to promptly obtain hemostasis and repair the sinus defect. CASE DESCRIPTION: The authors report a 43-year-old female that sustained a transverse-sigmoid sinus injury during a retrosigmoid craniotomy for resection of a cerebellopontine angle meningioma...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28645590/endoscopic-supracerebellar-transtentorial-approach-to-the-atrium-of-the-lateral-ventricle-preliminary-surgical-and-optical-considerations
#19
Tao Xie, Linjun Zhou, Xiaobiao Zhang, Wei Sun, Hailin Ding, Tengfei Liu, Ye Gu, Chongjing Sun, Fan Hu, Wei Zhu
OBJECTIVE: To report the operative techniques of the endoscopic supracerebellar transtentorial approach (ESTA) to the atrium of the lateral ventricle, especially focusing on the role of the endoscope and analyzing optically related issues. METHODS: A retrospective data review was performed on five patients with lesions in the atrium of the lateral ventricle undergoing the ESTA. The patients were positioned in the three-quarters prone position, and a paramidline linear incision was used...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28645586/venous-sinus-stenting-in-the-management-of-patients-with-intracranial-hypertension-manifesting-with-skull-base-cerebrospinal-fluid-leaks
#20
Rajiv R Iyer, David Solomon, Abhay Moghekar, C Rory Goodwin, Charles M Stewart, Masaru Ishii, Philippe Gailloud, Gary L Gallia
BACKGROUND: A subset of patients with skull base cerebrospinal fluid (CSF) leaks are found to have elevated intracranial pressure (ICP). In these patients, elevated ICP is thought to contribute to both the pathophysiology of the leak as well as postoperative leak recurrences. Current strategies for post-operative ICP control include medical therapy and shunting procedures. The aim of this study is to report the use of venous sinus stenting (VSS) in the management of patients with skull base CSF leaks due to elevated ICP...
June 20, 2017: World Neurosurgery
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