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France Lambert, Miljana Bacevic, Pierre Layrolle, Peter Schüpbach, Pierre Drion, Eric Rompen
AIMS: The primary objective of this study was to compare the in vivo performance, namely in terms of quantity of newly formed bone and bone-to-material contact (osteoconductivity), of three hydroxyapatite-based biomaterials (HA) of different origins (natural or synthetic) or manufacturing process in a sinus lift model in rabbits. The secondary objective was to correlate the findings with the physical and topographical characteristics of the biomaterials. MATERIALS AND METHODS: Two bovine HA manufactured with different processes (bovine hydroxyapatites [BHA] and cuttlebone hydroxyapatite [CBHA]) and a synthetic hydroxyapatite (SHA) sintered at high temperature were characterised with scanning electronic microscopy (SEM) and the measurement of specific surface area (BET)...
October 22, 2016: Clinical Oral Implants Research
Sanjay Prakash, Chaturbhuj Rathore
The differential diagnosis of strictly unilateral hemicranial pain includes a large number of primary and secondary headaches and cranial neuropathies. It may arise from both intracranial and extracranial structures such as cranium, neck, vessels, eyes, ears, nose, sinuses, teeth, mouth, and the other facial or cervical structure. Available data suggest that about two-third patients with side-locked headache visiting neurology or headache clinics have primary headaches. Other one-third will have either secondary headaches or neuralgias...
December 2016: Journal of Headache and Pain
Xingqun Liang, Sylvia M Evans, Yunfu Sun
The sinoatrial node (SAN) is the dominant pacemaker of the heart. Abnormalities in SAN formation and function can cause sinus arrhythmia, including sick sinus syndrome and sudden death. A better understanding of genes and signaling pathways that regulate SAN development and function is essential to develop more effective treatment to sinus arrhythmia, including biological pacemakers. In this review, we briefly summarize the key processes of SAN morphogenesis during development, and focus on the transcriptional network that drives SAN development...
October 21, 2016: Cellular and Molecular Life Sciences: CMLS
K L Yew, Z Kang, A Anum
Coronary artery anomalies are often discovered incidentally during cardiac catheterization or computed tomography coronary angiography and may involve the affected coronary artery origin and its course. Coronary artery anomalies are associated with congenital heart disease. The affected coronary arteries may have an unusual high take off origin, origin from contralateral or non-coronary sinus, origin from the pulmonary artery, single coronary system or coronary artery fistula.
August 2016: Medical Journal of Malaysia
Delfo D'Alessandro, Giuseppe Perale, Mario Milazzo, Stefania Moscato, Cesare Stefanini, Gianni Pertici, Serena Danti
The ideal scaffold for bone regeneration is required to be highly porous, non-immunogenic, biostable until the new tissue formation, bioresorbable and osteoconductive. This study aimed at investigating the process of new bone formation in patients treated with granular SmartBone(®) for sinus augmentation, providing an extensive histologic analysis. Five biopsies were collected at 4-9 months post SmartBone(®) implantation and processed for histochemistry and immunohistochemistry. Histomorphometric analysis was performed...
October 18, 2016: International Journal of Pharmaceutics
Alissa B Forman-Alberti, J Benjamin Hinnant
The somatic marker hypothesis posits that autonomic activity occurring in response to specific stimuli aids in implicit learning, the learning of information without explicit awareness of what has been learned. This study investigated whether respiratory sinus arrhythmia (RSA), a measure of autonomic nervous system activity, predicted changes in implicit learning. The interaction of resting RSA and RSA reactivity (change in RSA during the implicit learning task) was associated with changes in implicit learning, with those who had higher resting RSA and greater RSA withdrawal during the task performing better...
October 18, 2016: International Journal of Psychophysiology
M Gao, Y Hao, M X Huang, D Q Ma, Y Chen, H Y Luo, Y Gao, Z Q Cao, X Peng, G Y Yu
The aims of this study were to investigate the epidemiological and clinical characteristics of epithelial salivary gland tumours in a northern Chinese population and to evaluate the current TNM classification system. A demographic and descriptive analysis of 7190 epithelial salivary gland tumours was performed. There were 4654 benign tumours and 2536 malignant tumours. The percentage of tumours located in the parotid, submandibular, sublingual, and minor salivary glands was 62.66%, 9.92%, 2.57%, and 24.85%, respectively; 22...
October 18, 2016: International Journal of Oral and Maxillofacial Surgery
Lars Bjørndal, Catharina Amaloo, Merete Markvart, Vibe Rud, Klaus Qvortrup, Camilla Stavnsbjerg, Thomas Bjarnsholt
INTRODUCTION: The aim was to present a case report of a full-length extrusion of an obturator's core carrier into the maxillary sinus, causing clinical symptoms from the nose region with differential diagnostics aspects, which, in turn, led to several surgical treatments of the nostrils before diagnosis and correct endodontic retreatment of a maxillary right first molar. A 36-year-old man presented in 2012 with complaints from the right nostril region. Medical treatment with antibiotics and surgical procedures because of nasal stenosis resulted only in partial improvement...
October 18, 2016: Journal of Endodontics
F Heran Dreyfus, O Galatoire, P Koskas, F Lafitte, E Nau, O Bergès
Orbito-palpebral vascular pathology represents 10% of all the diseases of this area. The lesion may be discovered during a brain CT scan or MRI, or because it causes clinical symptoms such as orbital mass, visual or oculomotor alteration, pain, proptosis, or acute bleeding due to a complication of the lesion (hemorrhage, thrombosis). We present these lesions using an anatomical, clinical, imaging and therapeutic approach. We distinguish four different entities. Vascular tumors have common imaging characteristics (hypersignal on T2 sequence, contrast enhancement, abnormal vascularization well depicted with ultrasound and Doppler, and possible bleeding)...
October 18, 2016: Journal Français D'ophtalmologie
Giuseppe Brescia, Giorgia Saia, Federico Apolloni, Gino Marioni
INTRODUCTION: Over the last 30years, dental implants have become widespread all over the world. Though the implantation procedure is standardized and safe, the displacement of implants into the maxillary sinus can occur. The aim of the study has been to describe a novel combined nasal endoscopic approach through the middle and lower meatus for managing dental implants displaced into the maxillary sinus. METHODS/RESULTS: A 40-year-old man was examined for a titanium osteo-integrated implant displaced within the alveolar recess of the left maxillary sinus...
September 28, 2016: American Journal of Otolaryngology
Srikanth Boddu, Marc Dinkin, Maria Suurna, Kelly Hannsgen, Xem Bui, Athos Patsalides
OBJECTIVE: Evaluate the role of venous sinus stenting in the treatment of pulsatile tinnitus among patients with Idiopathic Intracranial Hypertension (IIH) and significant venous sinus stenosis. SUBJECTS AND METHODS: A written informed consent approved by the Weill Cornell institutional review board was signed and obtained from the study participants. Thirty-seven consecutive patients with IIH and venous sinus stenosis who were treated with venous sinus stenting between Jan...
2016: PloS One
Kristin E Hirabayashi, Evan Kalin-Hajdu, Frank L Brodie, Robert C Kersten, Matthew S Russell, M Reza Vagefi
A 68-year-old immunocompromised man with rhino-orbital-cerebral mucormycosis was treated with retrobulbar injections of amphotericin B deoxycholate in conjunction with intravenous antifungals and endoscopic sinus debridement. Transient episodes of orbital inflammation were noted after retrobulbar injections, but progression of orbital infection was halted and visual acuity restored with eventual hospital discharge. To the authors' knowledge, clearance of orbital mucormycosis with retrobulbar amphotericin B injections has not been previously reported...
October 20, 2016: Ophthalmic Plastic and Reconstructive Surgery
Chai Kobkitsuksakul, Pakorn Jiarakongmun, Ekachat Chanthanaphak, Sirintara Pongpech
PURPOSE: The classic symptoms and signs of carotid cavernous sinus fistula or cavernous sinus dural arteriovenous fistula (AVF) consist of eye redness, exophthalmos, and gaze abnormality. The angiography findings typically consist of arteriovenous shunt at cavernous sinüs with ophthalmic venous drainage with or without cortical venous reflux. In rare circumstances, the shunts are localized outside the cavernous sinus, but mimic symptoms and radiography of the cavernous shunt. We would like to present the other locations of the arteriovenous shunt, which mimic the clinical presentation of carotid cavernous fistulae, and analyze venous drainages...
October 21, 2016: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
Giacomo Bertolini, Francesco Restelli, Morgan Broggi, Paolo Ferroli
No abstract text is available yet for this article.
October 21, 2016: Journal of Neurosurgery
Saamir A Hassan, Syed Wamique Yusuf, Jyoti Sharma, Jasmine Khan, Michele Guindani, Vicente Valero, Mariana Chavez-McGregor, Jose Banchs
OBJECTIVES: To identify unique echocardiographic features that could be used to reliably predict LVEF recovery upon resolution of sinus tachycardia in patients with cancer. BACKGROUND: Sinus tachycardia may be a manifestation of underlying cardiomyopathy or can lead to a reversible form of dilated cardiomyopathy known as tachycardia-mediated cardiomyopathy. While distinguishing the two can be challenging, predicting recovery regardless of cause can be of significant clinical importance in the cancer population...
October 21, 2016: Echocardiography
Mukta Agarwal, Divendhu Bhushan
No abstract text is available yet for this article.
October 2016: Journal of the Association of Physicians of India
Sebastian Stefanski, Börje Svensson, Andreas Thor
PURPOSE: Various augmentation procedures involving the maxillary sinus, using bone substitutes or bone, have been used to enhance bone support for dental implants. The aim of this study was to retrospectively evaluate the status of implants in patients who had undergone a maxillary sinus lift and immediate implant placement without the addition of graft material. MATERIALS AND METHODS: Nineteen patients who had required bone augmentation of their maxillary sinus floor were evaluated in this study...
October 20, 2016: Clinical Oral Implants Research
Matthieu Delion, Mickael Dinomais, Philippe Mercier
Surgery of the posterior fossa represents a technical challenge because of the proximity of the vessels of the cerebellum. If the arterial vascularization of the cerebellum is well known, the main arterial variations and the whole venous vascularization are probably under recognized. We describe the vascular organization and the main variations through photographs of colored latex perfused brains, obtained with a surgical microscope. The arterial vascularization of the cerebellum is based on three arteries which all originate from the vertebrobasilar system: the superior cerebellar artery (SCA), the anterior and inferior cerebellar artery (AICA), and the posterior and inferior cerebellar artery (PICA)...
October 20, 2016: Cerebellum
Veysel Burulday, Mehmet Hüseyin Akgül, Nuray Bayar Muluk, Mehmet Faik Ozveren, Ahmet Kaya
In the present study, we investigated the types and ratio of posterior clinoid process (PCP) pneumatization in paranasal sinus multidetector computed tomography (MDCT). Paranasal MDCT images of 541 subjects (227 males, 314 females), between 15 and 65 years old, were included into the study. Pneumatization of anterior clinoid process and pneumatization types (I, II, or III) were evaluated in the males and females. PCP pneumatization was detected in 20.7 % of the males and 11.5 % of the females. Right, left, and bilateral PCP pneumatizations were detected in 7...
October 21, 2016: Neurosurgical Review
Hiroaki Osada, Hiroyuki Nakajima, Katsuaki Meshii, Motoaki Ohnaka
A 75-year-old man who had undergone ascending aorta replacement for acute Type A aortic dissection presented with a recurring high fever. Transesophageal echocardiography revealed that a vegetation had formed on the re-dissected intimal flap of the noncoronary sinus of Valsalva. This didactic case suggests that antibiotic prophylactic measures be considered for aortic dissection flaps as for irregular valves susceptible to infective endocarditis.
February 2016: Aorta (Stamford, Conn.)
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