1,720,969 research outputs found
Nose and headache: what have we learned? Naso e cefalee : cosa abbiamo imparato
No full textSinonasal involvement in secondary headache has long been interpreted as sinusitis and overestimation has been a problem in the past. In the last 20 years, the innovative interpretation of contact points between the lateral nasal wall and the septum as triggering cause of facial pain via the trigeminovascular system has gained importance in nasal secondary headaches. Also in this case, the prevalence and relevance has been misinterpreted in the beginning, undermining the success rate of pain improvement after surgical removal of these contact points. Therefore, studies have started to concentrate on the need of suitable preoperative evaluation to define the ideal, responsive candidate for surgical management of this form of headache. This article analyzes the outcome of these studies and tries to highlight the need for long-term follow-up to finally determine the relevance of surgical treatment for this particular headache form
Late diagnosis of a solitary fibrous tumour of the parapharyngeal space in a continuous positive airway pressure-treated patient
No full textSolitary fibrous tumours of the parapharyngeal space are a very rare finding and have been described less than 10 times in the English literature. The Authors discuss a clinical case of a solitary fibrous tumour in the parapharyngeal space in a 77-year-old male, who had begun treatment for a newly discovered obstructive sleep apnoea syndrome with a continuous positive airway pressure - device one year prior to diagnosis. This rare location of an uncommon lesion often gives rise to difficulty in diagnosis or to misdiagnosis and the Authors, therefore, made a review of the scientific literature and analysed the diagnostic and therapeutic procedures used. The importance of this report lies mainly in two aspects: on the one hand, the discussion concerning the diagnostic and therapeutic procedures and on the other, the need of a thorough evaluation in obstructive sleep apnoea syndrome patients before treating them with a chronic device like the continuous positive airway pressure device
Sinonasal complications resulting from dental treatment : outcome-oriented proposal of classification and surgical protocol
No full textBackground:
Odontogenic sinusitis is a relevant infectious condition of the paranasal sinuses. The widespread use of dental implants and reconstructive procedures for dental implant placement has led to new types of complication. To the authors' knowledge, no publication has extensively examined sinonasal complications resulting from dental treatment, and no classification system allowing standardization and comparison of results is currently available. This study was designed to (a) analyze the results obtained from surgical treatment of complications resulting from dental procedures combining functional endoscopic sinus surgery (FESS) and an intraoral approach and (b) propose a new classification system and standardized treatment protocols for sinonasal complications resulting from dental procedures.
Methods:
A total of 257 patients consecutively treated with FESS (136 in conjunction with oral surgery) were included in the study. Different clinical situations were integrated into a new classification system based on the pathogenesis and clinical aspects of each case, with the aim of identifying homogenous treatment groups. Results were evaluated for each class.
Results:
Of the 257 patients, 254 were successfully treated with surgery performed according to the proposed protocols. Three of 257 patients required a second surgery, after which they completely recovered. Complications of implant and preimplant surgery (maxillary sinus floor elevation) showed longer recovery times.
Conclusion:
The results obtained are very encouraging. The majority of patients (254/257; 98.8%) were successfully treated with the proposed protocols. These results seem to indicate that the rationalization of surgical treatment protocols according to the initial clinical situation may significantly improve the clinical outcome
Maxillary sinus elevation in conjunction with transnasal endoscopic treatment of rhino-sinusal pathoses : preliminary results on 10 consecutively treated patients
No full textA one-step surgical procedure is presented, including maxillary sinus floor elevation in association with functional endoscopic sinus surgery to remove rhino-sinusal malformations or pathoses that might contraindicate sinus floor elevation. Over a 2-year period, 10 patients requiring a sinus floor augmentation procedure to restore the missing dentition with endosseous implants, but presenting with local and reversible rhinologic contraindications to the augmentation procedure were consecutively treated with a surgical approach that included simultaneously functional endoscopic sinus surgery and a sinus floor elevation procedure through an intra-oral approach. Then 4-6 months after this procedure, oral implants were inserted and after a further waiting period, ranging from 3 to 6 months, patients were restored with prostheses and followed for 1 to 3 years after the completion of prosthetic restoration. In all 10 patients, complete recovery of para-nasal sinuses function was demonstrated and occurred in all cases within one month. All cases showed good integration and consolidation of the graft material used for maxillary sinus floor augmentation. None of the implants placed were lost during the follow-up period after completion of prosthetic loading. In conclusion, despite the limits of this study (which included only 10 patients), the combination of maxillary sinus augmentation procedures and functional endoscopic sinus surgery, to treat local contraindications to sinus augmentation has proven to be both effective and safe and has allowed the patient to avoid a second surgical procedure and a longer waiting period before final prosthetic rehabilitation. No sinusal complications related to sinus floor augmentation were encountered and the survival rate of implants placed in the augmented areas was consistent with those reported in cases of sinus floor augmentation performed in patients presenting with a healthy rhino-sinusal system
Dalle sinusiti odontogene alle complicanze nasosinusali di patologia o trattamento odontoiatrico : un importante cambio di prospettiva
No full textLe sinusiti odontogene sono una patologia di confine tra Chirurgia orale e Otorinolaringoiatria. Il loro impatto sulla pratica clinica sta assumendo dimensioni sempre più importanti anche per la sempre più capillare diffusione delle procedure di riabilitazione implantologica del mascellare superiore. Patologia sino a pochi anni fa ritenuta in via di scomparsa, le sinusiti odontogene sono state oggetto di interesse scientifico crescente negli anni 2000. La pubblicazione di svariati case report e pubblicazioni originali, accanto all’ubiquitaria introduzione nella pratica clinica delle tecniche diagnostiche e chirurgiche di endoscopia nasosinusale, ha portato a importanti cambi di prospettiva nella gestione di queste patologie. Accanto alle sinusiti odontogene classiche, legate alla patologia dentale, si è passati a includere nella trattazione le complicanze, sia infiammatorie che non, dei trattamenti pre-implantologici, implantologici e odontoiatrici classici. Questa evoluzione nosologica ha portato all’introduzione del concetto di complicanze nasosinusali di patologia o trattamento odontoiatrico (sinonasal complications of dental disease or treatment, SCDDT). Per questo quadro complessivo di forme nosologiche sono state introdotte specifiche classificazioni e protocolli di trattamento. Questo articolo vuole essere un aggiornamento sulle sinusiti odontogene e le SCDDT, proponendo, attraverso il filtro della nostra esperienza ultradecennale, una revisione della letteratura focalizzata sul trattamento multidisciplinare che vede l’odontoiatra, il chirurgo orale/maxilla-facciale e l’otorinolaringoiatra alleati nell’affrontare in modo integrato queste patologie. Vengono presentati anche i protocolli di classificazione e di trattamento utili nella gestione del paziente e importanti informazioni sul management sia clinico che chirurgico della complicanza acuta e cronicizzata.Odontogenic sinusitis is a condition lying on the fine line between Oral surgery and Otolaryngology. Its burden on everyday clinical practice is getting more and more important, also due to the wide spread of oral implants to support prosthetic restorations of the upper jaw. Though considered on the wane until a few years ago, odontogenic sinusitis have gathered growing scientific interest since the 00’s. Various case reports and original research articles, along with the ubiquitous diffusion of sinonasal endoscopic diagnostic and surgical tools, gradually shifted the perspective in managing these conditions. Along with classic odontogenic sinusitis, caused by dental conditions, otolaryngologists have begun to include in their practice inflammatory and non-inflammatory complications following dental treatments implant placement in the partially or totally edentulous maxilla, or pre-implant reconstructive procedures such as the sinus grafting techniques. This conceptual evolution led to introduce the definition of “sinonasal complications of dental disease or treatment” (SCDDT), along with specific classifications and defined treatment protocols. This article is intended as an update on odontogenic sinusitis and SCDDTs and as a review of the existing literature through the eyes of our ultra-decennial experience, focusing on the multidisciplinary treatment of these borderline conditions, based on the alliance between oral/maxillofacial surgeons and otolaryngologists. The Authors will also discuss classification and treatment protocols which may be useful in managing the patient, both during acute and chronic complications
Endoscopic laryngeal patterns in vagus nerve stimulation therapy for drug-resistant epilepsy
No full textIn 30 % of patients with epilepsy seizure control cannot be achieved with medications. When medical therapy is not effective, and epilepsy surgery cannot be performed, vagus nerve stimulator (VNS) implantation is a therapeutic option. Laryngeal patterns in vagus nerve stimulation have not been extensively studied yet. The objective was to evaluate laryngeal patterns in a cohort of patients affected by drug-resistant epilepsy after implantation and activation of a vagus nerve stimulation therapy device. 14 consecutive patients underwent a systematic otolaryngologic examination between 6 months and 5 years after implantation and activation of a vagus nerve stimulation therapy device. All patients underwent fiberoptic endoscopic evaluation, which was recorded on a portable device allowing a convenient slow-motion analysis of laryngeal patterns. All recordings were blindly evaluated by two of the authors. We observed three different laryngeal patterns. Four patients showed left vocal cord palsy at the baseline and during vagus nerve stimulation; seven showed left vocal cord palsy at the baseline and left vocal cord adduction during vagus nerve stimulation; and three patients showed a symmetric pattern at the baseline and constant left vocal cord adduction during vagus nerve stimulation. These laryngeal findings are here described for the first time in the literature and can be only partially explained by existing knowledge of laryngeal muscles and vagus nerve physiology. This might represent a new starting point for studies concerning laryngeal physiology and phonation, while the vagus nerve stimulation therapy could act as a new and ethical experimental model for human laryngeal physiology
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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