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Obiettivo. Indagare possibili associazioni tra esposizione professionale a polveri di legno, sintomi e alterazioni rinocitologiche. Materiali e metodi. 73 soggetti esposti a polveri di legno e 74 controlli sono stati sottoposti a rinoscopia anteriore e scraping con Rhino-probe per studiare in microscopia ottica la presenza di cellule infiammatorie, batteri e miceti. L'esposizione personale a polveri di legno è stata monitorata con selettore IOM e analisi gravimetrica. Risultati. Gli esposti presentano più frequentemente sintomi rinologici, neutrofilia e linfocitosi. Alla lettura citologica semiquantitativa emergono associazioni significative tra esposizione e grading medio di neutrofili, linfociti e batteri. Il tabagismo sembra ininfluente sulla citologia. Suddividendo gli esposti a polveri di legno in classi di esposizione (<0.5 mg/m3, 0.5-1 mg/m3, 1-5 mg/m3 e >5 mg/m3), la neutrofilia risulta tendenzialmente associata a crescenti livelli espositivi. Conclusioni. La rinocitologia mediante scraping nella diagnosi differenziale delle rinopatie è semplice, rapida, atraumatica e applicabile a lavoratori esposti a polveri di legno. [ABSTRACT FROM AUTHOR]

Objective: Factor V Leiden (FVL) is by far the most prevalent inherited thrombophilic abnormality in Western countries, and this genetic condition has been associated with sudden sensorineural hearing loss (SSHL). Audiologists should be aware that SSHL may be the precursor of life-threatening thromboembolic events, especially in Caucasians who are more likely to be FVL carriers. Design: Case report. Study sample: A 41-year-old male patient. Results: Although this is not the first report of SSHL in a FVL carrier, it is the first to describe SSHL occurring in a heterozygous FVL carrier who - within a month - was also diagnosed with deep vein thrombosis of the left common femoral, saphenous, and popliteal veins, and pulmonary embolism of the left pulmonary artery branch serving the posterior basal segment of the inferior lobe. Conclusions: SSHL is an emergency condition that warrants prompt medical examination and treatment. Hematological investigations should be considered in SSHL patients at least for those with a family history of thrombotic events, and for women on estrogen-progestin therapy or during pregnancy, with a view to providing adequate antithrombotic prophylaxis and reducing the risk of other thromboembolic events. [ABSTRACT FROM AUTHOR]

Conclusions. Diagnostic work-up should include contrast-enhanced computed tomography (CT) and mandible orthopantogram. When a dental origin of deep neck infection is suspected, the intravenous antibiotic regimen has to be active against gram-positive bacteria, both aerobes and anaerobes. Surgical exploration and drainage may be mandatory at presentation, or in cases not responding to medical therapy within the first 24 h. Objectives. Deep neck infections are still associated with significant morbidity and mortality rates when complications occur. Despite worldwide improvement in dental care and oral hygiene, a significant prevalence of deep neck infections caused by dental infections has been described recently (>40%). Patients and methods. We analysed retrospectively 85 cases of deep neck infection with dental origin out of 206 consecutive cases of deep neck infection diagnosed in our institution between 2000 and 2006. Results. The most frequent dental source was a periapical infection of the first mandibular molar, followed by second and third molar, respectively. Submandibular space infection involvement was diagnosed in 73 of 85 patients (85.9%), masticatory space infection in 28 (32.9%); in 56 patients (65.9%) the infection involved more than one space. Twenty-four patients (28.2%) were treated only with intravenous antibiotic therapy; 61 patients (71.8%) required both medical and surgical procedures. [ABSTRACT FROM AUTHOR]

The article studies the nasal microbiology of patients with sinonasal polyposis and chronic sinusitis treated with functional endoscopic sinus surgery (FESS). The isolation rate of Burkholderia cepacia complex (Bcc), a gram-negative bacteria, in sinonasal polyposis patients without cystic fibrosis is examined. The pre-operative and post-operative cultures of the species including Staphylococcus aureus, Bcc, Pseudomonas aeruginosa and others are also studied.

Objective:To discover the anatomist who first identified the upper oesophageal sphincter.Method:The authors searched dozens of antique anatomy textbooks kept in the old section of the ‘Vincenzo Pinali’ Medical Library of Padua University, looking for descriptions of the upper oesophageal sphincter.Results:The oesophageal sphincter was drawn correctly only in 1601, by Julius Casserius, in the book De vocis auditusque organis historia anatomica… (which translates as ‘An Anatomical History on the Organs of Voice and Hearing …’), and was properly described by Antonio Maria Valsalva in 1704 in the book De aure humana tractatus… (‘Treatise on the Human Ear …’).Conclusion:Anatomists Casserius and Valsalva can be considered the discoverers of the ‘oesophageal sphincter’. [ABSTRACT FROM PUBLISHER]

Epidermal growth factor receptor (EGFR) is a trans-membrane tyrosine kinase taking part in cell transformation and tumor progression. One of the downstream pathways controlled by EGFR involves the mammalian target of rapamycin (mTOR), a proto-oncogene activated in several cell functions. Recent evidence seems to confirm that both EGFR and mTOR regulate angiogenesis. The aim of this study was to investigate the expression of EGFR and mTOR in laryngeal squamous cell carcinoma (LSCC) cells in a retrospective clinical setting and their correlation with tumor neo-angiogenesis, judged on the grounds of CD105-assessed microvascular density (MVD), and prognosis. We considered 76 consecutive patients with LSCC treated with surgery alone. Immunohistochemical expressions of EGFR, mTOR, and CD105 were measured using image analysis and findings underwent statistical analysis using univariate and multivariate models. We found that nodal status correlated significantly with patient prognosis in terms of disease-free survival (DFS) ( p = 0.01). There was a strong direct correlation between mTOR and EGFR expression ( p = 0.0003), and between mTOR and CD105-assessed MVD ( p = 0.0025). Patients with a CD105-assessed MVD >5.28 % had a significantly higher recurrence rate (RR) ( p = 0.026), and a significantly shorter DFS ( p = 0.025). On multivariate analysis, only N stage [hazard ratio (HR) 3.54, p = 0.009] and CD105-assessed MVD (HR 2.87, p = 0.027) maintained their independent prognostic significance in terms of DFS. Judging from our promising findings, the EGFR-mTOR pathway should be investigated further to understand its role in LSCC neo-angiogenesis. [ABSTRACT FROM AUTHOR]

Conclusions . All the discussants of our questionnaire agreed that the price of tracheoesophageal (TE) prostheses was too expensive for developing countries. The problem could be addressed in terms of international laws regarding companies' patent rights. TE prosthesis manufacturers from rich countries could move their manufacturing in part to developing countries. High production standards could allow TE prostheses to be exported to developed countries. Another approach to the problem may be based on a partnership between non-profit-making Western laryngological societies with specific medical and technical prosthetic know-how and local manufacturers. The aim of this cooperation could be the low-cost production of advanced TE prostheses in the developing countries. Objectives . In communities in the developing world, most laryngeal and hypopharyngeal carcinomas are diagnosed at advanced stages and require total laryngectomy. Prosthetic TE voice restoration is the method of choice for voice rehabilitation after total laryngectomy in developed countries. Unacceptably high costs are a significant limitation to Third World use of TE voice prostheses. The aims of this paper are to discuss the consequences of the high costs of TE prostheses in developing countries with head and neck surgeons working in Third World hospitals and to propose how European and American laryngological societies can promote TE speech in the developing countries. Material and methods . A questionnaire was given to a group of expert head and neck surgeons working in developing countries and their answers and suggestions discussed. [ABSTRACT FROM AUTHOR]

We report the unusual case of a 44-year-old man who presented with a plastic foreign body that had been lodged in his right nasal cavity for approximately 35 years. Initial attempts to remove the object were unsuccessful; only after it was broken into several parts was removal achieved. Rigid nasal endoscopy and computed tomography revealed hypoplasia of the ipsilateral inferior turbinate. [ABSTRACT FROM AUTHOR]