Endoscopic Resection of Sinonasal Inverted Papilloma: A Multivariate Retrospective Analysis of Factors Affecting Recurrence and Persistence.

Sinonasal inverted papilloma (IP) is the most common benign epithelial tumor in the nasal cavity and paranasal sinuses, with a worldwide incidence between 0.6 and 1.5/100 000 persons per year. However, only a few studies have investigated patient-dependent factors related to IP recurrence and persistence. According to available evidence, these factors are still debated, and results are contradictory. In this multicenter retrospective study, we analyzed the clinical records of 130 patients who were surgically treated for sinonasal IP to evaluate the factors affecting recurrence and persistence of IP and compared the curative rates of different surgical approaches. Our analysis showed that IP recurrence is strongly related to specific risk factors including incomplete surgical removal, stage of disease, site of the lesion, surgical technique, and malignancy rate. In conclusion, the recurrence of IP may be affected by several risk factors; these factors must be carefully considered during clinical evaluation and especially during the follow-up of patients with IP

Effect of surgery, delivery device and head position on sinus irrigant penetration in a cadaver model

AbstractObjectiveThe extent of surgery, the type of device used and head position may influence nasal irrigation. The aim of this study was to determine the effectiveness of topical irrigant delivery to the paranasal sinuses according to these factors.MethodFour cadaveric heads underwent four stepwise endoscopic dissections. Irrigations were evaluated after every stage using different delivery devices (squeeze-bottle, gravity-dependent device and syringe) in two head positions (nose-to-sink and vertex down). Irrigant penetration into each sinus was estimated using a four-point scale.ResultsA significant positive effect of surgery was demonstrated for each sinus as well as for the delivery device. High-volume irrigant devices are more effective, and the head position plays a significant role in irrigant distribution to the frontal sinus.ConclusionThis study further confirms the efficacy of high-volume irrigant devices. A vertex down position during the irrigation could improve delivery to the frontal sinus, and the widening of the ostia increases irrigant access to the sinuses

Endoscopic management of recurrent epistaxis: The experience of two metropolitan hospitals in Italy

Conclusion: Endoscopic cauterization of the sphenopalatine artery and anterior ethmoid artery is a first-line standard of care in managing intractable epistaxis, after the failure of previous packing. Epistaxis occurs in 12% of the population. Treatment is often based on nasal packing that could be poorly effective in the treatment of severe posterior epistaxis. Objective: To evaluate the effectiveness of the endoscopic approach for posterior epistaxis. Methods: We report the experience of endoscopic cauterization in two metropolitan hospitals in Italy: 48 patients with at least one nasal packing in the 3 weeks before hospital admission. They underwent endoscopic cauterization of the sphenopalatine artery or of the anterior ethmoid artery. Results: The patients' mean age was 58.7 years; the mean hospital stay was 2.97 days. In 42 cases (87.5%), cauterization of the sphenopalatine artery was performed, and 6 (12.5%) were subjected to anterior ethmoid artery treatment. Epistaxis control was achieved in 93% of cases; 3 patients had a recurrent nasal bleeding, and were treated with anterior nasal packing. Minor complications occurred in 27.1%. We achieved a shorter hospital stay compared with patients who underwent anteroposterior packing

Endoscopic sinus surgery for foreign body extraction in an adult patient

Abstract Foreign bodies are an unusual indication for endoscopic sinus surgery. If outpatient extraction is not possible and acute sinusitis ensues, thorough exploration and extended surgical dissection should be considered to clear the nasal cavities

Térinformatikai oktatás és kutatás-fejlesztés az ELTE Informatikai Karán

In past years, geographical information systems have undergone spectacular development. Beside traditional applications some new areas have been opened by the spreading of navigation systems and the publication of geoinformation via Internet. Software products supporting geoinformatics have also undergone tremendous development. The paradigm shift should be followed by the education of professionals. This article presents several educational and research results achieved at ELTE Faculty of Informatics, supported by institutional cooperation. In 2004, one year after the Faculty had been established, the Geoinformatics educational module started as a part of software engineering education at master level. Up to now, more than 400 students have completed the module. In parallel with education, research has started as well. Its topics include the development of University Digital Map Library (EDIT), automatic raster-vector conversion of maps, and the development of an open source GIS framework called AEGIS. Another field of research, the segment-based evaluation of remote sensing images is carried out in cooperation with the Institute of Geodesy, Cartography and Remote Sensing. The theoretical results obtained were formerly used only in the thematic mapping of land cover. However, the methods investigated recently appeared in three novel applications. Beyond giving presentations in subject Analysis of Remote Sensing Images within the Geoinformatics educational module, the researchers of FÖMI provide the possibility to students to complete their professional practice in the Institute. Ö S S Z E F O G L A L Ó Az elmúlt években a térinformatika rohamos fejlődésnek indult. A hagyományos alkalmazások mellett új területek nyíltak, elsősorban a navigációs rendszerek elterjedésével és a geoinformáció internetes megjelenítésével. Erőteljes fejlődés állt elő a térinformatikát támogató szoftveres világban is. A paradigmaváltást a szakemberképzésnek is követnie kell. Ebben a cikkben olyan oktatási és kutatási eredményekről számolunk be, amelyek – intézményi együttműködéssel támogatva – az ELTE Informatikai Karán valósultak meg. A Kar 2003-as megalakulása után egy évvel, a mesterszintű informatikus képzés részeként elindult a Térinformatikai modul, amelyet eddig több mint 400 hallgató végzett el. A szakterület oktatásával együtt a kutatás is beindult, olyan témákkal, mint például az Egyetemi Digitális Térképtár (EDIT) fejlesztése, a térképek automatikus raszter-vektor konverziója, vagy az AEGIS nyílt forráskódú térinformatikai rendszer fejlesztése. Egy további kutatás, a távérzékelt felvételek szegmensalapú kiértékelése, a Földmérési és Távérzékelési Intézettel (FÖMI) való együttműködés keretében folyik. Az elért elméleti eredményeket korábban csak a felszínborítások térképének elkészítésében használták fel, jelenleg azonban a vizsgált módszerek három újszerű alkalmazásban is megjelentek. Az Intézet, amellett, hogy munkatársai tartják a Térinformatikai modulban a Távérzékelt felvételek elemzése c. tantárgy előadását, minden évben több hallgatónak biztosít lehetőséget a kooperatív képzésre