The purpose of this article is to analyse the facial nerve electrophysiological monitoring effective ness in preventing injuries of this nerve during parotid surgery. To achieve this goal we analysed relevant data available in the literature on both the surgical technique and intraoperative continuous monitoring principles. In order to draw the conclusions of this paper we correlated the obtained data with our own experience.

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Abstract:Healthcare sector provides huge volume of data on patients and their illnesses, on health insurance plants, medication and treatment schedules for different diseases, on medical services and so forth. Nowadays, there is a growing demand for the healthcare community to transform the existing quantities of healthcare data into value-added data, by discovering unknown patterns and relations between these data and by using them in the decision-making process, even if they refer to management, planning or treatments. Data mining consists in discovering knowledge and techniques such as classification and regression trees, logistic regression and neural networks that are adequate to predict the health status of a patient, by taking into account various medical parameters (also known as attributes) and demographic parameters. This paper presents a case study on the classification of patients with thyroid dysfunctions into three classes (i.e. 1 -hypothyroidism, 2 -hyperthyroidism, 3-normal) by using data mining algorithms and discusses possible methods to improve the accuracy of the considered classification models.

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Transnasal endoscopic dacryocystorhinostomy is a good alternative for external DCR. It is considered a safe and efficient technique with successful results, comparable or even better than the external technique. Advanced knowledge of the endoscopic anatomy and the lacrimal system is necessary to perform the procedure safely, and to obtain good surgical outcomes. The aim of the paper is to analyze the changes of the endoscopic technique and to improve it. The transnasal endoscopic dacryocystorhinostomy surgical technique is described in a "step by step" manner. Also the surgical technologies that can be used for this intervention are presented, focusing on the cold instruments.

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Narrow Band Imaging (NBI) is an optical method that helps the surgeon visualize lesions that are not always visible under white light endoscopy. First the method was used in gastroenterology, almost 10 years ago, with great success. Four years ago the optical method was transferred in the ENT (Ear Nose Throat) field and now it is available on fiber optic and rigid endoscopes. The technological advancement, the introduction of new video chips capable to produce HDTV (high definition TV) images offered the surgeon the ability to obtain high resolution, dynamic images during flexible or fixed endoscopic examination of the larynx. The aim of the paper was to evaluate the utility of the intraoperative use of NBI technology in obtaining disease free resection margins during endoscopic surgery of the larynx.

Lingual squamous cell carcinoma is one of the most frequent localization of the oral carcinomas. The tongue neoplasia represents nearly 40% of the oral carcinomas. Recent studies showed an increasing trend of lingual carcinoma in young patients. Several staining tests have been described to early detect the disease. After detection, disease free margins resection will increase the survival rate. This study aims to analyze the methylene blue staining test in achieving disease free resection margins in lingual squamous cell carcinoma.