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Giuseppa Graceffa,Salvatore Vieni,Manfredi Magliulo,Iole Laise,Mario Latteri,Calogero Cipolla 대한갑상선-내분비외과학회 2020 The Koreran journal of Endocrine Surgery Vol.20 No.2
Purpose: Intraoperative neuromonitoring (IONM) of the recurrent laryngeal nerve (RLN) is a useful technique that can be applied to assess the nerve functionality at the end of the first side lobectomy in a planned total resection to prevent the bilateral injury of the RLN. Here we describe the process of informed consent of patients, who were subjected to a 2-stage thyroidectomy, and its effect on the patients willingness to be operated on as well as their consent rates. Methods: A retrospective observational study of patients, undergoing thyroidectomy with standardized IONM, was conducted from January 2019 to December 2019. All patients were preoperatively informed about the possibility of undergoing a 2-stage thyroidectomy. The outcome of this information was evaluated through a specific questionnaire that the patients were asked to fill in. Results: Eighty patients were initially included in the analysis. The treatment was discontinued in 8 patients, who were originally eligible to total thyroidectomy, due to the detection of a loss of signal in the electromyography. The analysis of the results of the questionnaires highlighted a high compliance of the patients with the expectation of a possible new intervention. Conclusion: Two-stage thyroidectomy proved to be a reliable surgical approach and appeared to be largely accepted by the patients.
Detection of onset of failure in prestressed strands by cluster analysis of acoustic emissions
Ercolino, Marianna,Farhidzadeh, Alireza,Salamone, Salvatore,Magliulo, Gennaro Techno-Press 2015 Structural monitoring and maintenance Vol.2 No.4
Corrosion of prestressed concrete structures is one of the main challenges that engineers face today. In response to this national need, this paper presents the results of a long-term project that aims at developing a structural health monitoring (SHM) technology for the nondestructive evaluation of prestressed structures. In this paper, the use of permanently installed low profile piezoelectric transducers (PZT) is proposed in order to record the acoustic emissions (AE) along the length of the strand. The results of an accelerated corrosion test are presented and k-means clustering is applied via principal component analysis (PCA) of AE features to provide an accurate diagnosis of the strand health. The proposed approach shows good correlation between acoustic emissions features and strand failure. Moreover, a clustering technique for the identification of false alarms is proposed.