30,286 research outputs found
Evaluation of a new ultrasonic device for surgical dissection in lung lobectomy and lymphadenectomy for lung cancer
No full textObjective
To assess and compare surgical electric hook vs Harmonic ACE Plus® impact on short-term postoperative outcomes after video-assisted thoracoscopic (VATS) lung lobectomy and lymphadenectomy for non-small cell lung cancer (NSCLC).
Materials and methods
We prospectively collected data of 120 consecutive patients [60% male; median age: 71 (62-76 IQR:) years] undergoing lung lobectomy and lymphadenectomy by VATS for NSCLC in our Center from October 1st 2016 to July 31th 2019. Patients were divided in two groups based on the device used for tissue dissection: the electric hook (Group A) in 68 cases and the Harmonic ACE Plus® (Group B) in 52. Multivariable analysis by binary logistic regression was performed in order to test the energy device as possible risk factor for pleural effusion volume at 48 hours after surgery and for postoperative chest tube duration.
Results
No intraoperative complications due to energy device were recorded in both groups.
Chylothorax incidence was higher in Group A with no statistically significant difference between the two groups (3% vs 0%; p-value=0.50). Pleural effusion volume during the first 48 postoperative hours was significantly higher in Group B: 253 ml (IQR: 149-405) vs 408 (IQR: 294-508) ml (p-value<0.01). However, chest tube duration was similar in the two groups: 4 (IQR: 3-8) vs 5 (IQR: 4-8) days (p-value=0.39). At multivariable analysis energy device was not independently associated with pleural effusion volume at 48 hours after surgery and with postoperative chest tube duration.
Conclusions
Electric hook or Harmonic ACE Plus® use during VATS lobectomy for NSCLC is safe and leads to similar postoperative short-term outcomes
Complications from tracheal resection for thyroid carcinoma
No full textThyroidectomy associated to en bloc tracheal resection with end-to-end anastomosis is the treatment of choice of thyroid tumor invading the tracheal wall and is associated with a good prognosis. However, the postoperative morbidity is not irrelevant. The present review aims to discuss the complications occurring after this aggressive surgical procedure. The search was performed using PubMed through an overarching for the following terms: "complication of tracheal resection [AND] invasive thyroid cancer". Postoperative complications rate after tracheal sleeve resection with end-to-end anastomosis for thyroid cancer invading tracheal wall range from 15% to 39%. Postoperative mortality is about 1.2%. The most common postoperative complications are: anastomotic dehiscence, airway stenosis, infections and bleeding. Tumor local recurrence can be considered a late on set complication. To conclude, in locally invasive thyroid cancer, en bloc resection of the thyroid with the tracheal segment interested by the tumor provides a good prognosis despite the non-negligible postoperative morbidity rate. Patients' selection and accurate surgical technique performing a tracheal tension-free anastomosis are mandatory to reduce postoperative morbidity and mortality
Endobronchial ultrasound-transbronchial needle aspiration for mediastinal staging of non-small cell lung cancer: Variability of results and perspectives
No full textThe remarkable value of endobronchial ultrasound-transbronchial needle aspiration (EBUSTBNA) for mediastinal staging of non-small cell lung cancer (NSCLC) is recognized worldwide. Reports from different centers however show considerable variation of EBUS-TBNA performance in terms of diagnostic yield, sensitivity and negative predictive value (NPV). Interpretation of EBUSTBNA diagnostic efficacy requires clarifying whether the technique is used for purely diagnostic purpose or mediastinal staging, recognizing that different study groups may be inherently heterogeneous and that numerous factors may impact on the procedure outcomes. Review of these factors indicates that the prevalence of N2/N3 disease, the thoroughness of mediastinal sampling and > 3 needle passes per target lymph node (LN) [in the absence of rapid on-site eva luation (ROSE)] influence the procedure outcomes, while many details in the sample preparation technique are unlikely to impact on the results and should be left to the proceduralists' preference. Generalized use of a standardized database for prospective collection of relevant EBUS-TBNA data would allow reporting institutional results by subgroups of N2/N3 disease prevalence and thoroughness of staging, and would help establishing quality standards for the procedure
Maria Bersani
No full textLa voce illustra la biografia e l'apporto letterario dato da Maria Bersani alla letteratura per l'infanziaThe headword explains the biography and the contribution of the author Maria Bersani to the children's literatur
Vision-based bicycle/motorcycle classification with Support Vector Machines
No full textClassification of vehicles plays an important role in a traffic monitoring system. In this paper we present a feature-based classifier, which can distinguish bicycles from motorcycles in real world traffic scenes.
Basically, the algorithm extracts some visual features focusing on the region corresponding to the wheels of vehicle. It splits the problem into two sub-cases depending on the computed motion direction. The classification is performed by means of a non-linear Support Vector Machine. Tests lead to a successful classification rate of 93% on video sequences taken from different road junctions in an urban environmen
Vision-based bicycle/motorcycle classification
No full textWe present a feature-based classifier that distinguishes bicycles from motorcycles in real-world traffic scenes. The algorithm extracts some visual features focusing on the wheel regions of the vehicles. It splits the problem into two sub-cases depending on the computed motion direction. The classification is performed by non-linear Support Vector Machines. Tests lead to a successful vehicle classification rate of 96.7% on video sequences taken from different road junctions in an urban environment
A Rare Case of Incidental Tracheal Lipoma|Caso excepcional de un hallazgo casual de lipoma traqueal
No full textVariations on the Author
No full text“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
Geometric Layout Analysis Techniques for Document Image Understanding: a Review
No full textDocument Image Understanding (DIU) is an interesting research area with a large variety of challenging applications. Researchers have worked from decades on this topic, as witnessed by the scientific literature. The main purpose of the present report is to describe the current status of DIU with particular attention to two subprocesses: document skew angle estimation and page decomposition. Several algorithms proposed in the literature are synthetically described. They are included in a novel classification scheme. Some methods proposed for the evaluation of page decomposition algorithms are described. Critical discussions are reported about the current status of the field and about the open problems. Some considerations about the logical layout analysis are also reported
A 90-day mortality risk model as a support in managing patients undergoing video-assisted thoracic surgery for lung cancer
No full textIn the age of mini-invasive surgery it is fundamental to know VATS specific data related not only to surgical morbidity but also to surgical mortality. Furthermore, including these data into a 90-day mortality risk model may be the first step in supporting surgeons in managing
lung cancer patients’ treatment and counselling
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