Search results for "Recurrent"
showing 10 items of 256 documents
Out-of-the-box pelvic surgery including iliopsoas resection for recurrent gynecological malignancies: Does that make sense? A single-institution case…
2017
Abstract Objective To report morbidity and oncological outcomes in a consecutive series of lateral isolated recurrent gynecological cancer involving the pelvic side wall (PSW) including the iliopsoas muscle. Material and methods We retrospectively evaluated a consecutive series between 6/2013 and 12/2015 of lateral isolated recurrent gynecological malignancies treated with a lateral endopelvic resection (LEPR). LEPR was defined as an en-bloc lateral resection of a pelvic tumor with sidewall muscle, and/or bone, and/or major nerve, and/or major vascular structure. Post-surgical complications, quality of life (QoL) and survivals were computed. Results Seventy-four women with pelvic isolated r…
Pelvic exenteration for recurrent endometrial adenocarcinoma: a retrospective multi-institutional study about 21 patients.
2014
ObjectiveThe aim of our study was to evaluate morbidity, mortality, and long-term survival of patients who underwent pelvic exenteration (PE) with curative intent for recurrence of endometrial adenocarcinoma during a single decade.MethodsWe defined a cohort of 21 patients who met our inclusion criteria, referred to 4 cooperating gynecologic oncology settings in Germany and Italy between 2000 and 2011. Data regarding surgery, histology, and oncologic outcomes were collected and statistically evaluated. Survival was determined from the day of exenteration until the last follow-up or death.ResultsThe median age was 66 years. A total of 42.9% of the patients had major complications, and a compl…
Recurrent Meningitis Associated With Duane Syndrome Type 1
2012
We present the case of a 17-month-old male patient with a bilateral Duane syndrome type 1 associated to unilateral cochleovestibular dysplasia, perilymphatic fistula and recurrent meningitis. Diagnosis was carried out by MRI and CT scan. His management and treatment are described, as well as the postoperative evolution. We believe this is an exceptional case due to the low frequency of this syndrome, as well as to the otoneurological complications.
Extraction of the Muon Signals Recorded with the Surface Detector of the Pierre Auger Observatory Using Recurrent Neural Networks
2021
The Pierre Auger Observatory, at present the largest cosmic-ray observatory ever built, is instrumented with a ground array of 1600 water-Cherenkov detectors, known as the Surface Detector (SD). The SD samples the secondary particle content (mostly photons, electrons, positrons and muons) of extensive air showers initiated by cosmic rays with energies ranging from $10^{17}~$eV up to more than $10^{20}~$eV. Measuring the independent contribution of the muon component to the total registered signal is crucial to enhance the capability of the Observatory to estimate the mass of the cosmic rays on an event-by-event basis. However, with the current design of the SD, it is difficult to straightfo…
Hourly Forecasting of SO2 Pollutant Concentration Using an Elman Neural Network
2006
In this paper the first results produced by an Elman neural network for hourly SO2 ground concentration forecasting are presented. Time series has been recorded between 1998 and 2001 and are referred to a monitoring station of SO2 in the industrial site of Priolo, Syracuse, Italy. Data has been kindly provided by CIPA (Consorzio Industriale per la Protezione dell'Ambiente, Siracusa, Italia). Time series parameters are the horizontal and vertical wind velocity, the wind direction, the stability classes of Thomas, the base level of the layer of the atmospheric stability, the gradient of the potential temperature and the difference of the potential temperature of reference.
Three Hours Ahead Prevision of SO2 Pollutant Concentration Using an Elman Neural based Forecaster
2008
Abstract Indoor air quality near the industrial site is tightly joined to pollutant concentration level, since outdoor pollution heavily influences air quality and, consequently, inhabitants health. A pollution management system is essential for health protection. Automatic air quality management systems have became an important research issue with strong implications for inhabitants’ health. In this paper an automatic forecaster based on neural networks for SO 2 concentration prevision is proposed. The analyzed area covers different small towns near the industrial site of Priolo, in the south of the world. Among these towns, Melilli was the first town in Italy that was evacuated for high l…
A NEURAL NETWORK PRIMER
1994
Neural networks are composed of basic units somewhat analogous to neurons. These units are linked to each other by connections whose strength is modifiable as a result of a learning process or algorithm. Each of these units integrates independently (in paral lel) the information provided by its synapses in order to evaluate its state of activation. The unit response is then a linear or nonlinear function of its activation. Linear algebra concepts are used, in general, to analyze linear units, with eigenvectors and eigenvalues being the core concepts involved. This analysis makes clear the strong similarity between linear neural networks and the general linear model developed by statisticia…
Re-irradiation With Carbon Ion Radiotherapy for Pelvic Rectal Cancer Recurrences in Patients Previously Irradiated to the Pelvis
2020
Background/Aim: Re-irradiation of locally recurrent rectal cancer poses challenges due to the proximity of critical organs, such as the bowel. This study aimed at evaluating the safety and efficacy of re-irradiation with Carbon Ion Radiotherapy (CIRT) in rectal cancer patients with local recurrence. Patients and Methods: Between 2014 and 2018, 14 patients were treated at the National Center of Oncological Hadrontherapy (CNAO Foundation) with CIRT for locally recurrent rectal cancer. Results: All patients concluded the treatment. No G≥3 acute/late reaction nor pelvic infections were observed. The 1-year and 2-year local control rates were, 78% and 52%, respectively, and relapse occurred clos…
Prevenzione delle complicanze in chirurgia tiroidea: la lesione del nervo laringeo ricorrente. Esperienza personale su 313 casi
2005
Introduction: Thyroidectomy poses many challenges for the surgeon who undertakes endocrine surgery and iatrogenic injury of inferior laryngeal nerve (ILN) is one of the most serious (0-20%). We report our personal experience of a series of 313 thyroidectomy with intraoperative identification of ILN. Methods: 313 patients (253 females, 60 males, whose age was between 17 and 86 years, mean 41 years) had undergone thyroidectomy in our Operative Unit from January 2000 to January 2004. Among them, 259 patients underwent total extracapsular thyroidectomy, 38 subtotal thyroidectomy, 5 istmo-lobectomy and 11 were completions of thyroidectomy in patients who had previously undergone a first thyroid …