Search results for "gea"

Oral manifestations in patients with gastro-oesophageal reflux disease: a single-center-case-control study

2008

Long-term effect on adenoid dimensions and craniocervical angulation after maxillary expansion with fixed or functional appliances

2020

Background Maxillary expansion is a common orthodontic procedure that could have a positive effect also on airway patency. The aim of the present study was to evaluate the long-term effects of rapid maxillary expansion (RME) on nasopharyngeal area and cranio-cervical angulation in growing patients, compared to controls treated with a function-generating bite appliance (FGB). Material and methods Sixty patients aged 6-14 consecutively treated with RME or FGB were selected retrospectively and divided into two groups. Lateral cephalograms taken before and after treatment were retrieved, and the nasopharyngeal area, delimited superiorly by a sella-posterior nasal spine (PNS) line and inferiorly…

Effectiveness and Duration of Plantar Pressure Off-loading by Two Designs of Felt Padding: A Preliminary Study.

2019

Background: The aim of this study was to observe the pressure changes in the felt padding used to off-load pressure from the first metatarsal head, the effects obtained by different designs, and the loss of effectiveness over time. Method: With a study population of 17 persons, two types of 5-mm semicompressed felt padding were tested: one was C-shaped, with an aperture cutout at the first metatarsophalangeal joint, and the other was U-shaped. Pressures on the sole of the foot were evaluated with a platform pressure measurement system at three time points: before fitting the felt padding, immediately afterward, and 3 days later. Results: In terms of decreased mean pressure on the first met…

Objective tinnitus secondary to palatal tremor: Two case reports and brief literature review.

2021

Abstract Objective tinnitus is defined as a type of tinnitus perceived by both the patient and external observer. This paper presents two cases of objective tinnitus related to palatal tremor, along with a literature review. Palatal tremor is a condition characterized by soft palate involuntary contractions. Two types of palatal tremor have been described: symptomatic palatal tremor and essential palatal tremor, with different clinical manifestations. Diagnostic workup is based on medical history and physical examination, including direct oropharynx exploration and cavum visualization through nasopharyngoscopy. Brain MRI is mandatory in all cases. If a secondary origin is suspected, additio…

Alanine/ESR dosimetry for electron Intra-Operative RadioTherapy: output factor measurements and Monte Carlo-GEANT4 simulations for IORT mobile dedica…

2015

Intra-operative radiation therapy (IORT) is a treatment modality where a single high dose of radiation is delivered directly to the tumor bed or to the exposed tumor during the surgical intervention, while avoiding surrounding dose-limiting structures. Mobile electron linear accelerators dedicated to IORT have been manufactured which have promoted a local large diffusion of this radiotherapy modality. For breast irradiation, a single fraction of 21 Gy delivered on the target volume during the surgical procedure is equivalent to the total dosage (60 Gy) usually delivered during 30 external fractionated radiotherapy at 2Gy/fraction. Alternatively, a single dose of 10 Gy can be administered as…

V-Belt Winding along Archimedean Spirals During the Variator Speed Ratio Shift

2010

Starting from a previous model for the shift mechanics of rubber belt variators, this lecture elaborates practical design formulas for the torque and the axial thrust making use of the very close resemblance of the belt path to a linear spiral of Archimedes along a large part of the arc of contact. In addition, as an alternative to the modern calculus tools, it is shown how the drive variables can be equally calculated applying some propositions of Archimedes’ classical treatise πeρί ‘eλίκων (On Spirals).

Gastric cancer: epidemiology, pathology and treatment.

2003

Gastric cancer incidence and mortality has fallen dramatically over the last 50 years in many regions, but remains the second most common cancer worldwide. Despite a marked decline in fundic and distal tumors, there is a rising incidence of adenocarcinomas of the gastroesophageal junction and gastric cardia, particularly in Western nations. This may imply that there are in fact two diseases differing from each other in epidemiology, etiology, pathology and clinical expression. While surgical resection remains the cornerstone of gastric cancer treatment, the optimum extent of nodal resection remains controversial, with randomized studies failing to show that the D2 procedure improves surviva…

Carcinoma of the tongue and bulbar-onset amyotrophic lateral sclerosis: unusual differential diagnosis.

2007

We present a 72-year-old woman with progressive dysphagia, dysarthria and tongue palsy who was initially diagnosed with bulbar-onset amyotrophic lateral sclerosis (ALS). However, the absence of atrophy or fasciculations in the tongue, as in other voluntary muscles, and the lack of reproducible neurophysiological evidence of denervation, prompted a revision of the diagnostic work-up, which eventually led to the discovery of a carcinoma of the tongue. This case report describes a relatively rare type of oropharyngeal carcinoma that, in its early stage, resembled a bulbar-onset ALS. This differential diagnosis is unusual, and it was fostered by the persistent lack of atrophy of the tongue and …

Value of insoluble PABPN1 accumulation in the diagnosis of oculopharyngeal muscular dystrophy.

2019

Background and purpose The aim was to assess the value of insoluble PABPN1 muscle fibre nuclei accumulation in the diagnosis of atypical cases of oculopharyngeal muscular dystrophy (OPMD). Methods Muscle biopsies from a selected cohort of 423 adult patients from several Italian neuromuscular centres were analysed by immunofluorescence: 30 muscle biopsies of genetically proven OPMD, 30 biopsies from patients not affected by neuromuscular disorders, 220 from genetically undiagnosed patients presenting ptosis or swallowing disturbances, progressive lower proximal weakness and/or isolated rimmed vacuoles at muscle biopsy and 143 muscle biopsies of patients affected by other neuromuscular diseas…

Confocal laser endomicroscopy.

2005

A miniaturized confocal microscope was developed that could be integrated in the distal tip of a conventional colonoscope. With this technique, denoted confocal endomicroscopy, subsurface analysis of the gut mucosa and in-vivo histology during ongoing endoscopy are possible in full resolution by point scanning laser analysis. The diagnostic spectrum of confocal endomicroscopy is expanding from screening and surveillance for colorectal cancer to Barrett's esophagus, Helicobacter pylori-associated gastritis, and gastric cancer. The new detailed images seen with confocal laser endomicroscopy allow a unique look on cellular structures at and below the surface of the gut. This review describes t…