94 research outputs found
Prognostic Factors of Tympanoplasty Type I in Pediatric Population – 4 Years Series of Dona Estefânia Hospital (HDE) of Centro Hospitalar Lisboa CentraL (CHLC –EPE)
Objetivos: Identificação de fatores de prognóstico em crianças submetidas a timpanoplastia tipo I.
Materiais e métodos: Estudo retrospetivo baseado na análise de todos os processos clÃnicos de crianças atá aos 15 anos de idade, submetidas a timpanoplastia tipo I de Portmann durante um perÃodo de 4 anos.
Resultados: Das 260 timpanoplastias realizadas neste perÃodo no serviço foram incluÃdos no estudo apenas 109 crianças. Das timpanoplastias realizadas, obteve-se sucesso cirúrgico em 68.8%, não se tendo identificado fatores de mau prognóstico cirúrgico com significância estatÃstica.
Conclusões: As timpanoplastias tipo I em crianças são um procedimento válido e com elevada taxa de sucesso, não tendo sido identificado qualquer fator de mau prognóstico cirúrgico com significado estatÃstico.info:eu-repo/semantics/publishedVersio
Minimal systems of binomial generators for the ideals of certain monomial curves
Let and be three positive integers such that and
are relatively prime. In this paper, we prove that the
toric ideal associated to the submonoid of generated by
is determinantal. Moreover, we prove that for , the ideal has a unique minimal system of generators if and only if
Retropharyngeal and Lateropharyngeal Infections in Children: The Experience of a Pediatric Hospital During the Last Decade
Introdução: Apresentando-se muitas vezes de forma insidiosa e mascarando-se por tratamentos efectuados previamente, as infecções retro e laterofarÃngeas são um desafio diagnóstico. São pouco frequentes na era antibiótica moderna, mas têm capacidade para causarem complicações potencialmente fatais.
Material e métodos: Estudo retrospectivo dos casos e análise de dados relativos à epidemiologia, etiologia, apresentação clÃnica, diagnóstico, tratamento e complicações, de crianças diagnosticadas com infecções retro e laterofarÃngeas, no nosso hospital pediátrico, desde Janeiro 2001 a Janeiro 2012.
Resultados: Foram incluÃdas no estudo 23 crianças, com idades compreendidas entre os 3 meses e os 8 anos, com uma média de idades de 47 meses (4 anos). Treze (57%) apresentavam infecções retrofarÃngeas, 2 (9%) infecções laterofarÃngeas e 8 (35%) ambas. A incidência de casos foi maior no ano de 2010 (4 casos). Doze (52%) eram do sexo masculino e 11 (48%) do sexo feminino. A odinofagia (57%), a cervicalgia (26%) e a recusa alimentar (22%) foram as queixas mais comuns Ã
apresentação. A febre (87%), o torcicolo e a rigidez cervical (65%), a tumefacção cervical (52%) e a prostração (35%) foram os achados fÃsicos mais frequentes. Todos (100%) os doentes receberam antibioticoterapia endovenosa. O tratamento médico sem drenagem foi inicialmente proposto para 15 (65%) crianças. A falência no tratamento médico, requerendo cirurgia, ocorreu em 5 (33%) delas. Num dos
casos, foi necessário efectuar uma nova drenagem cirúrgica. O tratamento cirúrgico foi inicialmente proposto para 8 (35%) crianças, tendo sido efectuado durante as primeiras 24 horas.
Este tratamento não teve falência em nenhum (0%) dos casos, não tendo sido necessária a realização de uma segunda cirurgia. No entanto, numa das crianças, por aparecimento de um novo abcesso noutra localização, houve necessidade de se proceder à sua drenagem. Duas (9%) crianças tiveram
complicações: mediastinite, trombose da veia jugular e sÃndrome de Claude Bernard Horner.
Conclusões: Os sintomas na apresentação das infecções retro e laterofarÃngeas na população pediátrica são variados, requerendo o seu diagnóstico um elevado Ãndice de suspeição. O tratamento correcto e atempado é fundamental para um prognóstico favorável. O tratamento ideal nos doentes sem
obstrução iminente da via aérea é controverso e objecto de debate, particularmente a escolha entre tratamento médico ou cirúrgico como primeira linha. Torna-se portanto, essencial, maior investigação nesta área, de forma a optimizar resultados
Hyperbaric Oxygen Therapy in Retinal Arterial Occlusion: Epidemiology, Clinical Approach, and Visual Outcomes
PURPOSE:
To evaluate the efficacy and safety of hyperbaric oxygen therapy (HBOT) in patients with acute retinal artery occlusion (RAO). Secondarily, to analyse the epidemiology and the clinical approach.
METHODS:
Retrospective study of 13 patients submitted to HBOT between 2013 and 2018. The analysed parameters consisted of: systemic history, time between symptoms onset and treatment, initial approach, number of HBOT sessions, complications of HBOT and best corrected visual acuity-BCVA (of the total sample, central RAO-CRAO-group, and branch RAO-BRAO group).
RESULTS:
Arterial hypertension was the most prevalent systemic risk factor (53.8%). Initial therapies were 100% normobaric oxygen administration, topical and oral hypotensive medication, eye massage and aspirin. CRAO was observed in 69.2% and BRAO in 30.8% of the cases, with clinically significant visual improvement (a decrease in logMAR of 0.3) in 55.5% and 75%, respectively. Time between symptoms onset and treatment had a median of 9 hours. The median number of HBOT sessions was 7, without complications.
CONCLUSIONS:
HBOT provide BCVA improvement in patients with RAO, when it is performed in an early time after the symptom onset. It seems to be an effective and safe therapeutic option for a pathology that still remains without approved treatment.info:eu-repo/semantics/publishedVersio
Assessment of portuguese community forestry: using the Voluntary Guidelines on the Responsible Governance of Tenure and FAO community-based forestry framework
In the last five decades, Community-Based Forestry (CBF) has
become a subject of special attention. It is assumed that the transfer
of rights to local communities will improve forest management. In
Portugal more than 13% of the forest area belongs to local communities
(termed baldios). Following FAO tools, assessments of
Forest Tenure and CBF were conducted to evaluate the effectiveness
of four baldio management types. The results revealed the most
common challenges for baldios, vis- a-vis, rights associated with their
management, protection of these rights, weak land administration,
weak mechanisms for conflict resolution, problems with decentralized
state support, cash flow management, and environmental challenges
leading to wildfires, loss of biodiversity, and inadequate
control of pests and invasive species. Resolution of these challenges
is urgently needed at the legal, administrative and local levels.
Future research should include assessments of CBF in other
European countries to reduce the existing knowledge gapinfo:eu-repo/semantics/publishedVersio
Physically crosslinked polyvinyl alcohol hydrogels as synthetic cartilage materials
Abstract in proceedings of the Fourth International Congress of CiiEM: Health, Well-Being and Ageing in the 21st Century, held at Egas Moniz’ University Campus in Monte de Caparica, Almada, from 3–5 June 2019.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.info:eu-repo/semantics/publishedVersio
A method to obtain orange crop geometry information using a mobile terrestrial laser scanner and 3D modeling
LiDAR (Light Detection and Ranging) technology has been used to obtain geometrical attributes of tree crops in small field plots, sometimes using manual steps in data processing. The objective of this study was to develop a method for estimating canopy volume and height based on a mobile terrestrial laser scanner suited for large commercial orange groves. A 2D LiDAR sensor and a GNSS (Global Navigation Satellite System) receiver were mounted on a vehicle for data acquisition. A georeferenced point cloud representing the laser beam impacts on the crop was created and later classified into transversal sections along the row or into individual trees. The convex-hull and the alpha-shape reconstruction algorithms were used to reproduce the shape of the tree crowns. Maps of canopy volume and height were generated for a 25 ha orange grove. The different options of data processing resulted in different values of canopy volume. The alpha-shape algorithm was considered a good option to represent individual trees whereas the convex-hull was better when representing transversal sections of the row. Nevertheless, the canopy volume and height maps produced by those two methods were similar. The proposed system is useful for site-specific management in orange groves.We thank Citrosuco and Jacto companies for supporting this project, the São Paulo Research
Foundation (FAPESP) for providing a scholarship to the first author (grant: 2013/18853-0) and the Coordination
for the Improvement of Higher Education Personnel (CAPES), for funding the first author as an exchange visitor
at the University of Lleida (grant: bex_3751/15-5
- …