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1.
Schweiz Arch Tierheilkd ; 164(10): 733-739, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36193783

RESUMO

INTRODUCTION: Outbreaks of equine coronavirus (ECoV) infections have been described in different parts of the world including Europe. The aim of this report was to describe clinical signs, diagnostic work-up and outcome of the first documented outbreak of ECoV in Switzerland in order to raise the awareness for the disease and its various clinical presentations. The outbreak occurred on a farm with 26 horses. Of these, seven horses developed clinical disease ranging from mild signs such as fever and anorexia to severe signs of acute colitis. One horse died due to severe endotoxemia and circulatory shock secondary to severe acute necrotizing enteritis and colitis. Out of the 26 horses, five horses tested positive for ECoV, including two ponies without any clinical signs of infection. The low number of positive cases should nevertheless be interpreted with caution as testing was only performed on one occasion, over a month after the onset of clinical signs in the first suspected case. This report highlights the importance of diagnostic testing and early implementation of biosecurity measures on a farm with an ECoV outbreak. It should furthermore raise the awareness for unspecific and mild clinical signs such as fever and anorexia in affected animals that are potentially able to spread the disease.


INTRODUCTION: Des foyers d'infection à coronavirus équin (ECoV) ont été décrits dans différentes parties du monde, y compris en Europe. L'objectif de ce rapport est de décrire les signes cliniques, le diagnostic et les conséquences du premier foyer d'ECoV documenté en Suisse, afin de sensibiliser le public à cette maladie et à ses différents aspects cliniques. L'épidémie s'est produite dans une écurie comptant 26 chevaux. Parmi ceux-ci, sept chevaux ont développé une forme clinique allant de signes légers tels que la fièvre et l'anorexie à des signes sévères de colite aiguë. Un cheval est mort en raison d'une endotoxémie sévère et d>un choc circulatoire secondaire à une entérite nécrosante aiguë sévère et à une colite. Sur les 26 chevaux, cinq ont été testés positifs à l>ECoV, dont deux poneys sans aucun signe clinique d'infection. Le faible nombre de cas positifs doit néanmoins être interprété avec prudence car les tests n'ont été effectués qu'à une seule occasion, plus d'un mois après l'apparition des signes cliniques chez le premier cas suspect. Ce rapport souligne l'importance des tests de diagnostic et de la mise en œuvre rapide de mesures de biosécurité dans une exploitation où un foyer d'ECoV est détecté. Il devrait en outre sensibiliser à la présence de signes cliniques peu spécifiques et bénins tels que la fièvre et l'anorexie chez les animaux atteints qui sont potentiellement capables de propager la maladie.


Assuntos
Betacoronavirus 1 , Colite , Infecções por Coronavirus , Doenças dos Cavalos , Animais , Anorexia/veterinária , Colite/epidemiologia , Colite/veterinária , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/veterinária , Surtos de Doenças/veterinária , Fezes , Doenças dos Cavalos/diagnóstico , Cavalos , Suíça/epidemiologia
2.
Praxis (Bern 1994) ; 107(22): 1195-1199, 2018.
Artigo em Alemão | MEDLINE | ID: mdl-30376775

RESUMO

Microscopic colitis (MC) is still an underestimated cause of chronic, non-bloody watery diarrhea. It is typically manifested in elderly patients with a female predominance. The incidence of microscopic colitis has been increasing. The aetiology and pathophysiology remain unclear. Conditions associated with it include autoimmune diseases. There may be a genetic predisposition, as familial cases have been described. As implicated by the name microscopic colitis, the diagnosis is found by histological examination. There are mainly two subtypes, the lymphocytic colitis (LC) and the collagenous colitis (CC). Even if the condition's long-term course is benign, a chronic recurrent course of the symptoms is frequent. Due to the symptoms, there is an impairment of patient's health-related quality of life. A correct diagnosis and therapy is therefore mandatory. The aim of this paper is to create awareness for microscopic colitis.


Assuntos
Colite Microscópica/diagnóstico , Colite Microscópica/etiologia , Adulto , Idoso , Biópsia , Doença Crônica , Colite Colagenosa/diagnóstico , Colite Colagenosa/etiologia , Colite Colagenosa/patologia , Colite Linfocítica/diagnóstico , Colite Linfocítica/etiologia , Colite Linfocítica/patologia , Colite Microscópica/patologia , Diagnóstico Diferencial , Diarreia/etiologia , Diarreia/patologia , Feminino , Humanos , Mucosa Intestinal/patologia , Masculino , Pessoa de Meia-Idade , Qualidade de Vida
3.
Praxis (Bern 1994) ; 103(3): 149-54, 2014 Jan 29.
Artigo em Alemão | MEDLINE | ID: mdl-24468454

RESUMO

Colitis-associated colorectal carcinoma (CRC) accounts for about 5% of all CRC and the risk for CRC in inflammatory bowel disease (IBD) patients - according to older meta-analyses - is slightly increased when compared to normal population. Effective anti-inflammatory therapy seems to decrease this risk. Main risk factors for colitis-associated CRC are pancolitis, duration of colitis and presence of primary sclerosing cholangitis. In contrast to sporadic CRC, a characteristic adenoma-carcinoma sequence in the pathogenesis of colitis-associated CRC cannot be found. Nevertheless, numerous cell and gene defects occur. Reactive oxygen species also seem to play a pivotal role in the pathogenesis of colitis-associated CRC. Particularly patients with chronically active pancolitis should undergo regular surveillance colonoscopy, since prognosis of colitis-associated CRC is poor.


Le carcinome colorectal (CCR) associé à une colite est responsable pour environ 5% des CCR. Par ailleurs le risque de contracter un CCR pour un patient atteint d'une maladie inflammatoire chronique de l'intestin est légèrement accru par rapport à la population normale. Une thérapie anti-inflammatoire efficace semble réduire ce risque. L'inflammation qui touche le côlon en entier (pancolite), la durée de l'inflammation intestinale chronique ainsi que l'existence d'une cholangitie sclérosante primaire (PSC) comme facteurs de risque majeur. Contrairement au CCR sporadique, en cas de CCR associé à une colite, il n'existe pas de séquence adénome-carcinome caractéristique. Néanmoins, maintes défectuosités cellulaires ou génétiques peuvent être décelées dans la pathogénèse d'un CRC associé à une colite. Une coloscopie préventive serait indiquée notamment pour les patients souffrant d'une pancolite.


Assuntos
Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/patologia , Diagnóstico Precoce , Doenças Inflamatórias Intestinais/diagnóstico , Doenças Inflamatórias Intestinais/patologia , Anti-Inflamatórios/uso terapêutico , Transformação Celular Neoplásica/patologia , Colonoscopia , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/prevenção & controle , Humanos , Doenças Inflamatórias Intestinais/complicações , Doenças Inflamatórias Intestinais/epidemiologia , Programas de Rastreamento , Observação , Espécies Reativas de Oxigênio , Fatores de Risco
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