RESUMO
La miasis maxilar es un raro padecimiento tropical y endémico de varias zonas del mundo, propio de algunos mamíferos, y el hombre no es la excepción. A continuación presentamos el primer reporte de miasis de este tipo en Ecuador, caracterizamos una masiva invasión larvaria y analizamos casos similares reportados en la literatura médica (AU)
Maxillary myiasis is a rare tropical disease, it is endemic in several areas around the world, and common of some mammals, although humans are not excluded. The first case of maxillary myiasis in Ecuador is presented, as well as a description of the massive larval invasion. Similar cases reported in the medical literature are also reviewed (AU)
Assuntos
Humanos , Feminino , Adolescente , Miíase/complicações , Miíase/diagnóstico , Miíase/cirurgia , Infecção por Mosca da Bicheira/complicações , Infecção por Mosca da Bicheira/fisiopatologia , Infecção por Mosca da Bicheira/terapia , Lidocaína/uso terapêutico , Epinefrina/uso terapêutico , Miíase/tratamento farmacológico , Miíase/fisiopatologia , Dano Encefálico Crônico/complicações , Dano Encefálico Crônico/fisiopatologia , Combinação Amoxicilina e Clavulanato de Potássio/uso terapêutico , Anestesia Geral/métodos , Intubação Intratraqueal/métodos , Fatores de RiscoRESUMO
Condição mórbida causada por ectoparasitos - larvas de vetores dípteros. Podem ser classificados, de acordo com a natureza do agente etiológico, em específicas, semi-específicas e acidentes ou, ainda, em miíase cutânea ou cavitária. O diagnóstico é estabelecido em bases clínicas. O tratamento consiste na remoção mecânica de cada uma das larvas ou no oclusão do óstio de entrada da lesão, a fim de sufocar o parasito. O artigo objetiva a revisão de aspectos relevantes, correlacionados com a parasitose
Assuntos
Humanos , Infecção por Mosca da Bicheira/complicações , Infecção por Mosca da Bicheira/fisiopatologia , Infecção por Mosca da Bicheira/transmissão , Miíase/etiologia , Miíase/fisiopatologia , Miíase/terapia , Ivermectina , Larva , VirulênciaRESUMO
Acidic and non-acidic fractions from extracts of fluid from sheep wounds infested with larvae of Cochliomyia hominivorax (Coquerel) were analysed by linked gas chromatography and electroantennography in order to detect electrophysiologically-active compounds that could be potential attractants. Responses to twenty-six electrophysiologically-active compounds were observed and, on the basis of electron impact and chemical ionization mass spectrometry and co-chromatography with authentic compounds, twenty-five of these compounds were characterized. The most abundant compounds identified in the larval wound fluid were straight and methyl-branched aliphatic carboxylic acids, ranging from C2- to C5-carbon chain length. Butanoic acid, for example, was found to be present at approximately 0.45 mg/ml. Aliphatic carboxylic acids with longer chain lengths were also observed but in trace amounts. Three aromatic carboxylic acids, benzoic, phenylethanoic and 3-phenylpropanoic acids were also present but only phenylethanoic and 3-phenylpropanoic acids elicited electroantennographic responses. Phenol and indole were by far the most abundant components of the non-acid fraction of the larval wound fluid with all other components, except delta-valerolactam, present at levels of less than 5% that of phenol which was present at a concentration of 0.05 mg/ml. Electroantennographic studies of straight-chain aliphatic carboxylic acids showed that pentanoic acid elicited the strongest response from C. hominivorax. Similar studies showed that 1-octen-3-ol elicited stronger responses than 3-methylphenol, indole, phenol or dimethyldisulphide. 3-Methylindole, which was not found in the wound fluid, also elicited a strong response. The potential behavioural significance of these compounds is discussed in relation to that of known attractants of C. hominivorax and other dipteran pests of mammals.
