RESUMO
Mycoplasma penetrans, a rare bacterium so far only found in HIV-infected persons, was isolated in the blood and throat of a non-HIV-infected patient with primary antiphospholipid syndrome (whose etiology and pathogenesis are unknown).
Assuntos
Síndrome Antifosfolipídica/complicações , Bacteriemia/complicações , Infecções por Mycoplasma/complicações , Mycoplasma penetrans/isolamento & purificação , Adolescente , Feminino , Humanos , Infecções por Mycoplasma/diagnósticoRESUMO
The suitability of the natural 15N abundance and of total N concentration of leaves as indicators of the type of plant N nutrition in a rain forest of French Guiana were tested. Leaf samples from primary legume species, non-legumes (pioneer species) and from the non-N2-fixing species Dicorynia guianensis were analyzed. Both δ15N and total leaf N varied widely (-1 ?δ15N () ? 7 and 1 ? leaf N(%) ? 3.2) suggesting possible distinctions between diazotrophic and non-fixing plants. The δ15N also revealed two statistically distinct groups of non-N2-fixing species (δ15N = 5.14 ± 0.3 vs δ15Nâ=â1.65 ± 0.17) related to the different ecological behaviors of these species in the successional processes. We conclude that the δ15N signature of plant leaves combined with their total N concentration may be relevant indicators for identifying functional groups within the community of non-N2-fixing species, as well as for detecting diazotrophy. Despite the variability in the δ15N of the non-N2-fixing species, N2-fixing groups can still be identified, provided that plants are simultaneously classified taxonomically, by their leaf δ15N and total N concentration and by the presence or absence of nodules. The variability in the δ15N of the non-fixing species is discussed.
RESUMO
El presente estudio retrospectivo evaluó 112 pacientes operados por perforació tífica en el Hospital Belén, Trujillo, Perú entre los años 1967 a 1990 con la finalidad de identificar por análisis univariado factores que inflyen en la morbimortalidad operatoria. Todos los pacientes tuvieron una o más de los siguientes criterios diagnósticos: bacteriológico, serológico, anatomopatológico y quirúrgicos. Los procedimientos quirúrgicos efectuados fueron: sutura simple ( n=70 ), resección intestinal con anastomosis primaria ( n=6 ), resección intestinal más ileostomía ( n=33 ) y drenaje peritoneal solamente ( n=3 ). Los siguientes parámetros fueron evaluados: edad, sexo, tiempo de enfermedad, tiempo de perforación, hemorragia digestiva baja, recuento leucocitario, tipo de secreción peritoneal y número de perforaciones. La morbimortalidad fue únicamente influenciada por el tiempo de perforación mayor de 48 horas ( p menor que 0.05). El análisis de la morbimortalidad post-operatoria mostró a los siguientes factores asociados con su incremento: tiempo de perforación mayor de 48 horas ( p menor que 0.001 ), presencia de enterorragia ( p menor que 0.01 ), leucopenia ( p menor que 0.05 ), secreción peritoneal fecaloidea ( p menor que 0.05 ) o la evidencia de 3 o más perforaciones intestinales ( p menor que 0.05 ); factores que deben considerarse para un tratamiento oportuno y adecuado
Assuntos
Humanos , Indicadores de Morbimortalidade , Febre Tifoide/enfermagemRESUMO
This retrospective study evaluated 112 patients who had undergone surgery by typhoid perforation at the Belen Hospital, Trujillo, Peru, from 1967 trough 1990 in order to identify by univariate analysis the combination of factors predictive of postoperative morbidity and mortality. All the patients had one or more of the following diagnostic criteria: bacteriologic, serologic, anatomopathologic and surgical. The surgical procedures performed were: simple closure (n = 70), intestinal resection in conjunction with primary anastomosis (n = 6), intestinal resection plus ileostomy (n = 33), whilst peritoneal drainage operations were used in 3 cases. The following parameters were evaluated: age, sex, length of history, length of perforation, low intestinal hemorrhage, leukocyte count, type of peritoneal fluid and number of perforations. The operative mortality rate for all patients was 21.4% and morbidity rate was 80.4%. Significant differences in morbidity were only found in patients with perforations over 48 hours (p < 0.05). Analysis of post-operative mortality: length of perforation over 48 hours (p < 0.001), presence of hematochezia (p < 0.01), leukopenia (p < 0.05), fecaloid peritoneal fluid (p < 0.05) or the evidence of 3 or more intestinal perforations (p < 0.05). We concluded that a surgeon must take into account all of these factors to lead to satisfactory results.