Teste ergométrico e o Holter de 24 horas na detecção de arritmias ventriculares complexas em diferentes estádios da cardiopatia chagásica crônica Exercise testing and 24 hours Holter monitoring in the detection of complex ventricular arrhythmias in different stages of chronic Chagas' heart disease

Comparou-se o teste ergométrico com Holter de 24 horas na detecção de arritmias ventriculares complexas em diferentes estádios da cardiopatia chagásica crônica. Avaliados 71 pacientes sem outras doenças associadas, idade=51±10,3, metade mulheres. Divididos em quatro grupos conforme o grau de acometimento cardíaco. A estatística esta discriminada no corpo do trabalho. Ao Holter, no grupo IA as arritmias ventriculares complexas foram detectadas em 4,3%, IB em 25%, II em 55% e no grupo III em 90%. Nos grupos II e III não houve diferença entre os exames na detecção de arritmias ventriculares complexas (p=NS). Nos grupos IA e IB, houve uma concordância de 100% no teste ergométrico na não detecção de arritmias ventriculares complexas entre dois observadores. No grupo II, a concordância foi de 70% (kappa=0,368, p=0,003) e de 90% (kappa=0,78, p=0,002) no grupo III. Foi observado diferenças na presença de arritmias ventriculares complexas entre os pacientes dos grupos em fase inicial e avançada da cardiopatia chagásica crônica. Nos pacientes dos grupos II e III não houve diferença entre os dois exames na detecção das arritmias ventriculares complexas. Pacientes dos grupos IA e IB é razoável indicar Holter e/ou o teste ergométrico na ocorrência de progressão da doença.<br>To detect complex ventricular arrhythmias in different stages of chronic chagasic cardiopathy, the results of exercise testing to 24 hours Holter monitoring have been compared. We evaluated a group of 71 patients, half women, aged 51±10.3, with no others associated diseases. These patients were separated in 4 groups according to degree of cardiac involvement. Statistical data can be found elsewhere in the study. In group IA, Holter monitoring detected 4.3% of complex ventricular arrhythmias, group IB 25%, group II 55% and group III 90%. We found no difference between Holter and exercise testing in the detection of complex ventricular arrhythmias in groups II and III (p = ns). In groups IA and IB we found 100% concordance, concerning the no detection of complex ventricular arrhythmias by exercise testing seen by two independent examiners. In group II there was a 70% concordance (kappa=0.368, p=0.003) and 90% in group III (kappa=0.78, p=0.002). Different results were found, concerning the presence of complex ventricular arrhythmias, among patients in the initial and advanced stages of chronic chagasic cardiopathy. In groups II and III we found no difference between the two methods in the detection of complex ventricular arrhythmias. It seems reasonable to recommend either Holter on exercise testing in groups IA and IB if progression of disease is noticed

Codes, raw predation data on dummy caterpillars, and environmental data about urban green spaces across 26 Brazilian state capitals

Data collected by the Urban Predation Risk Network about predation pressure on dummy caterpillars exposed for eight days in 26 small green spaces and 24 forest patches across 26 Brazilian state capitals. The raw predation data describes the type of predator and the day in which each caterpillar was found with marks, as well as the sites' coordinates. The environmental data provides information for each site about precipitation, annual mean temperature, temperature seasonality, elevation, and coordinates. This database also provides summarized information about predation at each site, such as the total number of attacked caterpillars and the number of attacked caterpillars by each predator group. The data files contain a metadata sheet with a description of each column. The code provided was used to assess the local and large-scale drivers of predation pressure on dummy caterpillars in small green spaces and forest patches across 26 Brazilian cities