emergency physician's diagnosis of stroke subtype: an accuracy study diagnóstico dos subtipos de acidente vascular cerebral: um estudo de acurácia com médicos de emergência

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ID: 158560
1998
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Abstract
OBJECTIVE: To evaluate the accuracy of clinical unstructured and structured diagnosis of acute stroke subtypes -- cerebral haemorrhage (CH), cerebral infarction (CI), subarachnoid haemorrhage (SAH). METHODS: Sixty consecutive patients with acute stroke admitted to the Emergency Ward of a Brazilian University Hospital were examined by emergency physicians and computerised tomography (CT). We also compared it (physician's unstructured diagnosis) to two published clinical scoring systems (structured diagnosis - Guy's Hospital and Siriraj Hospital) applied to three other populations -- regarding the operational characteristics of the tests. RESULTS: In our personal data, among 9 variables that could discriminate CH and CI, three have statistically significant difference (p <0.05): headache (p=0.0002) and vomiting (p=0.02) occurred more frequently in CH patients, but previous stroke in those with CI (p=0.04). Unstructured diagnosis proved valid for SAH, with a +LHR= 39.7; and to a smaller degree for CI (-LHR= 0.1). However, it exhibited low sensitivity for the diagnosis of CH. Structured tests (Guy's Hospital and Siriraj Hospital) also failed to confidently diagnose stroke subtypes, especially CH. CONCLUSIONS: Both clinical diagnosis (made by emergency physicians) and the available diagnostic tests fail to confidently discriminate CH and CI.
OBJETIVO: Avaliar a acurácia do diagnóstico clínico não estruturado e do estruturado dos subtipos do acidente vascular cerebral (AVC): hemorragia cerebral (HC), infarto cerebral (IC), hemorragia subaracnóide (HSA). MÉTODO: Sessenta pacientes com AVC consecutivamente admitidos em emergência de hospital universitário brasileiro foram examinados por médicos da emergência e por tomografia computadorizada (TC). Nós também comparamos isso (diagnóstico clínico não estruturado) com os resultados de dois testes diagnósticos estruturados sobre AVC da literatura (Guy's Hospital e Siriraj Hospital) aplicados a três outras populações -- com atenção às características operacionais dos testes. RESULTADOS: Em nossos dados pessoais, entre nove variáveis que poderiam discriminar HC e IC, três apresentaram diferenças significantes estatisticamente (p<0.05): cefaléia (p=0.0002) e vômito (p=0.02) ocorreram mais frequentemente naqueles com HC, mas AVC prévio naqueles com IC (p=0.04). Diagnóstico não estruturado mostrou-se válido para HSA, com +LHR= 39.7; e em menor grau para IC (-LHR= 0,1). No entanto, ele exibiu baixa sensibilidade para o diagnóstico de HC. Testes estruturados (Guy's Hospital and Siriraj Hospital) também falharam para o diagnóstico seguro dos subtipos de AVC, especialmente da HC. CONCLUSÃO: O diagnóstico clínico (feito por médicos de emergência) e os instrumentos diagnósticos estudados não diferenciam de modo confiável HC e IC.
Reference Key
gomes1998arquivosemergency Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Marleide DA Mota Gomes, Monica Fonseca Costa, Charles André, Raquel Gomes, Sérgio A.P. Novis
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Journal communications in computer and information science
Year 1998
DOI
10.1590/S0004-282X1998000400001
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1998000400001
Keywords
diagnosis cerebrovascular disease diagnóstico neuropsychiatry biological psychiatry medical educationneurosciences

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