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Revista de la Universidad Industrial de Santander. Salud

Print version ISSN 0121-0807

Abstract

MENDEZ DUARTE, Claudia Ximena et al. Usefulness of the tourniquet test in the differential diagnosis of Dengue of others febrile syndromes. Rev. Univ. Ind. Santander. Salud [online]. 2013, vol.45, n.2, pp.49-55. ISSN 0121-0807.

Introduction: Dengue is a mosquito-borne infection most important in the world. The infant population is more susceptible to infection. In the early stage of the disease the symptoms are indistinguishable from others acute febrile syndromes, a situation that makes it complex, slow and little sensitive the clinical diagnosis in the acute phase of illness. The tourniquet test is used as a classification criterion to define the severity of dengue hemorrhagic fever by the World Health Organization and could be used in the differential diagnosis of dengue. Objective: To evaluate in children the operational characteristics of the tourniquet test in the differential diagnosis of dengue from acute febrile other syndromes. Methods: Between June 2006 and April 2008 were included patients between two and 12 years, who had a fever without apparent source in the emergency department. Were evaluated by a standardized physical examination with the tourniquet test. We calculated the sensibility, specificity, positive predictive value (PPV) and negative (NPV) to the test. Results: 129 patients were captured and 66 dengue cases were diagnosed. The tourniquet test had a sensitivity of 60.6% (95% CI = 48.8-72.4), specificity 55.9% (95% CI = 43.3-68.6), PPV 60.6% (95% CI = 48.8-72.4) and NPV 55.9%. (95% CI = 43.3-68.6). The result of the test was associated with tourniquet tolerance time (p <0.001). Conclusions: The tourniquet test by itself is not useful as a clinical tool to differentiate dengue from other febrile syndromes in children between two and 12 years in endemic areas.

Keywords : Dengue; tourniquet test; diagnostic test; sensibility; children.

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