Frecuencia y pertinencia del perfil lipídico como examen inicial en vértigo periférico / Lipid profile frequency and relevancy as an initial test for peripheral vertigo

Objetivos Determinar la prevalencia de la solicitud del perfil lipídico como ayuda diagnóstica de primera línea en pacientes con impresión clínica de vértigo periférico, así como un análisis de la relación costo-beneficio de dicha solicitud. Métodos Estudio de tipo corte transversal retrospectivo. Revisión de 201 historias de pacientes atendidos en la consulta externa tanto de especialistas como de médicos generales de la Clínica Universitaria Teletón y Casa chía, con diagnóstico de vértigo periférico, en el periodo comprendido entre enero de 2005 y julio de 2008. Resultados Las edades de los pacientes oscilaron entre 6 y 87 años, el 36 % de sexo masculino y el 64 % femenino. El perfil lipídico fue solicitado como prueba diagnóstica inicial para el manejo de vértigo a un 76 % de los pacientes. Los perfiles lipídicos hallados fueron normales en el 80 % de los pacientes a quienes se les solicitó. Se presenta el análisis de la relación costo-beneficio de esta prueba. Conclusiones Existe una alta prevalencia de solicitud de perfil lipídico como estudio de primera línea en el abordaje de pacientes con vértigo periférico, aunque no existe evidencia que avale esta solicitud, se requiere retroalimentación al cuerpo médico tanto de atención primaria como especialistas.

Objective Determining the prevalence of requesting lipid profile as a first-line diagnostic method in patients having a clinical impression of peripheral vertigo and also determining such request's cost- benefit ratio. Methods This was a retrospective cross-sectional study of 201 clinical charts regarding patients diagnosed as having peripheral vertigo at the Teletón teaching hospital's outpatient services in Chía between January 2005 and July 2008. Clinical charts drawn up by both general practitioners and medical specialists at first-time visit were compiled and analyzed Results The patients were aged 6 to 87 years old; 36 % were males and 64 % females. Lipid profile was requested for 76 % of the patients as initial diagnostic method; it was found that 80 % of the results revealed no abnormality. Conclusion Although a high prevalence regarding a request for lipid profile first-line study was found for patients having peripheral vertigo, there was no scientific evidence supporting such requirement. Ordering this kind of study not only increases unnecessary costs concerning diagnostic methods but also involves unjustified treatment. Feedback is needed for both doctors and first attention staff to ensure that this type of practice becomes changed.

Socioeconomic Costs of Overweight and Obesity in Korean Adults

This study was conducted to estimate the socioeconomic costs of overweight and obesity in a sample of Korean adults aged 20 yr and older in 2005. The socioeconomic costs of overweight and obesity include direct costs (inpatient care, outpatient care and medication) and indirect costs (loss of productivity due to premature deaths and inpatient care, time costs, traffic costs and nursing fees). Hypertension, diabetes mellitus, dyslipidemia, ischemic heart disease, stroke, colon cancer and osteoarthritis were selected as obesity-related diseases. The population attributable fraction (PAF) of obesity was calculated from national representative data of Korea such as the National Health Insurance Corporation (NHIC) cohort data and the 2005 Korea National Health and Nutrition Examination Survey (KNHANES) data. Direct costs of overweight and obesity were estimated at approximately U$1,081 million equivalent (men: U$497 million, women: U$584 million) and indirect costs were estimated at approximately U$706 million (men: U$527 million, women: U$178 million). The estimated total socioeconomic costs of overweight and obesity were approximately U$1,787 million (men: U$1,081 million, women: U$706 million). These total costs represented about 0.22% of the gross domestic product (GDP) and 3.7% of the national health care expenditures in 2005. We found the socioeconomic costs of overweight and obesity in Korean adults aged 20 yr and older are substantial. In order to control the socioeconomic burden attributable to overweight and obesity, effective national strategies for prevention and management of obesity should be established and implemented.