El efecto placebo
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Transcript of El efecto placebo
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El efecto placebo
Wednesday, March 2, 2011
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Definición
• Sustancia que, careciendo por sí misma de
acción terapéutica, produce algún efecto
curativo en el enfermo, si este la recibe
convencido de que esa sustancia posee
realmente tal acción.
Diccionario de la Lengua Española - Real Academia Española, ed. 23
Wednesday, March 2, 2011
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Pregunta
• ¿Le darías placebo a un paciente en el que sabes le aliviará un dolor o una molestia, sabiendo que lo estás engañando?
A. Sí
B. No
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Elisha Perkins1740-1799
4 guineas=9500 MXN pesos de
2010
Tractores metálicos
Wednesday, March 2, 2011
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1799
John Haygarth
Experimentó en 5 pacientes en un
estudio simple ciego
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• Primero se probaron los tractores “falsos”= de 5 pacientes 4 mejoraron.
• Seguido se probaron los “reales”= de 5 pacientes 4 mejoraron.
Haygarth, J., Of the Imagination, as a Cause and as a Cure of Disorders of the Body; Exemplified by Fictitious Tractors, and Epidemical Convulsions (New Edition, with Additional Remarks), Crutwell, (Bath), 1801.
Wednesday, March 2, 2011
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¿Qué “cura” más?
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inyección vs píldoras
A B
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dos píldoras vs cuatro
A BWednesday, March 2, 2011
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A B
$ 25.00 MXNFarmacias similares
$ 500.00 MXNFarmacias alta alcurnia
en La Colonia
Wednesday, March 2, 2011
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¿Cuál tableta es más probable que te produzca sueño?
Moerman DE. Cultural variations in the placebo effect: ulcers, anxiety, andblood pressure. Med Anthropol Q. 2000 Mar;14(1):51-72.
A B
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Wednesday, March 2, 2011
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arteria mamaria ligada
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arteria mamaria ligada
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marcapasos
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marcapasos
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Wednesday, March 2, 2011
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GRACIAS
Wednesday, March 2, 2011