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DIAGNOSTICO Y TRATAMIENTO DE SINUSITIS AGUDA

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When bronchi become obstructed, airfl ow decreases, and its volume is assessed with pul- monary peak fl ow measurements (Quanjer et al. 1997).When the nose is obstructed for one reason or another, the airfl ow decreases as well (Pallanch et al. 1998). Nasal modifi cations of pulmonary peak fl ow measurement, PNIF and PNEF measurements, correlate with the degree and sensation of nasal blockage (Åhman 1992; Fairley et al. 1993). PNIF has served in evalua- tion of the effi cacy of medication (Benson 1971), in domiciliary measurement of allergic rhinitis (Wilson et al. 2000), and in.