The value of pulse oximetry during the performance of a forced spirometry maneuver |
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Authors: | P Morales Marín E Cases Viedma L Compte Torrero J Francés Va?o A Hernández Sojo V Marco Martínez |
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Affiliation: | Servicio de Neumología, Hospital Universitario La Fe, Valencia. |
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Abstract: | Given that forced spirometry is the main routine exploration in any laboratory of pulmonary functional assessment, we have analyzed the behaviour of O2 arterial saturation (SaO2) during such maneuver in patients with airflow chronic obstruction (AFCO), in order to verify any potential alterations. We have studied three groups of patients: Group A, control, 17 healthy subjects; group B, 18 patients with AFCO and initial saturation higher than 90%; group C, 15 patients with AFCO and saturation equal to or lower than 90%. Total duration of the maneuver was significantly higher in groups B and C compared with the control group (p < 0.001). In groups A and B, we did not observed any significant reductions in SaO2 with respect to the initial value, although we did observed such differences in group C (p < 0.001). None of the patients presented a subjective clinical disorder, although the absence of both complexity and risk suggest the convenience of including the oximetry as an additional parameter when conducting a forced spirometry in patients with AFCO and respiratory failure. |
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