role of impulse oscillometry in assessment of airway obstruction in smokers and ex-smokers

Impulse oscillometry provides useful clinical information that prominently includes functional assessment of small, peripheral airway behavior beyond that available from commonly used pulmonary function tests [PFT]. The aim of this study was to assess the role of impulse oscillometry in assessment of airway obstruction in smokers and ex-smokers. Sixty subjects divided into three groups [asymptomatic smokers, ex-smokers and non smoker healthy subjects as a controls] all were assessed by spirometry and IOS. Based on the IOS results in smokers, there was 17 negative cases and only 3 diseased cases, the calculated Specificity of spirometry [ability to detect negative cases as negative] 100%, while its sensitivity [ability to detect diseased cases as diseased] was only 33% as it was able to detect one diseased case from a total of three cases .In ex-smokers, there was 13 negative cases and only 7 diseased cases, the calculated Specificity of spirometry [ability to detect negative cases as negative] 100%, while its sensitivity [ability to detect diseased cases as diseased] was only 42.8% as it was able to detect 3 diseased case from a total of 7 cases. In controls, there was 18 negative cases and two diseased cases, the calculated Specificity of spirometry [ability to detect negative cases as negative] 100%, while its sensitivity [ability to detect diseased cases as diseased] was 50% as it was able to detect 1 diseased case from a total of 2 cases. IOS is an effective, easy to perform, and a non invasive method for the assessment of airway obstruction in obstructive pulmonary disorders. Although, there is no significant difference between impulse oscillometry and spirometry parameters in early detection of airway obstruction in smokers and ex-smokers groups

Valores normales de presión arterial en recién nacidos sanos en las primeras 72 horas de vida / Blood pressure reference values in healthy full-term newborn during the first 72 hours of life

Introducción. Para establecer valores normales de presión arterial en el recién nacido a término en las primeras 72 horas de vida mediante osilometría, método no invasivo con elevada confiabilidad y reproducibilidad, examinamos una cohorte de recién nacidos sanos. Material y métodos. Medición de presión arterial sistólica, media y diastólica en períodos de 12 horas durante las primeras 72 horas de vida, en recién nacidos con edad gestacional entre 37 y 42 semanas y peso al nacer entre 2500 y 4500 g. Se compararon entre sí los valores obtenidos para los diferentes grupos de peso al nacer y sexo. Resultados. En 7750 mediciones, no encontramos diferencias con significado clínico atribuíbles a sexo peso o edad postnatal. Los resultados se expresan como gráficas percentilares combinadas para ambos sexos dentro del rango de peso referido. Conclusiones. Establecemos valores normales de presión arterial para el período en nuestra población, que permitirán identificar desviaciones en individuos potencialmente enfermos