Should we consider paranasal and chest computed tomography in severe asthma patients?

BACKGROUND: It is essential to recognize and treat findings that can simulate or worsen symptoms to improve asthma control and thereby to reduce costs. Guidelines highlight a paranasal (PS) and chest computed tomography (CT) scan as a tool for disease evaluation and, although they suggest its indication in patients whom presentation is atypical, there are not well-defined criteria. OBJECTIVES: To describe the most common findings in the PS and chest CT in severe asthma patients and to analyse the characteristics of asthmatics with the finding of nasal polyps or bronchiectasis. METHODS: We retrospectively reviewed the medical records of 161 adults with confirmed severe asthma who had undergone to PS and/or chest CT. Clinical data from their electronic health record and the findings from a PS and/or chest CT within the last five years were collected. RESULTS: In the PS CT, 70.5% of patients presented mucous thickening and 46.7% presented nasal polyps. Both findings were associated with male gender and level of blood eosinophils. In chest CT, 28% of individuals showed atelectasis, 16.5% air trapping, 17.7% affectation of the small airway, 11.6% pulmonary infiltrates and 10.4% emphysema. Bronchiectasis were identified in 60.4% of subjects, who were older and had poorer lung function. CONCLUSION: Paranasal and thoracic computed tomography are important tools in the treatment of severe asthma because they allow us to detect highly prevalent findings in this disease that can lead to poorer control of it.

[Do the morning peak in blood pressure, age and gender affect the need to change hypertension treatment because of inefficacy?]. / Influyen el pico matutino de la presión arterial, la edad y el sexo en la necesidad de cambio de tratamiento antihipertensivo por ineficacia?

OBJECTIVE: To evaluate if the timing coincidence of morning rise of arterial blood pressure (BP) and morning turn of clinic BP measurement in our primary healthcare center implies an increased risk of switching antihypertensive drugs because of inefficacy with respect to afternoon staff turn. We also describe age and sex differences. DESIGNAND SETTING: A historical cohort study. We recorded all changes of antihypertensive drugs because of inefficacy of patients of 7 urban primary care clinics during the period from october 1997 to september 1999. MEASUREMENTS: We compared the incidence of changes per 1000 months of prescription of morning and afternoon turns, men and women, older and younger patients than 75 and 65 years old. RESULTS: The mean age of 1152 patients was 69.5 years old. The relation men:women in morning and afternoon turns was similar. Relative risk of switching in morning/afternoon turns was 0.82 (95% CI, 0.61-1.10). Sex and age did not affect the results. If the turn was not considered, younger patients and men had increased risk of being switched. Male adults (< 65 years old) relative risk against female was 1.62 (95% CI, 1.07-2.47). Older patients than 65 year had the RR inverted: RR men/women: 0.78 (95% CI, 0.51-1.21). CONCLUSION: Morning rise of BP did not provoque an increased risk of switching antihypertensive drugs in morning turn with respect to afternoon turn. Male adults had increased risk of switching with respect to women. Older women than 65 years old had more risk than men to be changed.

¿Influyen el pico matutino de la presión arterial, la edad y el sexo en la necesidad de cambio de tratamiento antihipertensivo por ineficacia? / Have morning rise of arterial blood pressure, age and gender any influence on antihypertensive drug switching of because of inefficacy?

Objetivo. Comprobar si la coincidencia del horario de toma de presión arterial (PA) del turno de mañana con el pico matutino de PA supone una necesidad mayor de cambio de fármacos hipotensores por ineficacia respecto al turno de tarde. Analizamos también la influencia de la edad y el género en los cambios de tratamiento globales por ineficacia. Diseño. Estudio de cohorte histórico. Emplazamiento. Siete consultas médicas urbanas de atención primaria. Participantes. Todos los pacientes registrados como hipertensos. Mediciones principales. Revisión de las historias clínicas, registrando los cambios de fármacos hipotensores por ineficacia entre octubre de 1997 y septiembre de 1999. Se comparó la incidencia de cambios por mil meses de prescripción entre el turno de mañana y tarde, entre varones y mujeres y entre mayores y menores de 75 y 65 años. Resultados. La edad media de los 1.152 pacientes fue de 69,5 años, con una distribución por sexo similar en los grupos de mañana y tarde. El riesgo relativo (RR) de cambio del turno de mañana respecto al de tarde fue de 0,82 (IC del 95 por ciento, 0,61-1,10) sin influir la edad y el sexo. Independientemente del turno, los pacientes más jóvenes y los varones tenían más probabilidad de cambiarles el tratamiento. El riesgo era mayor en adultos varones menores de 65 años respecto a mujeres: RR, 1,62 (IC del 95 por ciento, 1,07-2,47). En mayores de 65 años el riesgo se invertía con más cambios en mujeres: RR, 0,78 (IC del 95 por ciento, 0,51-1,21).Conclusiones. El pico matutino de PA no provoca más cambios de tratamiento por ineficacia en los pacientes atendidos en el turno de mañana. En nuestra población se cambia el tratamiento antihipertensivo por ineficacia con más frecuencia a los varones menores de 65 años que a las mujeres, y en mayores de 65 años esta proporción se invierte (AU)