The primary aim of this study was to assess whether Fractional Exhaled Nitric Oxide (FeNO) and Nasal Nitric Oxide (nNO) can be used as a mean of diagnosis in Allergic Rhinitis (AR) without asthma or not , and discuss their correlation. Fifteen healthy children and thirty children with AR, but without asthma, were enrolled. A questionnaire about clinical features of AR children had been complete...

and the lack of a response to hyperventilation, may not relate to asthma so much as they relate to disease severity or patient age. Finally, changes in responsiveness induced by allergen stimulation are not related to baseline AHR. This suggests that chronic persistent AHR may have underlying mechanisms that differ from those responsible for short-term changes in AHR induced by inflammation. Ou...

Background and objective: The use of fractional exhaled nitric oxide (FeNO) concentration has been proposed as a surrogate marker for monitoring airway response to specifi c inhalation challenge (SIC). We investigated the usefulness of FeNO measurements for monitoring airway response to SIC with occupational agents. Material and methods: Workers with suspected occupational asthma were recruited...

Introduction Nitric Oxide Source of NO in exhaled air Measurement Asthma COPD Cystic fibrosis Bronchiectasis Primary ciliary dyskinesia Rhinitis Interstitial lung diseases Pulmonary hypertension Occupational diseases Infections Chronic cough Lung cancer Lung transplant rejection Adult respiratory distress syndrome Diffuse Panbronchiolitis Carbon Monoxide Source of exhaled CO Measurement Asthma ...

As the field of exhaled breath research is expanding, the question that arises is can the old usual method of spirometry be used in all cases? The answer is yes for some analysation methods and definitely not for others: it all depends on the result you are looking for. Exhaled breath condensate collection can be accomplished with silent tidal breathing, but not in the analysation of the amount...