Update cookies preferences

Buy article

Continuous investigation of the nasal cycle over 48 hours

Volume: 62 - Issue: 3

First page: 362 - Last page: 369

J. Lindemann - M.O. Scheithauer - F. Sommer - T.K. Hoffmann - J. Hahn - J. Foerg

BACKGROUND: Previous results on the nasal cycle refer to measurements over up to 24h. The long-term rhinoflowmetry (LRFM) allows continuous observations over a longer period. The aim of the study was to observe the nasal cycle for the first time over 48h under everyday conditions.
METHODOLOGY: The LRFM was continuously applied to 30 rhinologically healthy subjects (20 female, 10 male) over 48h. The different types of nasal cycle were classified as follows: "classic", in concert", "one-sided";, "no-cycle" and "mixed". The focus of this study was on the results over the entire 48 hours. The comparison of the two consecutive days was also made.
RESULTS: A nasal cycle could be detected in 100% of the subjects over 48h. With 97%, the mixed type most commonly occurred as a combination of classical and in concert components. In all subjects, classical cycle components could be detected at least once. The no-cycle type was not observed. In the awake state, the mixed type dominated (80%), as a combination of classical and in concert parts. In the sleep state, the classical type was the most common type (97%). The average phase duration was 206 ± 83 minutes.
CONCLUSIONS: In the very first continuous 48-hour study on the nasal cycle, 100% of the subjects presented a nasal cycle. The LRFM method is the only one that offers the possibility to perform continuous measurements over a longer period during daily routine. The results of previous single-stage examination methods should thus be questioned.

Rhinology 62-3: 362-369, 2024

To see the issue content and the abstract you do not have to login

Please login to download the full articles

If you do not have a subscription to Rhinology please consider taking one.

Click here to become a member of the European Rhinologic Society and a subscriber to the journal `RHINOLOGY`, from 2024. Subscription including membership fee: Euro 135.-