ABSTRACT
Background: Nasal obstruction is an annoying condition. In this study, we evaluated the effects of hot spring bathing at 41 to 42°C using a rhinomanometer. Methods: Ten healthy adult volunteers (10 men, mean age of 27.8±4.4 years) were asked to bathe in a hot spring for 10 minutes. Using a rhinomanometer (HI-801), nasal resistance was measured before and after bathing by active anterior rhinomanometry. Total nasal resistance was calculated using Ohm’s law formula with right and left nasal resistance values (1/T=1/R+1/L, T: bilateral resistance, R: right resistance, L: left resistance). Resistance at ΔP=100 Pa was used for evaluation. Results: Right and left nasal resistance values were significantly decreased after bathing in subjects with a pre-bathing nasal resistance of greater than 0.75 Pa/cm3/s (inspiratory, P=0.0117; expiratory, P=0.0277; Wilcoxon t-test). No significant change was observed in subjects with a pre-bathing nasal resistance of below 0.75 Pa/cm3/s.Post-bathing total nasal resistance was significantly decreased in subjects with a pre-bathing nasal resistance of greater than 0.5 Pa/cm3/s (P=0.0115; Wilcoxon t-test). Conclusion: This study showed that nasal obstruction can be improved by hot spring bathing, which may contribute to the reasons why cold symptoms are relieved by hot spring bathing.
ABSTRACT
<B>Background:</B> Nasal obstruction is an annoying condition. In this study, we evaluated the effects of hot spring bathing at 41 to 42°C using a rhinomanometer.<br><B>Methods:</B> Ten healthy adult volunteers (10 men, mean age of 27.8±4.4 years) were asked to bathe in a hot spring for 10 minutes. Using a rhinomanometer (HI-801), nasal resistance was measured before and after bathing by active anterior rhinomanometry. Total nasal resistance was calculated using Ohm’s law formula with right and left nasal resistance values (1/T=1/R+1/L, T: bilateral resistance, R: right resistance, L: left resistance). Resistance at ΔP=100 Pa was used for evaluation.<br><B>Results:</B> Right and left nasal resistance values were significantly decreased after bathing in subjects with a pre-bathing nasal resistance of greater than 0.75 Pa/cm<SUP>3</SUP>/s (inspiratory, <I>P</I>=0.0117; expiratory, <I>P</I>=0.0277; Wilcoxon <I>t</I>-test). No significant change was observed in subjects with a pre-bathing nasal resistance of below 0.75 Pa/cm<SUP>3</SUP>/s.Post-bathing total nasal resistance was significantly decreased in subjects with a pre-bathing nasal resistance of greater than 0.5 Pa/cm<SUP>3</SUP>/s (<I>P</I>=0.0115; Wilcoxon <I>t</I>-test).<br><B>Conclusion:</B> This study showed that nasal obstruction can be improved by hot spring bathing, which may contribute to the reasons why cold symptoms are relieved by hot spring bathing.
ABSTRACT
The primary objective of this study was to determine whether adenoid hypertrophy and subsequent adenoidectomy affect pediatric nasal airway resistance and nasal geometry. The secondary objective was to evaluate the relationships between the degree of adenoid hypertrophy and nasal airway resistance or nasal geometry. Fifty-one children, aged 5 to 10 years, selected for adenoidectomy due to chronic nasal obstruction and mouth breathing were enrolled. The size of adenoid was evaluated by cephalometric radiograph. Nasal airway resistance and nasal geometry were evaluated by active anterior rhinomanometry and acoustic rhinometry respectively. These measurements were repeated 3 months after operation. The size of adenoid was found well correlated to preoperative nasal airway resistance but was not to preoperative nasal geometry. Nasal geometry was not changed after operation. However, nasal airway resistance was reduced significantly at 3 months after operation and the size of adenoid was found well correlated to postoperative changes of nasal airway resistances.
Subject(s)
Child , Humans , Adenoidectomy , Adenoids , Airway Resistance , Hypertrophy , Mouth Breathing , Nasal Obstruction , Rhinomanometry , Rhinometry, AcousticABSTRACT
Active anterior rhinomanometry (AAR) was performed in 42 patients with low-profile or saddle noses before augmentation rhinoplasty (AR) and after AR. The purpose was to measure nasal airway resistance (NAR) and nasal airflow (NAF). There were 38 females and 4 males, whose ages ranged from 15 to 42 years (mean 29.6 years). Preoperative total NAR at 75 Pascals (Pa) was 0.24+/-0.09 and 0.20+/-0.06 Pa/ml/sec for the non-decongested and decongested value respectively. Two weeks postoperatively, the total NAR was 0.19+/-0.06 and 0.15+/-0.05 Pa/ml/sec for the non-decongested and decongested value respectively, which was significantly less than the preoperative value. The postoperative total NAF was 422.31+/-137.05 cm3 and 514. 57+/-152.45 cm3 for the non-decongested and decongested value respectively, which was significantly increased when compared to the preoperative value (342.57+/-109.27 cm3 and 399.90+/-106.98 cm3 for the non-decongested and decongested value respectively). The comparison between the changes in NAR and subjective nasal breathing showed that the postoperative NAR decreased in 88.10% of patients while subjective nasal breathing improved in only 52.38%. Postoperative NAR increased in 9.52% of patients, while subjective nasal breathing was worsened in 2.38%. The results of this study indicate that AR has decreased the NAR and increased NAF, and thus improving the nasal breathing. From this preliminary study it is concluded that AR is useful not only for the aesthetic aspect but also for its effect on the function of the nose, especially on the improvement of nasal breathing.
Subject(s)
Female , Humans , Male , Airway Resistance , Nose , Respiration , Rhinomanometry , RhinoplastyABSTRACT
Active anterior rhinomanometry was performed for the first time on one hundred and forty-six Thai adults without nasal symptoms. The subjects were divided into two groups : group I – with normal rhinoscopic appearance and Group II – with slight septal deformity. Transnasal airflow and nasal airway resistance (NAR) were measured by ATMOS Rhinomanometer 220 in each subject before and after decongestion. The statistical analysis showed that the nasal airflow and ANR in both groups were not significantly different. The normal NAR at a differential pressure of 75 Pascals in Thai adults was 0.22 + 0.10 Pa/cc/sec before decongestion and 0.16 + 0.06 Pa/cc/sec after decongestion. This value is slightly lower than the average NAR reported in Caucasian and in Negroid Nigerians. We also found that NAR in female subjects was significantly higher than in males. There was no correlation between NAR and age and weight, but a statistically significant inverse correlation with the height of the subject was observed.