The Snoring Spectrum: Discussion

In: Snoring

17 Aug 2014

The Snoring Spectrum: DiscussionThe same equipment was used to measure and record snoring sound intervals for all study patients. While each recording was made, technicians subjectively verified that the noisy breathing sounds being recorded were made by snoring. The acoustic analyses of the snoring sound intensity data were performed using methods that are used by OSHA to determine the intensity of noise pollution in the workplace, and by other governmental agencies, including the MPCA, to monitor environmental noise. These methods had not been used previously for sleep study purposes. Government and industrial hearing conservation programs based on OSHA standards recommend that hearing protection be used if the average sound intensity reaches 85 dBA for > 8 h, and mandate that hearing protection be used at levels of > 90 dBA for > 8 h. Without hearing protection, the amount of exposure allowed is 4 h at 95 dBA, and the time decreases by half for each additional 5 dBA. Our data does not support the proposition that hearing loss may result in a significant number of individuals as a consequence of sleeping with a snoring bed partner, as previously suggested.
On the other hand, there is no doubt that many snoring men and women regularly disturb the sleep of their bed partner read only buy ventolin inhaler. The results of this study are consistent with this observation. The MPCA regulatory objective of a nighttime internal home L10 value of 35 to 40 dBA is equivalent to an outdoor residential L10 value of 55 dBA, presuming approximately 20 dBA of structural damping. When sound stimuli reach intensities of 40 to 50 dBA, changes in EEG can be observed; at 70 dBA, arousal or awakening are imminent. Previous studies- have shown that noise events between the Leq values of 36 to 56 dBA during sleep can lead to an increase in cardiac arrhythmias and excretion of urinary catecholamines. Another recent study showed that in two hospitals with environmental Leq values, respectively, of 54 and 46 dBA, the subjective sleep quality of men was significantly better in the quieter hospital. In our study, an L10 value of 40 dBA was exceeded by 78.7% of the patients, and an L10 value of 50 dBA was exceeded by 34.4% of the patients. An Leq value of 38 dBA was exceeded by 84.7% of the patients. Patients with breathing stoppage as their chief complaint had significantly higher snoring sound intensity levels, and 48% percent of these patients had Leq values ranging from 50 to 70 dBA.


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