Unique ID issued by UMIN | UMIN000054885 |
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Receipt number | R000058182 |
Scientific Title | A comparison of sleep apnea parameters between two different combinations of polysomnography equipment and analysis center |
Date of disclosure of the study information | 2024/07/18 |
Last modified on | 2024/07/23 15:14:45 |
A comparison of sleep apnea parameters between two different combinations of polysomnography equipment and analysis center
Uniformity of PSG analyses
A comparison of sleep apnea parameters between two different combinations of polysomnography equipment and analysis center
Uniformity of PSG analyses
Japan |
sleep apnea syndrome
Pneumology | Adult |
Others
NO
Polysomnography (PSG) is known as the gold standard to make a diagnosis and severity of sleep apnea syndrome. The national health assurance permits to use nasal positive airway therapy when apnea hypopnea index (AHI) is equal to or higher than 20 times/h using PSG or 40 times/h using simplified PSG in Japan. Analysis of PSG is usually performed by a polysomnographer authorized by Japanese Society of Sleep Research. However, scoring variability between polysomnography technologists in different sleep laboratories has been reported, and recently new equipment for PSG study are also developed. Although reproducibility of scorings by different polysomnographers has been confirmed in a few scoring companies, inter-variabilities among different companies or different equipment are yet to be done. Therefore, the major outcome is uniformity of AHIs obtained by different equipment and different scoring companies.
Others
When AHIs obtained by different equipment and different scoring companies are significantly differ, some parameters obtained by PSG are set as description variables.
They include body mass index (BMI), apnea index (AI), total sleep time (TST) WASO arousal index (arousals), sleep latency (SL), total recording time (TRT), percentage of stage 3 sleep (N3), supine time (Tsup), not-supine time (Tnsup), AHI at supine posture (AHIsup), AHI at not-supine time (AHInsup), and 3% oxygen desaturation index (ODI3).
Observational
20 | years-old | <= |
90 | years-old | >= |
Male and Female
Tho patients, who were suspected to be suffering from sleep apnea syndrome, and were examined with PSGs Alice or NoxA1 system.
The patients who refused to be a participant.
800
1st name | Tetsuri |
Middle name | |
Last name | Kondo |
Shonan Fujisawa Tokushukai Hospital
Department of Respiratory Medicine
251-0041
1-5-1 Kandai Tsujido, Fujisawa, Kanagawa
+81466351177
tetsuri@ctmc.jp
1st name | Tetsuri |
Middle name | |
Last name | Kondo |
Shonan Fujisawa Tokushukai Hospital
Department of Respiratory Medicine
251-0041
1-5-1 Kandai Tsujido, Fujisawa, Kanagawa
0466351177
tetsuri@ctmc.jp
Shonan Fujisawa Tokushukai Hospital
Tetsuri Kondo
not required
Other
The Tokushukai Group Ethics Committee
Tokyodo Chiyoda Bldg. 15F, 1-3-1, Kudan-minami, Chiyoda-ku, Tokyo 102-0074, Japan
03-3263-4801
mirai-ec1@mirai-iryo.com
NO
2024 | Year | 07 | Month | 18 | Day |
Partially published
528
The difference in AHI between Group A (Alice+Phillips) and Group N (Nox+Teijin) was significant. In multiple correlation analysis, the prediction equation was established for two indices in both groups, ODI and arousal response (AIx), with a greater contribution from AIx in group A and from ODI in group N. ODIs are objective changes, but AIx is largely dependent on the analyst's subjectivity, so it is assumed that the evaluation of AIx influenced the difference in AHI.
2024 | Year | 07 | Month | 05 | Day |
No longer recruiting
2023 | Year | 05 | Month | 16 | Day |
2023 | Year | 06 | Month | 28 | Day |
2023 | Year | 07 | Month | 01 | Day |
2024 | Year | 05 | Month | 28 | Day |
The 47th Annual meeting of Japanese Society of Sleep Research
The 48th Annual meeting of Japanese Society of Sleep Research
2024 | Year | 07 | Month | 05 | Day |
2024 | Year | 07 | Month | 23 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000058182
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