Durability, safety, ease of use and reliability of a type-3 portable monitor and a sheet-style type-4 portable monitor

作者：Kadotani Hiroshi^*; Nakayama Ashida Yukiyo; Nagai Yumiko

来源：Sleep and Biological Rhythms, 2011, 9(2): 86-94.

DOI：10.1111/j.1479-8425.2011.00491.x

• actigraphy
• durability
• ease of use
• portable monitor
• reliability
• sleep apnea

Portable monitors (PMs) are widely used to monitor sleep apnea syndromes. However, the durability, safety, and ease of use of PMs have not been well documented. We examined these factors with a type-3 (cardio-respiratory) PM and a sheet-style type-4 PM in unattended home settings. A cross-sectional survey was conducted on male employees of a wholesale company in Osaka, Japan (n = 139, age = 44.4 +/- 8.36 years). Participants used either of the two PMs on the second and third nights and both of the PMs on the fourth nights. A self-administered questionnaire and actigraphy were used to analyze ease of use and sleep quality, respectively. No safety problems were reported. A few repairs were needed only for the type-3 PMs. The type-4 PM was more inconvenient to bring home (type 3: 15.1%; type 4: 68.3%). The type-3 PM was more inconvenient to use (type 3: 71.2%; type 4: 0.7%) and more uncomfortable to use (type 3: 81.3%; type 4: 9.4%). A Blant-Altman plot and scatter plot revealed high night-to-night reliability of these PMs. No first-night effect in the apnea-hypopnea index was observed with the type-3 PM (P = 0.373, paired t-test). However, the actigraphy data suggested that sleep latency was increased, especially during the first use of the type-3 PM, which was not observed with the type-4 PM. The type-3 and type-4 PMs were durable, safe, easy to use and reliable. Both the PMs can be used to monitor obstructive sleep apnea (OSA) in unattended home settings.

• 出版日期2011-4