Sleep Time vs. Study Time | Itamar Medical

                
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Confidence Through Innovation

Monitoring Sleep Time vs. Study Time: A WatchPAT Advantage

The amount of time actually spent sleeping is essential for determining the Respiratory Disturbance Index, or RDI. Most ambulatory home testing devices lack “real sleep” monitoring and are only able to calculate “total study time”—how long the monitor was actually used. The RDI is then calculated by dividing the total number of respiratory events by a substantially longer time period, thus providing a lower RDI than the actual one. WatchPAT detects the sleep/wake state and REM sleep stage along with “total sleep time,” providing the most accurate estimation of sleep architecture.

WatchPAT Sets Itself Apart from the Competition

WatchPAT is by far the easiest ambulatory sleep apnea diagnostic device to use. In just a matter of minutes, the patient applies the snore and body position monitors, oximeter, WatchPAT wrist appliance, and PAT probe. Once that’s done, all that’s needed is a night’s sleep, and WatchPAT takes care of the rest. The importance of WatchPAT in the detection of sleep apnea lies in its unique features, including the detection of wake, sleep, and REM states, and its proven diagnostic accuracy in apnea assessment.