WatchPAT 300 is an innovative Home Sleep Apnea Test (HSAT) that is diagnostic and utilizes a proprietary peripheral arterial tone signal (PAT). WatchPAT measures up to 7 channels (PAT signal, heart rate, oximetry, actigraphy, body position, snoring and chest motion) via three points of contact. Within one-minute post study, the raw data is downloaded and auto-scored differentiating obstructive and central events, providing an AHI, RDI and ODI based upon True Sleep Time™ and Sleep Staging. Both the AHI and RDI derived from the WatchPAT were clinically validated with an 89% correlation to PSG; the PAT signal is an approved measure in the 2017 AASM HSAT Clinical Practice Guidelines for Adults with OSA.

The WatchPAT uses its advanced actigraphy to differentiate between wake and sleep periods to calculate True Sleep Time and uses the PAT amplitude and pulse rate to differentiate between non-REM and REM thereby creating a Complete Sleep Architecture (Light, Deep, REM). WatchPAT calculates AHI and RDI using the patient’s True Sleep Time rather than the recorded time used in most commercially available HSAT’s. WatchPAT’s True Sleep Time reduces the risk of misdiagnosis and misclassification that has been reported to be 20% with HSAT’s using total recording time. Knowing the Complete Sleep Architecture improves the accuracy of the respiratory indices, test sensitivity and specificity and allows the clinician to make a diagnosis for the potential for an elevated REM AHI which has been shown to correlate with an odds ratio increased risk of hypertension and/or diabetes.
The PAT signal attenuation and accelerated pulse rate has been shown to reflect sympathetic activation which is a clinically validated surrogate for autonomic arousals and micro-arousals found in sleep disordered breathing. Combined with oximetry desaturations or re-saturations, the proprietary WatchPAT algorithm accurately classifies the SDB events into AHI, RDI and ODI, providing the physician with a comprehensive assessment of the patient.

The zzzPAT®, software has an advanced algorithm for the scoring of respiratory events and delineation of sleep stages. After a study is downloaded, an automated report is generated detailing complete sleep architecture, sleep efficiency, sleep latency, REM and non-REM related apnea events. If required zzzPAT’s flexibility allows the user to manually score an event or study.

The CloudPAT® platform is a HIPPA-compliant, cloud-based IT solution for secure patient data transfer and convenient sleep study interpretation and diagnosis. SleePATh expands the CloudPAT platform with a dashboard to assist physicians in monitoring patient compliance and the patient care pathway.

Itamar Medical is a leading medical device company that develops and markets products utilizing its proprietary PAT technology to diagnose and manage Sleep Disordered Breathing. The company has pioneered innovative solutions to help physicians provide comprehensive sleep apnea management in a variety of clinical environments to optimize patient care and reduce healthcare costs.