9
OA STUDY
An OA Study cannot be used to make a diagnosis of SDB.
The purpose of an OA Study is to identify OSA patients who will be favourable candidates for OAT
and, in those patients, determine the minimum therapeutic protrusive distance for a custom-fitted
oral appliance. In addition to the standard components, the OA Study employs a mandibular
positioner (MP) to incrementally adjust the position of the mandible during the study.
The study is conducted over the course of 2-3 nights during which the following data will
be collected:
Oxygen saturation (SpO2)
Heart rate
Nasal airflow
Snoring
•
•
•
•
Respiratory effort
Body position
Mandibular position
•
•
•
This multi-night study consists of two different types of studies, a Dynamic Study and a Static
Study. The type of study, and the specific parameters for each successive night will depend on the
data collected and analyzed from the previous study night. The progress from one night to the
next will be automated and communicated to the patient and the HCP by the device.
Dynamic Study
During this type of study night, the system will respond to respiratory events by protruding
the mandible in 0.2 to 0.3mm steps, will moving throughout the patient’s mandibular range of
motion.
1
Principle of Operation
The MATRx plus System can be set up to perform two different types of sleep studies, a
Baseline Study
or
an Oral Appliance (OA) Study.
BASELINE STUDY
The purpose of the Baseline Study is to facilitate the diagnosis of sleep disordered breathing (SDB).
During this study, the following data will be collected:
Oxygen saturation (SpO2)
Heart rate
Nasal airflow
•
•
•
Respiratory effort
Body position
Mandibular position
•
•
•
