Data Presented at Heart Rhythm Society’s Annual Meeting Shows
Feasibility of Using CardioNet’s Mobile Cardiac Outpatient Telemetry™ to
Identify Severe Sleep Disorders
CardioNet, Inc. (NASDAQ:BEAT) today announced the launch of SomNet ™, a
new clinical indicator available in the Company’s existing Mobile
Cardiac Outpatient Telemetry™ (MCOT™) system. Because many patients with
cardiac disorders also suffer from common sleep disorders like sleep
apnea, CardioNet believes that SomNet has the potential to identify
patients with a high likelihood of such sleep disorders by measuring
cyclic variation of heart rate (CVHR), a rhythm that is caused by
repeated arousals from sleep due to such disorders. SomNet’s utility is
based on data presented at the Heart Rhythm Society’s (HRS) 30th
Annual Scientific Sessions in Boston.
“There is a high prevalence of sleep disorders like sleep apnea in the
cardiovascular and arrhythmia population,” said Randy Thurman, CEO of
CardioNet. “The data collected by SomNet is extremely valuable
information that can be captured from our existing MCOT ECG signal. If
clinically appropriate, physicians may choose to refer patients with
CVHR patterns to sleep centers for further diagnostic testing, to
determine if they have sleep apnea or another serious sleep disorder.”
In an 80-patient study presented today at HRS, Phyllis K. Stein, Ph.D.,
Research Associate Professor of Medicine at Washington University School
of Medicine, found that automated identification of clinically relevant
CVHR is feasible using CardioNet’s MCOT system. The study compared MCOT
automatic analysis of CVHR patterns versus a human expert’s direct
analysis of plots of HR patterns for measuring clear (large amplitude)
CVHR. Findings showed similar specificity and positive predictive value
measures between MCOT and human expert analysis, with slightly lower
sensitivity measures for the automated analysis.
“Although slightly less sensitive than more labor intensive human
overreading, the MCOT system and SomNet may provide a platform for
efficiently identifying patients with severe sleep disorders, like sleep
apnea, in a large population,” said Dr. Stein.
About CardioNet, Inc.
CardioNet, Inc. is the leading provider of ambulatory, continuous,
real-time outpatient management solutions for monitoring relevant and
timely clinical information regarding an individual's health.
