The LIVMOR Data Collection Study for the Development and Validation of L-1000AF System

2019-10-01 07:55:10 | BioPortfolio


The LIVMOR Data Collection Study is a multicenter, IDE Exempt Study to generate a library of device-specific signals collected noninvasively. The study was not designed to evaluate specific hypothesis or endpoint, rather it was intended for data collection purposes to generate a library of raw clinical data that were retrospectively used for the development and subsequently the validation of the L-1000AF System. The L-1000AF System is a wrist worn system intended to provide continuous remote monitoring of atrial fibrillation (AF) episodes. The system is intended for use under the care of a physician and is not intended for the diagnosis of AF.


LIVMOR is developing a series of wearable medical device systems intended to promote general wellness and help subjects and physicians manage various diseases that can benefit from increased visibility of physical activity, sleep, weight, blood pressure, stress/recovery levels and cardiac rhythms.

Data from human subjects is necessary to develop and validate LIVMOR devices. LIVMOR completed a multicenter, IDE Exempt Study to generate a library of device-specific signals collected non-invasively using components of the LIVMOR system and simultaneously acquired with ECG Holter data using a commercially available Holter monitor. Data from the analysis of the Holter monitor was adjudicated by physicians skilled in the analysis and interpretation of ECGs compared to the analysis from the LIVMOR AF Detection Algorithm to establish the sensitivity and specificity of the algorithm for detection of AF in comparison to ground truth.

The study was not designed to evaluate specific hypotheses or endpoint, rather it was intended for data collection purposes to generate a library of raw clinical data that were retrospectively used for the development and subsequently the validation of the L-1000AF System.

Study Design


Atrial Fibrillation


L-1000AF System


VA North Texas Health Care System
United States





Results (where available)

View Results


Published on BioPortfolio: 2019-10-01T07:55:10-0400

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Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).

Long-term changes in the electrophysiological parameters and/or anatomical structures of the HEART ATRIA that result from prolonged changes in atrial rate, often associated with ATRIAL FIBRILLATION or long periods of intense EXERCISE.

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