Abstract
The Medtronic SEEQ(™) Mobile Cardiac Telemetry System provides continuous monitoring of symptomatic and asymptomatic cardiac arrhythmias. Deployed across disparate geographies, the device and the patients wearing it are subject to a wide range of weather conditions, specifically differing temperatures. We hypothesized that extremes of temperature would result in degradation of SEEQ system performance due to patient discomfort, perspiration, and other factors. Towards that end, we investigated data from over 5000 devices worldwide, including those linked to patient complaints for discomfort. We found that the data does not show a degradation of wearable performance as defined by artifact or event rate with temperature. However, there was a correlation between patient complaints of discomfort and degraded performance as well as a weak correlation with reduced system longevity at temperatures above 80° F.
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