Figure 2.

Representative example of algorithmic detection of a statistical event in a dog with degenerative mitral valve disease, monitored at home for heart rate (A) and respiratory rate (B) using the biotracker. A steady increase in the 40-day moving average of daytime heart rate (red line) was detected by the algorithm (A), with its 40-day difference exceeding the alert threshold approximately 60 days before a similar change was observed in respiratory rate due to congestive heart failure (i.e., pulmonary edema; B). In both panels, turquoise dots represent daily means, the red line is the 40-day moving average, and the blue shaded band denotes the period where the statistical events occurred.