Comparison of partners-heart failure algorithm vs care alert in remote heart failure management

Figure 1 Distribution of total transmissions. Legend total transmissions are depicted in a pie-chart; positive partners-HF transmissions are shown in black; negative partners-HF transmissions are shown in white. Care alert transmissions are represented in separate slices. HF: Heart failure.

Figure 2 Positive partners-heart failure transmissions. HRV: Heart rate variability; PA: Patient activity; %CRT: Percentage of cardiac resynchronization therapy pacing; AF: Atrial fibrillation; V shock: Ventricular shock; NHR: Night heart rate.

Figure 3 Clinical actions following positive partners-heart failure, negative partners-heart failure, positive care alert and negative care alert transmissions. No actions are depicted in white; clinical actions are depicted in light gray; active clinical actions are depicted in dark gray (pharmacological treatment modifications during telephonic contacts) and black (clinical examination and pharmacological treatment modifications). HF: Heart failure.

Figure 4 True and false positive and negative transmissions according to active clinical actions. A: True +: Positive partners-HF transmissions followed by active clinical actions (class 2 or 3); False +: Positive partners-HF transmissions followed by no actions or non-active clinical actions (class 0 or 1); True -: Negative partner-HF transmissions followed by no actions or non-active clinical actions (class 0 or 1); False -: Negative partners-HF transmissions followed by active clinical actions (class 2 or 3); B: True +: Positive care alert transmissions followed by active clinical actions (class 2 or 3); False +: Negative care alert transmissions followed by no actions or non-active clinical actions (class 0 or 1); True -: Positive care alert transmissions followed by no actions or non-active clinical actions (class 0 or 1); False -: Negative care alert transmissions followed by active clinical actions (class 2 or 3). All values are expressed in terms of percentage of total transmissions. HF: Heart failure.