Heart insufficiency therapy needs time. In addition to the detection and treatment of life-threatening cardiac arrhythmias, the LifeVest® supports telemonitoring and hence therapy optimization – for example, heart rate monitoring can help determine the optimal beta-blocker dosage. Via the ZOLL Patient Management (ZPM) Network, the attending physician can access current health data via telemonitoring during the WCD wearing time and thus record heart rate, physical activity and body position. Especially the heart rate is associated with a higher mortality risk.