Baselining therapy energy for wearable cardiac treatment devices

A wearable cardiac treatment system configured to treat arrhythmias occurring in an ambulatory patient, comprising:

• a garment configured to be worn about a torso of the ambulatory patient;
• a plurality of ECG electrodes configured to be disposed on the garment and further configured to sense ECG signals indicative of cardiac activity in the patient;
• a plurality of therapy electrodes configured to be disposed on the garment;
• a memory configured to store baseline therapy energy information;
• and
• a cardiac controller comprising one or more processors in communication with the memory, the plurality of ECG electrodes and the plurality of therapy electrodes, the one or more processors configured to
• determine one or more timing parameters and/or one or more morphology parameters of the ECG signals of the patient;
• apply, via the plurality of therapy electrodes, at least one or a series of cardiac rhythm disruptive shocks at predetermined one or more times based on the one or more timing parameters and/or one or more morphology parameters of the ECG signals of the patient, wherein the at least one or the series of the cardiac rhythm disruptive shocks are delivered at same and/or decreasing energy levels until a cardiac rhythm change is induced in the patient,
• detect the cardiac rhythm change in the patient,
• record, in the memory, an energy level of a cardiac rhythm disruptive shock that induced the cardiac rhythm change as the baseline therapy energy information, and
• adjust a defibrillation energy level for one or more future defibrillation shocks to be delivered by the wearable cardiac treatment system based on the energy level of the cardiac rhythm disruptive shock that induced the cardiac rhythm change.