Patent ID: 8870797

Claim:
A method to treat a patient in shock comprising: determining the patient is in a pulseless electrical activity (PEA) condition; during the PEA condition, sensing actual residual myocardial motion or residual pulsatile blood flow in the patient using one or more sensors for any of echocardiography, Doppler ultrasonography, plethysmography and phonocardiography, determining whether actual myocardial motion or residual pulsatile blood flow is occurring in the patient during the PEA condition, and in response to the determination that the actual myocardial motion or residual pulsatile blood flow is occurring, repeatedly applying a phasic therapy to the patient synchronized to the sensed actual myocardial motion or pulsatile blood flow, wherein the phasic therapy includes applying a compressive force to the chest of the patient during at least a portion of an ejection phase of the heart and ceasing the application of the compressive force during at least a portion of a relaxation phase of the heart.