The present invention relates a method of treating heart failure in patients with coincident atrial fibrillation, the method comprising: screening of patients for selection of potential responders to neurostimulation based on heart rate variability； implanting a neurostimulator device around a vagus nerve in the selected patients followed by stimulating the vagus nerve at an electrical stimulus intensity below threshold for heart rate reduction； and remotely monitoring and controlling the neurostimulator based on cardiac health parameters of the patient subjected to vagal nerve stimulation.
