Heart failure is a chronic condition that can lead to frequent hospitalizations and reduced quality of life. This study aims to evaluate whether a nurse-led, face-to-face educational intervention can improve clinical stability, treatment compliance, and self-care behaviors among patients with heart failure after hospital discharge. Participants will be randomly assigned to either the intervention group, receiving a structured 30-minute educational session using the teach-back method, or the control group, receiving standard follow-up care. The primary outcome is clinical stability at three months, assessed using the Heart Failure Somatic Perception Scale. Secondary outcomes include self-care and medication compliance measured up to 12 months. The study will be conducted at the ASST di Lodi Heart Failure Clinic in Italy and is expected to last three years.