Hosts Mitsuaki Sawano, MD, and Shun Kohsaka, MD, FACC, discuss the end of Skype and before welcoming Dr. Nobuyuki Kagiyama, MD (Juntendo University), to explore findings from the SONIC-HF Registry on the prognostic value of diaphragm ultrasound in heart failure patients. The episode covers ultrasound methodology, research challenges, and clinical implications for heart failure management.