Effectiveness of a Smartphone App–Based Intervention With Bluetooth-Connected Monitoring Devices and a Feedback System in Heart Failure (SMART-HF Trial): Randomized Controlled Trial

Minjae Yoon   ¹ , MD ;   Seonhwa Lee   ² , MD ;   Jah Yeon Choi   ³ , MD, PhD ;   Mi-Hyang Jung   ⁴ , MD, PhD ;   Jong-Chan Youn   ⁴ , MD, PhD ;   Chi Young Shim   ⁵ , MD, PhD ;   Jin-Oh Choi   ⁶ , MD, PhD ;   Eung Ju Kim   ³ , MD, PhD ;   Hyungseop Kim   ² , MD, PhD ;   Byung-Su Yoo   ⁷ , MD, PhD ;   Yeon Joo Son   ⁸ , BS ;   Dong-Ju Choi   ¹ , MD, PhD

¹ Division of Cardiology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seognam, Republic of Korea

² Division of Cardiology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea

³ Cardiovascular Center, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea

⁴ Division of Cardiology, Department of Internal Medicine, Seoul St. Mary's Hospital, Catholic Research Institute for Intractable Cardiovascular Disease, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

⁵ Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea

⁶ Cardiac and Vascular Center, Samsung Medical Center, Sungkyunkwan University, Seoul, Republic of Korea

⁷ Department of Internal Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Woonju, Republic of Korea

⁸ Healthcare Business Department, AI/DX Convergence Business Group, KT, Seoul, Republic of Korea