Harbin Medical University

Due to the complex nature of HF patients' conditions, long-term treatment and management are required, especially post hospital management, which is of great significance for improving patients' cardiac function and quality of life. With the increasing popularity of smartphones and the continuous development of medical technology, digital health intervention (DHI) has emerged as a new medical model in the treatment of diseases.
This study will establish a comprehensive post hospital management model of HF based on DHI, including cognitive behavioral therapy, digital self-monitoring and remote dielectric sensing (ReDS™) technology, etc., comprehensively strengthen the post hospital intervention and management of HF. Objective to explore the effect of comprehensive post hospital management based on DHI on cardiac function of patients with HF 6 months after discharge.

The primary goal of this clinical trial is to assess whether vitamin K2 or zinc supplementation can effectively improve skeletal muscle and neurological function in patients with ischemic stroke. The main questions it aims to answer are: 1. Does supplementation with vitamin K2 or zinc improve the subjects' muscle strength and muscle mass? 2. Can supplementation with vitamin K2 or zinc improve the subjects' neurological function after a stroke? Researchers will compare vitamin K2 or zinc supplements with a placebo to observe whether vitamin K2 or zinc supplementation can improve skeletal muscle and neurological function in patients with ischemic stroke. Participants will: 1. Take vitamin K2 (MK-7), zinc supplements, or a placebo daily for 2 years. 2. Attend face-to-face visits and provide biological samples and relevant data at 0, 3, 6, 9, 12, and 24 months (intervention phase). After the intervention, follow-up will continue for 1 year to observe the long-term effects.