https://www.selleckchem.com/products/lxh254.html 05). Compared with the control group, the total index and sub-indexes of the DHI (DHI-P (physical), DHI-F (function), and DHI-E (emotion)) in the experimental group were significantly improved, and the differences were statistically significant (P<0.05). The BBS, VSI, balance test, and UCIA vertigo scores in the two groups after the treatment were better than they were before the treatment (P<0.05). Compared with drug therapy alone, vestibular rehabilitation training combined with common drug therapy can significantly improve the patients' quality of life, better eliminate their vertigo symptoms, and improve their satisfaction. Compared with drug therapy alone, vestibular rehabilitation training combined with common drug therapy can significantly improve the patients' quality of life, better eliminate their vertigo symptoms, and improve their satisfaction. To explore the effect of controlling the heart rate on the heart failure index and on heart function in patients with heart failure and atrial fibrillation. 82 patients with heart failure and atrial fibrillation were divided into a control group (n=41) and a study group (n=41). The patients in the control group underwent conventional treatment. In addition to the conventional treatment, the patients in the study group were administered metoprolol to actively control their heart rates and to decrease their resting heart rates down to 55-60 beats/min as the target heart rate. After three months of treatment, the heart function, the levels of N terminal pro B type natriuretic peptide (NT-proBNP), and the inflammatory factors were compared between the two groups. At the same time, the readmission rates and prognoses were calculated. After the treatment, the left ventricular ejection fraction (LVEF) and the cardiac output (CO) levels in the two groups were increased, and the levels in the study group were higher than the levels in the control group; there were opposite t