Optimizing post-myocardial infarction care: the critical role of timing theory

BACKGROUND: Heart failure (HF) after acute myocardial infarction (AMI) seriously affects the prognosis and quality of life of patients, and the timeliness of nursing intervention is crucial. As a theoretical framework for nursing intervention, timing theory emphasizes timeliness and accuracy, and can comprehensively improve the overall prognosis of patients. OBJECTIVE: To explore the impact of nursing measures based on timing theory on clinical outcomes of patients with heart failure after acute myocardial infarction. METHODS: Patients with heart failure after acute myocardial infarction admitted to the People’s Hospital of Henan Province from January 2023 to June 2024 were selected as the research objects. A total of 90 patients were included and randomly divided into the experimental group and the control group, with 45 patients in each group. The experimental group received systematic nursing intervention based on opportunity theory, and the control group received routine nursing care. Cardiac function indicators (LVEF, LVEDV, LVESV, NT-proBNP) of patients in the two groups were evaluated before and after the intervention, Immediately before treatment (T0), Patients ‘exercise endurance (6MWT), anxiety and depression (GAD-7, PHQ-9) and quality of life (MLHFQ) were evaluated 1 month (T1), 3 months (T3) and 6 months (T6) after treatment. Patients in both groups were followed up regularly for 6 months. RESULTS: After intervention, the cardiac function indicators (LVEF, LVEDV, LVESV, NT-proBNP) of the two groups were significantly improved, and the experimental group was better than the control group (p < 0.05). After the intervention, the exercise endurance 6MWT, anxiety and depression (GAD-7, PHQ-9) and quality of life (MLHFQ) scores of patients in both groups were significantly improved, and the scores in the experimental group at the same day (T0), 1 month (T1), 3 months (T3) and 6 months (T6) after treatment were significantly better than those in the control group (p < 0.05), and both showed a trend of continuous improvement. CONCLUSION: Timing theory has important application value in the continuous care of patients with heart failure after acute myocardial infarction. Scientific and precise timing of nursing intervention can significantly improve patients ‘cardiac function, exercise endurance, emotional state and quality of life.