Objective To explore the application effect of nursing intervention based on timing theory on patients with severe heart failure.Methods Totally 110 patients with severe heart failure admitted to the Department of Critical Care Medicine of Henan Cancer Hospital from June 2021 to June 2023 were selected as the research subjects.According to the random number table method,these patients were divided into observation group and control group,with 55 patients in each group.Patients in both groups were given symptomatic treatment,including cardiotonic and diuretic treatment,vasodilation(if necessary),circulatory support and/or ventilatory support.Patients in the control group received routine nursing during treatment,and patients in the observation group received nursing intervention based on timing theory during treatment.All interventions were performed until patients were transferred out of the Department of Critical Care Medicine.The cardiac function indexes of patients in the two groups were measured by using ultrasonic cardiograms before intervention,72 hours after intervention,and when the patients were transferred out of the Department of Critical Care Medicine,respectively;the clinical symptoms of patients in the two groups were evaluated by the Memorial symptom assessment scale-heart failure(MSAS-HF),and the severity of the disease was evaluated by acute physiology and chronic health evaluation Ⅱ(APACHE Ⅱ).The adverse events during the intervention in the two groups were recorded.Results There was no statistically significant difference in left ventricular ejection fraction(LVEF)and left ventricular end-diastolic diameter(LVEDD)of patients between the two groups before intervention(P＞0.05).The LVEF of patients in both groups after 72 hours of intervention and when the patients were transferred out of the Department of Critical Care Medicine was significantly higher than that before intervention,and the LVEDD was significantly lower than that before intervention(P＜0.05).When the patients were transferred out of the Department of Critical Care Medicine,the LVEF of patients in both groups was significantly higher lower than that after 72 hours of intervention,and the LVEDD was significantly lower than that after 72 hours of intervention(P＜0.05).At 72 hours of intervention,the LVEF of patients in the observation group was significantly higher than that in the control group,and the LVEDD was significantly lower than that in the control group(P＜0.05).When the patients were transferred out of the Department of Critical Care Medicine,there were no statistically significant difference in the LVEF and LVEDD of patients between the two groups(P＞0.05).There was no statistically significant difference in the MSAS-HF score and APACHE Ⅱ score of patients between the two groups before intervention(P＞0.05).The MSAS-HF score and APACHE Ⅱ score of patients in both groups after 72 hours of intervention and when the patients were transferred out of the Department of Critical Care Medicine were significantly lower than those before intervention(P＜0.05).When the patients were transferred out of the Department of Critical Care Medicine,the MSAS-HF score and APACHE Ⅱ score of patients in both groups were significantly lower than those after 72 hours of intervention(P＜0.05).At 72 hours of intervention,the MSAS-HF score and APACHE Ⅱ score of patients in the observation group were significantly lower than those in the control group(P＜0.05).When the patients were transferred out of the Department of Critical Care Medicine,there was no statistically significant difference in the MSAS-HF score and APACHEⅡ score of patients between the two groups(P＞0.05).The incidence of adverse events in the observation group and control group was 5.45％(3/55)and 16.36％(9/55),respectively;the incidence of adverse events in the observation group was significantly lower than that in the control group(P＜0.05).Conclusion The application of timing theory-based nursing intervention in patients with severe heart failure can significantly improve patients'cardiac function,reduce clinical symptoms and severity of the disease,and decrease the incidence of adverse events.
severe heart failuretiming theorynursing interventioncardiac function
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