Objective To investigate the effect of transesophageal echocardiography (TEE) versus transthoracic echocardiography (TTE) in evaluating right ventricular contractibility, as well as the correlation and consistency between conventional measurement method and speckle tracking echocardiography. Methods A total of 49 patients were enrolled in this prospective study, and all patients underwent TTE and TEE simultaneously (with an interval of no more than 24 hours) to measure tricuspid annular plane systolic excursion, tricuspid annular plane systolic velocity, and myocardial strain of the right ventricular free wall. Each parameter was determined by both conventional M-type Doppler tissue imaging and speckle tracking echocardiography, and the measured values were compared between TTE and TEE. Results For conventional M-type Doppler tissue imaging, compared with TTE, TEE underestimated tricuspid annular plane systolic excursion (12.1±2.8 mm vs 17.2±3.8 mm, P<0.05) and tricuspid annular plane systolic velocity (6.5±2.2 cm/s vs 9.1±2.1 cm/s, P<0.05). Tricuspid annular plane systolic excursion measured by speckle tracking showed no significant deviation and a high degree of variability, with a mean deviation of -0.3 mm and a 95% consistency range of -8.7 to 7.9, and strain and strain rate measured by TEE were significantly higher than those measured by TTE (strain: -18.8±3.6 vs -12.8±1.9, P<0.05; strain rate: -1.1±0.2/s vs -0.6±0.1/s, P<0.05). Conclusion There is a high degree of correlation between the parameters of right ventricular contractibility (tricuspid annular plane systolic excursion, tricuspid annular plane systolic velocity, and myocardial strain of the right ventricular free wall) measured by TEE and TTE using the conventional method. Tricuspid annular plane systolic excursion measured by speckle tracking has no deviation, but the difference in the specific data measured should be taken seriously in practical application.

Objective To investigate the effect of integrated nursing on elderly patients with coronary heart disease and heart failure. Methods A total of 90 elderly patients with coronary heart disease and heart failure who were admitted to our hospital were enrolled as subjects, and the study started in January 2020 and ended in January 2021. The patients were divided into conventional group and experimental group by random drawing, with 45 patients in each group. The patients in the conventional group were given basic nursing, and those in the experimental group were given integrated nursing. The two groups were compared in terms of treatment compliance and quality-of-life score before and after intervention. Results After intervention, compared with the conventional group, the experimental group had significantly higher scores of treatment compliance and quality of life (P<0.05). Conclusion For elderly patients with coronary heart disease and heart failure, integrated nursing can improve their treatment compliance and quality of life and thus exerts a certain interventional effect.