Objective To analyze the effect of Evidence-based Care on the complication rate and comfort in patients with coronary heart disease after intervention therapy, and to provide reference for clinical care. Methods One hundred and twenty-two patients with interventional treatment of coronary heart disease in hospital from May 2013 to April 2015 were selected, patients were divided into control group (61 cases) and intervention group (61 cases) according to the care methods. Control group patients were given careful routine care, Intervention group patients were given Evidence-based Care, the complication rate and comfort of the two groups were compared. Results The incidence of postoperative complications in the intervention group (11.5%) was significantly lower than the control group (76.6%),P<0.05. The intervention group after 6h (61.5 ± 5.3), 12h (70.2 ± 4.5), 24h (87.5 ± 3.5) comfort were significantly higher than control group 6h (52.6 ± 6.8), 12h (61.2 ± 5.3), 24h (73.5 ± 4.2), P<0.05. The incidence of bad mood of intervention group were significantly lower than the control group, P<0.05. The intervention group patient care satisfaction (96.7%) was significantly higher than control group (86.9 %), P<0.05. Conclusion Evidence-based nursing for the patients with coronary heart disease undergoing PCI can greatly decrease vascular complications and improve comfort value.

Objective To determine the usefulness of tricuspid annular displacement(TAD),based on twodimensional speckle tracking imaging, for assessment of right ventricular(RV)systolic function.Methods Eighteen patientswith dilated cardiomyopathy and 20 age-matched healthy volunteers were in volved. Twodimensional and real-time three-dimensional(RT3D)imaging were obtained in all patients at apical four-chamber view.The parameters of TAD were derived from off-line QLAB software.RT3D-RV ejection fraction(RVEF)was calculated by using 4D RV function software.Results TAD data were acquired in all 38 cases, while RT3D-RVEF was done in 30 out of 38.The parameters of TAD correlated well with RVEF(P<0.01).The parameters of TAD in dilated cardiomyopathy group were significantly lower than the corresponding values in healthy subjects (P<0.01).The intra-and interobserver variabilities for measurement of TAD were(0.49±2.69)mm and(0.21± 0.60)mm, respectively.Conclusions TAD,based on two-dimensional speckle tracking imaging,proved to be a rapid and reproducible method in determining RV global systolic function.

Objective To investigate the preliminary value of mitral annular displacement (MAD) with two-dimensional speckle tracking in evaluating left ventricular systolic function. Methods Forty-nine patients with dilated cardiomyopathy, aged 51±14 years (DCM group), and 43 age-matched (46±14 years) normal subjects (control group) were enrolled in this study. Two-dimensional and real-time three-dimensional (RT3D) imaging were obtained all at the apical four-chamber view. The parameters of MAD and RT3D-LVEF were obtained using off-line QLAB software. Results Compared with control group, MAD reduced significantly in DCM group (P＜0.01). The parameters of MAD correlated positively with LVEF (P＜0.01). The intra- and inter-observer variabilities for measurement of MAD were low. When one point was placed at the chest wall, the ratio of long axis shortening correlated best with LVEF among all the data of MAD. Conclusion Based on two-dimensional speckle tracking imaging, MAD is a rapid and reproducible method of determining LV global systolic function, may even replace LVEF in the future.

【Objective】 To explore the application of capillary ultracentrifugation technology in accurate identification of Rh phenotype and clinical blood transfusion. 【Methods】 132 samples, presenting mixed field agglutination during Rh phenotyping in our laboratory from May 2019 to February 2020, were separated using capillary ultracentrifugation technology, and the proximal and distal red blood cells were taken for Rh phenotype test, and then blood donors with the same Rh phenotype as the proximal cells were selected for cross matching. 【Results】 132 samples were subjected to capillary ultracentrifugation, and new red blood cells were successfully isolated from the proximal side in 128 (96.97%)cases, and the Rh phenotype was accurately identified, i.e. CcDEe in 47 cases (36.72%), CcDee in 12(9.38%). ), ccDEEin 11 (8.59%), CCDee in 52(40.63%), ccDEe in 5 (3.91%), and ccDee in 1(0.78%). 4 cases of mixed field reaction remained after centrifugation, and all of them had a history of blood transfusion within 2 days. For the 128 patients whose Rh phenotype was accurately identified, blood donors with the same type of Rh phenotype were selected, and 4 patients whose Rh phenotype could not be determined, donors with CCDee phenotype were selected based on the frequency of phenotype distribution and the principle of reducing antigen exposure. The cross-matched blood of all patients were consistent. 【Conclusion】 Capillary ultracentrifugation technology can effectively separate the new red blood cells, improve the accurate identification of Rh phenotype, and provide safety guarantee for clinical targeted blood transfusion.