1.Preliminary study on ventricular-arterial coupling of patients with hypertension by ultrasonography
Xianghong LUO ; Ya YANG ; Zhian LI
Chinese Journal of Ultrasonography 2011;20(11):921-924
Objective To evaluate the cardiovascular stiffness and its coupling of patients with hypertension by ultrasound.Methods Fifty patients with essential hypertension and 30 age- and gendermatched subjects without hypertension,diabetes and other cardiovascular diseases as control group were enrolled in this study.The parameters of structure and function of left ventricle,blood flow were measured by echocardiography.The blood pressure and carotid-femoral pulse wave velocity (CFPWV) were also measured.The derived corresponding parameter:end-systolic pressure(ESP),effective arterial elastance (Ea),end-diastolic (Ed),end-systolic ventricular elastance (Ees) and Ea/ Ees were calculated respectively.Results Ees was correlated positively with ejection fraction (r =0.378,P =0.005),while Ea was correlated positively with CFPWV( r =0.289,P <0.001).Ed was correlated negatively with e/a ( r =- 0.333,P =0.027).Posterior wall of left ventricle was correlated positively with Ed and Ea( r =0.388,P =0.016; r =0.336,P =0.026).Ea and Ed in patients with hypertension were significantly higher than those in control group( P <0.05),but there was no significant difference of Ees and Ea/ Ees between two groups( P > 0.05).Conclusions Arterial stiffness is associated with ventricular stiffness,and their matching relation can be applied to evaluate ventricular-arterial coupling.
2.Influence of different intervention methods on the risk factors of cardiovascular disease for women with severe pre-eclampsia history
Qiyun LUO ; Xianghong CHEN ; Shaoxuan ZHANG
Chinese Journal of Practical Nursing 2012;28(25):56-58
Objective To explore different intervention methods on the risk factors of cardiovascular disease for women with severe pre-eclampsia history.Methods 78 patients with a history of severe preeclampsia in the hospital from November 2006 to November 2008 were chosen as the research subject.They were divided into the observation group and the control group according to the adopted different methods of intervention with 39 patients in each group.The control group was taken with conventional interventions for obesity intervention,and the observation group was treated with standard behavior therapy (SBT).The improving situations of the related risk factors for cardiovascular disease after three months for the two groups were compared.The effect of different intervention methods on the risk factors of cardiovascular disease was evaluated for women with severe pre-eclampsia history.Results After the intervention,the cardiovascular risk factors (systolic blood pressure,body mass,waist circumference,fasting glucose,total cholesterol/high density lipoprotein) of the two groups improved significantly than before the intervention.But the improvement effect of the observation group was better than the control group,the differences between the two groups were significant.Conclusions The intervention effect on risk factors of cardiovascular disease by standard behavior therapy for women with severe pre-eclampsia history is better than conventional way,which is worthy of clinical application.
3.Preliminary study on new parameter of myocardial elasticity
Xianghong LUO ; Zhaojun LI ; Ya YANG
Chinese Journal of Ultrasonography 2013;(2):154-157
Objective To discuss the value of the new parameter of myocardial elasticity derived from circumferential strain.Methods Right ventrieular apical pacing was established on the beagle dogs.Before and after pacing,the peak of early diastolic flow velocity (E peak),peak of atrial flow velocity (A peak),and the ratio of A/E were measured.The peak pressure-rise rate (+ dp/dtmax),peak pressure-fall rate (-dp/dt max),left ventricular systolic pressure(LVSP),LV diastolic pressure(LVDP)were measured by cardiac catheterization.The circumferential strain at the levels of base (CSRA),papillary (CSPM) and cardiac apex (CSAP) were measured,and the parameter of myocardial clasticity at the levels of base (EBA),papillary (EPM) and cardiac apex (EAP) were measured and calculated,respectively.Results ①After pacing,the + dp/dt and LVDP were increased,but the-dp/dtmax was decreased (P <0.05).② After pacing,the CSPM and CSAP were all decreased,but EBA,EPM,EA were all increased(P <0.05).③ The areas under the receiver operating characteristic curves (ROC) of CSAP,CSPM,EAP,EPM and EBA were all 1,and the area under the curve of CSBA was 0.687.EAB,EPM and EAP were significant negative correlation with CSPM and CSAP,but are positive correlated with A/E and LVDP (P < 0.05).Conclusions The parameter of myocardial elasticity derived from circumferential strain includes useful information about myocardial deformation and function.The new parameter can be applied to assess the diastolic function of left ventricle.
4.Investigation and management of the psychological state of the assistant nurses
Qiyun LUO ; Xianghong CHEN ; Jianyi GUAN
Chinese Journal of Practical Nursing 2012;28(29):79-81
ObjectiveTo investigate the personnel structure,academic composition,psychological status,nursing behavior and management of the assistant nurses. MethodsThe age,educational structure,mental state and management of 110 assistant nurses were surveyed in our hospital from August 2008 to July 2011,and the results were analyzed. ResultsAmong 110 assistant nurses,24~26 year- old accounted for 60%,tertiary education accounted for 20.9%,working age mostly between 2~3 years.Depression,fear,worry,anxiety,regret,etc.were the most prominent state of mind of nurses. ConclusionsThe old and new with mentoring,early implementation of psychological interventions,maintenance of their self- esteem and strengthening the humanistic quality training can effectively stabilize psychological state of assistant nurses.The implementation of people- centered care management model not only can improve the overall professional quality of the nurses,but also can reach the ultimate goal of nurses,patients,hospitals tripartite benefit.
5.Research of the course system construction of pharmacy administration for the undergraduate
Yue YANG ; Xianghong LUO ; Lihua SUN ; Ye LI ; Gang LUO
Chinese Journal of Medical Education Research 2006;0(07):-
This thesis introduced the situation of the pharmacy administration undergraduate course construction of Shenyang Pharmaceutical University. From the background of setting up of the pharmacy administration program,and in combination with the characteristics of the program,this thesis suggested that five principles should be followed to the course system construction,and expounded the concrete conditions of the curriculum setup and the next step assumption.
6.Effect of Acupuncture at the Muscle Region of Meridians plus Tuina on Facial Nerve Function in Peripheral Facial Paralysis
Zhonghui ZHAO ; Xianghong HUANG ; Jianping CHENG ; Gaojun LUO
Shanghai Journal of Acupuncture and Moxibustion 2016;35(10):1197-1199
Objective To observe the effect of acupuncture at the muscle region of meridians plus tuina on facial nerve function in peripheral facial paralysis. Method Sixty patients with peripheral facial paralysis (recovery stage) were randomized into a treatment group (intervened by acupuncture at the muscle region of meridians plus tuina) and a control group (intervened by conventional acupuncture), 30 cases in each group. Result The facial nerve electromyography (EMG) showed that the action potential latency and amplitude were changed significantly after the treatment in both groups (P<0.05), indicating that the two methods were both effective in recovering facial nerve function, while acupuncture at the muscle region of meridians plus tuina produced a more significant treatment effect compared to conventional acupuncture. In the treatment group, same treatment with different intervention times produced significantly different effects on the Toronto facial grading system (TFGS) (P<0.05), indicating that the earlier the intervention, the more significant the therapeutic efficacy. Conclusion Acupuncture at the muscle region of meridians plus tuina can produce a more significant effect in recovering facial nerve function in peripheral facial paralysis compared to conventional acupuncture.
7.Preparation of gfp-bcl-X_L-contained recombinant adenovirus vector by the homologous recombination in bacteria
Yan LUO ; Shibo TANG ; Xianghong LI ; Shuangxi LIU
Chinese Journal of Pathophysiology 2000;0(12):-
AIM: To prepare gfp-bcl-X L-contained recombinant adenovirus(rAd-gfp-bcl-X L).METHODS: Bcl-X L gene was amplified from pEGFP-C 3-bcl-X L, subcloned into shuttle plasmid and formed transfer plasmid of pAdTrack-CMV-bcl-X L. Then pAdTrack-CMV-bcl-X L was linealinzed with PmeI and co-transformed into BJ5183 bacteria with adenovirus genomic plasmid of pAdEasy-1. The identified recombinant adenovirus plasmid was digested with PacI and transfected into 293 cells to package recombinant adenovirus particles. The target gene was detected by PCR.RESULTS: There were about 35% positive recombinant bacterial clones after the co-transformation of pAdTrack-CMV-bcl-X L and pAdEasy-1 into BJ5183. Recombinant adenovirus particle were produced and further amplified after the transfection of pAdEasy-1-gfp-bcl-X L into 293 cells. PCR test indicated that the recombinant Ad contained bcl-X L gene. The titer of the purified rAd-gfp-bcl-X L was 6 5?10 12 PFU/L. CONCLUSIONS: The homologous recombination in bacteria is a convenient and high efficient method to prepare rAd-gfp-bcl-X L. This affords a good gene transfer vector for the gene therapy in human's diseases.
8.Significance of new parameters in evaluation the function of carotid artery
Xianghong LUO ; Tiesheng CAO ; Jie LIU ; Yunyou DUAN ; Zhaojun LI
Chinese Journal of Ultrasonography 2009;18(9):759-761
Objective To evaluate the parameters of inner diameter different rate (D%), mean wave intensity(MWl) and diameter-adjusted mean wave intension(DAMWI) in assessing the function of common carotid artery(CCA) by quality intima-media thickness(QIMT) technique. Methods Twenty-four healthy subjects were performed 2D and CDFI examination under the normal quiescent and cold pressor test(CPT) condition respectively. The diastolic and systolic diameters of left-CCA were measured by QIMT respectively. Corresponding the inner diameter different range,rate,MWI and DAMWI were calculated respectively. The curves of their ROC were drawn. Results The different range and rate of diameters were decreased when subjects suffered CPT (P< 0.05) ,but the MWI and DAMWI were increased (P<0. 05). The areas under the ROC curves were 0. 827,0. 821 and 0.728 corresponding DAMWI, MWl and different rate of diameter. There was no significant difference among them(P>0. 05). Conclusions Conclusions The changed rate of diameter can be measured exactly by QIMT. The function of CCA can Be evaluated by MW1 and DAMWI which were calculated by conventional parameters.
9.Study of effects of the thoracic pressure on the velocity of tricuspid regurgitation and estimation of pulmonary artery systolic pressure
Huaqiang XIONG ; Tiesheng CAO ; Xianghong LUO ; Lijun YUAN ; Yunyou DUAN
Chinese Journal of Ultrasonography 2009;18(4):284-287
Objective To observe the effects and the mechanism of the thoracic pressure variation on the velocity of tricuspid regurgitation in quiet respiration, to accurately estimate the pulmonary artery systolic pressure,and to verify the new proposed mechanism of respiration effects on hemodynamics using echocardiography. Methods Continuous-wave Doppler spectra of tricuspid regurgitation were recorded with Sequoia 512 in 50 patients who had stable tricuspid regurgitation. Electrocardiogram and respiratory tracing were recorded simultaneously. The velocities and the pressure gradients were recorded during different respiration phases for analyzing. Results Respiration reliably affected on tricuspid regurgitant velocity. There were three patterns of manifestation:①The velocity increased in the inspiratory phase. ②The velocity decreased in the inspiratory phase. ③The velocity changed randomly. Conclusions Thoracic pressure variations had definite effects on the velocity of tricuspid regurgitation and tricuspid gradient. This research indicated that to obtain accurate and reliable Doppler echocardiographic measurement of the pulmonary artery systolic pressure, the measurement should be at the time between inspiration and expiration.
10.Research in deformation and motion of interventricular septum by velocity vector imaging combining with radius of curvature and length of arc
Xianghong LUO ; Tiesheng CAO ; Zuojun WANG ; Yunyou DUAN ; Zhaojun LI
Chinese Journal of Ultrasonography 2009;18(3):219-221
Objective Radius of curvature (RC) and velocity vector imaging (VVI) were joined to evaluate the deformation and motion of interventricular septum(IVS). Methods VVI was performed in fifteen healthy volunteers and obtained dynamic images at chordae tendineae of mitral valve in short axis view. The images were stored and analyzed to obtain circumferential peak stain of IVS. In the same short axis view, the static images were captured at end-systole and end-diastole respectively before they were analyzed by self-made software. The length of arc and RC were measured automatically by the software, so the shortening rates of them could were calculated. Results The length of arc and RC were longer at end-diastole than those at end-systole(P<0.0001). The shortening rate of length of arc was compared with circumferential peak stain of IVS (P=0.123) and they were correlation (r = 0. 840, P = 0. 0001 ). Blant-Altman analysis indicated that the concordance was well. Conclusions The length of arc and RC can evaluate the deformation and motion of IVS.