1.Evaluation of right ventricular function in patients with pulmonary arterial hypertension by real-time three-dimensional echocardiography
Yidan LI ; Xiuzhang LYU ; Yafeng WU ; Xiaojuan GUO ; Yidan WANG
Chinese Journal of Ultrasonography 2015;24(3):191-195
Objective To evaluate right ventricular systolic function in patients with pulmonary hypertension (PH) by real-time three-dimensional echocardiography (RT-3DE),and compared with cardiac magnetic resonance.Methods A total of 23 patients with PH who underwent MRI and echocardiography in the study.Right ventricular index of myocardial performance (RIMP),fractional area change (RVFAC),tricuspid annular plane systolic excursion (TAPSE) and tissue Doppler-derived tricuspid lateral annular systolic velocity (S') were measured by echocardiography.RV end-diastolic volume (RVEDV) and endsystolic volume (RVESV) were measured by RT-3DE and cardiac magnetic resonance and RV ejection fraction (RVEF) was calculated.Results A positive correlation was found between RVFAC and RVEF (r =0.595,P =0.003),there was a negative correlation between RIMP and RVEF (r =-0.745,P =0.000),has no correlation between TAPSE and RVEF (r =-0.029,P =0.896),a positive correlation was found between S' and RVEF (r =0.489,P =0.018).There were close correlation between RVEDV,RVESV and RVEF measured by RT-3DE and MRI (P <0.001,respectively);Bland-Altman analyses showed good agreement between them.Conclusions RT-3DE can noninvasive,accurate assessment right ventricular systolic function in patients with PH,and provide prognosis and treatment choice for clinical demands.
2.Value of longitudinal strain of right ventricular by 2-dimensional speckle-tracking echocardiography in detecting right ventricular function and hemodynamics in pulmonary hypertension
Yidan LI ; Xiuzhang LYU ; Xiangli MENG ; Yidan WANG ; Weiwei ZHU
Chinese Journal of Ultrasonography 2016;25(7):553-557
Objective To measure right ventricular longitudinal strain (RVLS) of pulmonary hypertension(PH) patients by two-dimensional speckle tracking echocardiography,and explore its clinical application value on evaluating right ventricular function and hemodynamics in PH.Methods A total of 66 patients diagnosed as PH by right-heart catheterization were divided into Group Ⅰ (WHO FC Ⅰ / Ⅱ) and Group Ⅱ(WHO FC Ⅲ/Ⅳ) according to WHO pulmonary hypertension function classification.The right ventricular function parameters included:global right ventricular longitudinal strain (RVLSglobal),free-wall right ventricular longitudinal strain (RVLSFw),tricuspid annular plane systolic excursion (TAPSE),right ventricular fractional area change (FAC),tissue Doppler-derived tricuspid lateral annular systolic velocity (s') and right ventricular index of myocardial performance (RIMP).Systolic pulmonary artery pressure (sPAP) was calculated through tricuspid regurgitation pressure gradient.Hemodynamic parameters include:mean pulmonary arterial pressure (mPAP),pulmonary vascular resistance (PVR),pulmonary capillary wedge pressure (PCWP) and cardiac index (CI).Results ①Compared with Group Ⅰ,Group Ⅱ presented with higher sPAP (P <0.05).There also were significant differences between two groups in RVLSglobal,RVLSFw (P <0.01) and conventional right ventricular function parameters:TAPSE,RIMP and s' (P <0.05).②mPAP,PVR and CI had significant difference between two groups (P <0.01),while PCWP had no significant difference.mPAP and PVR increased more remarkable and CI decreased more significant in Group Ⅱ.③RVLSglobal had positive correlation with mPAP (r =0.646,P =0.000) and PVR (r =0.628,P =0.000) measured by right-heart catheterization;RVLSFW also had positive correlation with mPAP (r =0.652,P =0.000) and PVR (r =0.634,P =0.000).Conclusions Right ventricular longitudinal strain could evaluate the degree of decrease in right ventricular function of PH patients and reflex the change of hemodynamics at the same time,which may offer more reliable information to clinical treatment.
3.Early clinical analysis of angina after acute myocardial infarction
Quanlin JIA ; Juying YUAN ; Yidan WANG
Chinese Journal of Primary Medicine and Pharmacy 2015;(24):3798-3800,3801
Objective To investigate the related factors of early angina after acute myocardial infarction,and to provide basis for the disease prevention and control.Methods 1 32 cases with acute myocardial infarction were selected.The clinical data were collected.The occurrence rate of early angina pectoris after acute myocardial infarc-tion,and clinical characteristics were analyzed.The related factors of acute myocardial infarction angina were explored.Results The incidence rate of early angina pectoris after acute myocardial infarction was 29.55%.Within 7 days after acute myocardial infarction occurred angina,the highest rate for 64.1 0%,followed by 7 -1 4 days in the occurrence of angina pectoris,28.21 %.34 cases were the original location of myocardial infarction ischemia and 5 cases were the far part of ischemia,21 cases showed ST segment elevation,1 8 cases showed ST lack blood group downward.Anterior wall,inferior wall infarction composite,successful thrombolytic therapy recanalization,myocardial infarction before episodes of angina pectoris,history of hypertension,heart function classification more than or equal to grade III in patients with acute myocardial infarction occurred after the proportion of early angina pectoris were signifi-cantly higher (all P <0.05).Conclusion Anterior wall,inferior wall infarction composite,successful thrombolytic therapy recanalization,myocardial infarction before episodes of angina pectoris,history of hypertension and cardiac functional grading more than or equal to grade III are related to early angina pectoris after acute myocardial infarction. We should actively take measures aimed at early prevention and treatment of early angina pectoris after acute myocar-dial infarction to avoid illness aggravating,improve the patients'prognosis.
4.Expression of Fas ligand protein in human non-small cell lung cancer and its clinical significance
Yidan LIN ; Yaoguang JIANG ; Ruwen WANG
Journal of Third Military Medical University 2001;23(5):530-532
Objective To explore the expression of Fas ligan d (FasL) protein in human non-small cell lung cancer (NSCLC) and its clinic al significance. Methods Expression of FasL protein was detecte d by immunohistochemical method in 32 resected tumors of NSCLC. Results FasL protein was detected in all of these 32 resected tumors with variant pos itive expression levels ranging from 3.0% to 98.7% [mean (62.0±32.0)%]. T here wa s significant difference between the tumors of different pathological types no s ignificant difference was found between the tumors of different differentiation nor among the tumors of different pTNM stages (P>0.05). Conclusion The results indicated that NSCLC can counterattack the immune cells of t he body and may be the molecular basis for the easily metastasis of adenocarcino ma to in the early stage.
5.Survey of GPI-PLD Gene Polymorphisms in Healthy Persons and Patients With Systemic Lupus Erythematosus
Hong YU ; Jianhua TANG ; Yidan WANG
Journal of Chinese Physician 2001;0(06):-
Objective To analyze the polymorphisms of glycosylphosphatidylinositol-specific phospholipase D (GPI-PLD) gene Exon1 and Exon25,GPI-PLD activity of leucocyte in peripheral blood and their relationship in systemic lupus erythematosus patients of Han nationality in Hunan Chinese.Methods The polymorphisms were analyzed by PCR-SSCP and sequencing. GPI-PLD levels were determined by using glycosylphosphatidylinositol (GPI) anchored placental alkaline phosphatase (PLAP) as substrate and triton-X114 partioning.Results There were fourteen variations in the coverage of GPI-PLD gene Exon 1 of both 109 healthy persons' and 62 systemic lupus erythematosus patients',including seven variations at transcriptional start site upstream and seven variations at Exon1. The codons of variation were 14TTG→AAG (Leu14Lys),17CTC→GTC (Leu17Val),20AGA→AAA (Arg20Lys),21GGT→GGG (Gly21Gly),30GTA→ATA (Val30Ile),which leaded to four missense mutations and one synonymous mutation. In addition, the frequency of the variation at transcriptional start site upstream -24 C→T was significantly different between healthy control and systemic lupus erythematosus patients. At meanwhile, there was a variation in Exon25, the +60496 G→A, between two groups. The total various frequency, which was determined by SSCP, of healthy person was 33 03 percent and systemic lupus erythematosus patient was 25 81 percent. On the basis of the percentage of GPI-anchored PLAP conversion, the leucocyte GPI-PLD activities of total 62 systemic lupus erythematosus patients were measured. As compared with 109 healthy persons as control group, the leukocyte GPI-PLD activities of systemic lupus erythematosus patients were significantly raised, but GPI-PLD activities were not correlated with polymorphism sites significantly.Conclusions The leukocyte GPI-PLD gene in peripheral blood, which belongs to healthy persons and systemic lupus erythematosus patients of Han mationality in Hunan Chinses,is polymorphism.The frequency of transcriptional start site upstream -24 is significantly different between healthy control and systemic lupus erythematosus patients.The leukocyte GPI-PLD activeties of patients' also significantly increase.
6.Correlation between pulmonary arterial presure and right ventricular function by echocardiography in chronic ;thromboembolic pulmonary hypertension
Yidan WANG ; Yidan LI ; Xiuzhang LYU ; Yafeng WU ; Li WANG ; Weiwei ZHU
Chinese Journal of Ultrasonography 2015;(8):648-651
Objective To discuss the correlation between right ventricular function and systolic pulmonary artery pressure (PASP ) in patients with chronic thromboembolic pulmonary hypertension (CTEPH)and explore the change of right ventricular function under different degree of PASP.Methods One hundred and thirty-seven CTEPH patients were divided into four groups by PASP:Group Ⅰ (50 mmHg≤PASP<70 mmHg),20 cases;Group Ⅱ (70 mmHg≤PASP<90 mmHg),35 cases;Group Ⅲ,55 cases (90 mmHg ≤ PASP < 1 10 mmHg);Group Ⅳ (PASP ≥ 1 10 mmHg),27 cases.Echocardiographic parameters include:PASP,tricuspid regurgitation area (ATR ),left ventricular transverse diameter (LVTD), right ventricular transverse diameter (RVTD),inner diameter of main pulmonary artery (DMPA ),inner diameter of left arterial branch (DLPA ),inner diameter of right pulmonary arterial branch (DRPA ).Right ventricular function parameters include:tissue Doppler-derived tricuspid lateral annular systolic velocity (s'),tricuspid annular plane systolic excursion (TAPSE),RV index of myocardial performance (RIMP)and right ventricular fractional area change (FAC).Results There were significant differences in RVTD, TAPSE,FAC and RIMP in CTEPH patients under different PASP(P <0.05).RV structure and function was significantly correlated with PASP in CTEPH patients.With the elevation of PASP,RV was significantly enlarged and RV function becomes worse.Conclusions Echocardiography may contribute to evaluate RV function in CTEPH patients and provide basis for clinical treatment and prognosis evaluation.
7.The change of right atrial function in patients with pulmonary hypertension:a study with two-dimensional speckle-tracking echocardiography
Xiangli MENG ; Yidan LI ; Hong LI ; Yidan WANG ; Weiwei ZHU ; Qizhe CAI ; Xiuzhang LYU
Chinese Journal of Ultrasonography 2017;26(6):472-477
Objective To assess the right atrial(RA) function using two-dimensional speckle-tracking echocardiography(2D-STE) and the value of predicting WHO functional class in patients with pulmonary hypertension(PH).Methods Fifty-four consecutive PH patients were studied and compared with a control group of 24 healthy volunteers.RA function was evaluated by 2D-STE,and the following parameters were recorded:an average longitudinal strain (LS) curve that included LSpos during RA filling and LSneg representing RA active contraction (their summation is LStot),the phasic RA volumes,total RA emptying fraction (TotEF),RA passive(PassEF) and active emptying fraction(ActEF).The associations between these indices and the results of invasive pulmonary hemodynamics,cardiac structure and function level were evaluated.Results LStot,TotEF,LSpos,PassEF were significantly lower in PH patients than in controls(all P<0.01).ActEF/TotEF were significantly higher in WHO functional class (WHO-FC) Ⅱ and WHO-FC Ⅲ patients than in controls(all P<0.05),while were lower in WHO-FCIV patients than in controls(P<0.001).Among PH patients,LStot was negatively correlated with greater RA size and RA pressure (all P<0.01).LStot was also associated with right ventricular (RV) functional and overload parameters.In receiver-operator characteristic analysis,RA LStot was of optimal accuracy for prediction of WHO-FC≥Ⅲ in PH patients (P=0.002).Conclusions PH is associated with impaired reservoir and conduit function,but active contract function of RA is enhanced in WHO-FC Ⅱ and WHO-FC Ⅲ patients,and reduced in WHO-FCIV patients.RA LStot confers an optimal predictive effect of poor WHO-FC in PH patients and indicating prognosis.
8.Progress in pathophysiology and integrated traditional Chinese and Western medicine of post-intensive care syndrome
Zheng WANG ; Luping YANG ; Yidan QIN ; Yu WANG
Chinese Critical Care Medicine 2021;33(2):252-256
With the continuous improvement of treatment ability in intensive care unit (ICU), many critically ill and complex patients have survived due to the development of technology. However, most of them suffer from the psychological and physiological problems of post-intensive care syndrome (PICS). Therefore, the early identification and prevention of PICS is particularly critical. We should understand the pathophysiological mechanism of PICS, strictly implement ABCDEFG bundle management measures [including airway management (A), breath (B), reasonable analgesia and sedation treatment (C), prevention of delirium (D), early rehabilitation (E), family engagement (F), good communication (G)] during ICU hospitalization, and pay attention to reasonable nutritional support, optimizing blood glucose management, providing positive psychological intervention and support to patients through family members' encouragement and accompanying, ICU diary and other forms, following up the health status of patients transferred out/discharged from ICU, providing multi-disciplinary and professional continuing medical services, finding the entry point and timing of traditional Chinese medicine intervention, and giving full play to the advantages of integrated traditional Chinese and Western medicine treatment, which can improve the quality of life of patients. This article reviews the pathophysiological mechanism, risk factors, prevention and management measures, traditional Chinese medicine syndrome differentiation and treatment of PICS, in order to improve the early identification, diagnosis and treatment of critical patients with PICS, and improve the prognosis of patients.
9.Observation on Clinical Effect of Acupuncture with Warm Acupuncture on Female T2DM Patients of Dual Deficiency of Yin and Yang Syndrome
Yuqin LI ; Yidan WANG ; Zhicheng LIU ; Bin XU
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(8):1796-1801
This study was aimed to observe the clinical effect of acupuncture together with warm acupuncture on fe-male type 2 diabetes mellitus (T2DM) patients of dual deficiency of yin and yang syndrome. A total of 92 female T2DM patients of dual deficiency of yin and yang syndrome were divided into two groups, which were priority of yin deficiency in the type of dual deficiency of yin and yang (group 1) and priority of yang deficiency in the type of dual deficiency of yin and yang (group 2). There were 46 cases in each group. The treatment of acupuncture together with warm acupuncture was given for three month. The observation was made on the fasting plasma glucose (FPG), fasting leptin (FLP), fasting insulin (FINS), insulin sensitivity index (ISI), insulin resistance index (Homa-IR), insulin secre-tion index (Homa-β), total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterol (LDL-C), high den-sity lipoprotein cholesterol (HDL-C), body mass, body mass index (BMI) and body fat percentage (F%) before and af-ter treatment. The results showed that the total effective rate of group 1 was 69.57%, while the total effective rate of group 2 was 84.78%. There was no significant statistical difference between two groups. Compared with pretreatment, there were significant decrease on FLP, FPG, FINS, Homa-IR, TC, TG, LDL-C, body mass, BMI, and F% of both groups after treatment (P < 0.01). There was obvious increase on ISI, Homa-β, and HDL-C (P < 0.01). After treat-ment, the FPG, Homa-β and BMI of group 2 were better than group 1 (P< 0.05). After treatment, the level of LDC-C and HDC-L of both groups reached normal level. And the FPG of group 2 also reached normal level. It was con-cluded that acupuncture together with warm acupuncture can significantly adjust the level of fat-pancreatic islet shaft of T2DM patients of dual deficiency of yin and yang syndrome, reduce the leptin resistance and insulin resistance, enhance the sensibility of insulin and the function of pancreatic β cell, and correct the endocrine disorder, gly-cometabolism disorder and lipometabolism disorder. Acupuncture together with warm acupuncture did much better in lowering blood sugar and improving the function of pancreatic β cells of T2DM patients whose priority of yang defi-ciency in the type of dual deficiency of yin and yang than those whose priority of yin deficiency in the type of dual deficiency of yin and yang.
10.Role of TRPV1 in the Regulation of Gastric Motility by Electroacupuncture
Yidan WANG ; Xin CAO ; Hong FENG ; Zhi YU ; Bin XU
Shanghai Journal of Acupuncture and Moxibustion 2014;(12):1083-1085
ObjectiveTo discuss the role of transient receptor potential vanilloid 1 (TRPV 1) in the regulation effect of electroacupuncture on gastric motility.MethodTRPV1 gene knock-out mice (KO mice) and wild-type C57BL/6 mice (WT mice) were selected to receive acupuncture at Zusanli (ST36),Quchi (LI11), Zhongwan (CV12), and Weishu (BL21), and the intragastric pressure was observed before and after acupuncture.ResultElectroacupuncture at Zusanli caused both excitation and inhibition in WT mice, predominated by mild excitation, while electroacupuncture at Weishu, Quchi and Zhongwan all caused inhibition effect; in the KO mice, electroacupuncture at Zusanli, Quchi, Zhongwan, and Weishu all inhibited gastric motility.Conclusion TRPV1 bears certain regulating effect on gastric motility, andacupuncture can inhibit the gastric motility in TRPV gene KO mice.