1.Clinical research of the ankle-brachial index in the elderly patients with coronary heart disease with metabolism syndrome
Fei LONG ; Shan JIANG ; Jun YANG
Chinese Journal of Postgraduates of Medicine 2009;32(18):20-22
Objective To investigate the relationship between the ankle-brachial index (ABI)and the extent of coronary artery stenosis and the left ventricular function in elderly patients with coronary heart disease (CHD)with metabolism syndrome (MS). Methods A total of 140 patients with coronary artery disease was study subjects. In which, 66 cases complicated MS (MS group), 74 cases without MS (non MS group). ABI and the left ventricular function was examined in an patients. Results ABI was 0.90±0.32 in MS group, and 1.03±0.26 in non MS group, there was significant difference between two groups(P=0.015). Compared with non MS group, significant lower ratio of ABI in MS group [43.9%(29/66) vs 27.0%(20/74)] (P=0.038); whereas much more 3-vessel disease in ABI≤0.9 patients compared with those of ABI > 0.9 patients [86.3%(25/29) vs 37.8%(14/37) ], significant lower of the left ventricular function in ABI≤0.9 patients compared with those of ABI >0.9 patients (P<0.05). Conclusion There is more severe of coronary artery stenosis in ABI≤0.9 patients for CHD with MS, more attention should be payed to CHD patients combined with MS.
2.Influence of transcatheter closure for atrial septal defects on heart remodeling and ventricular function in patients at different ages
Tianhe YANG ; Yongyao YANG ; Qingan JIANG ; Shan YU
Chinese Journal of Tissue Engineering Research 2009;13(39):7707-7710
OBJECTIVE: To investigate the geometric changes and ventricular function of heart after percutaneous closure of atrial septal defect according to patient age at the time of the procedure. METHODS: A total of 109 patients with atrial septal defect admitted to Department of Cardiology, Guizhou Provincial People's Hospital between June 1998 and October 2008 were retrospectively analyzed, including 53 males and 56 females aged 3.5-70 years. According to their age, the patients were divided into child group (aged=7 years, n=31), adolescent group (n=42, aged 8 18years) and adult group (n=36, aged > 18 years). Cardiac remodeling was assessed by transthoracic echocardiography before ASD closure and 6 months after atrial septal defect closure, including lateral diameter of left and right atrium (LALD, RALD), ratio of LALD/RALD, diastolic diameter of left and right ventricle (LVDD, RVDD), RVDD/LVDD ratio, and pulmonary diameter (PD), ejection fraction (EF) of LV and RV. RESULTS: 109 patients were all included in final analysis. Compared with preoperative results, the right atrium, RALD, RVDD,RALD/LALD, RVDD/LVDD ratio and PD were significantly decreased, while the left atrium and LALD significantly increased,and EF of left and right atrium was remarkably improved 6 months following atrial septal defect closure (P< 0.05-0.01).Moreover, the heart remodeling and heart function amelioration after atrial septal defect closure of child group were better than adolescent and adult groups (P < 0.05), but there were no significant differences between adolescent and adult groups (P>0.05).CONCLUSION: Transcatheter closure of atrial septal defect is safe and effective for all patients of different ages; in particular,results at children stage are better than adolescent and adult stages.
3.Monte Carlo simulation and experimental investigation of 125I interseed dose attenuation
Zhi LI ; Shan JIANG ; Zhiyong YANG ; Hongsheng BAI ; Xingfu ZHANG
Chinese Journal of Radiological Medicine and Protection 2015;35(5):389-392
Objective To investigate the interseed dose attenuation for multiple 125I seeds.Methods Monte Carlo simulation was done by Geant 4 to investigate the dose distribution of single seed and multiple seeds.The results were compared with the dose calculation method from TG43-U1 and examined by experiments.Results The difference of single seed dose distribution between Monte Carlo method and line source model was ± 3%.The difference between Monte Carlo method and experiment result was ± 5%.The interseed dose attenuation of multiple seeds at the interesting points was 3.8% to 13.2% and the average interseed dose attenuation was 7.2%.The difference of experiment result and Monte Carlo result was less than 6%.Conclusions The interseed attenuation is about 7% and the maximum value may be larger than 13% for multiple seeds.The interseed dose attenuation may be larger in tissue.So it is not accurate to calculate the dose distribution by using TG43-U1.
4.Development and experimental research on the physical model of male pelvic organ group
Wanyu LIU ; Xingji WANG ; Pan LI ; Shan JIANG ; Zhiyong YANG
International Journal of Biomedical Engineering 2016;39(6):345-349
Objective To develop the physical model of male pelvic organ group and conduct corresponding prostate puncture experiments.Because sufficient research and plenty of surgical training is very important for improving the surgical treatment effect of prostate puncture surgery,in which the deformation of needle and tissue has significant influences on surgical precision.Methods Based on the magnetic resonance images,the 3D reconstruction of human pelvic organs group was performed,and then the monomer organ moulds were designed.The monomer organ models were made by a new type of polyvinyl alcohol (PVA) hydrogel which is a biomimetic material and can simulate biomechanical properties of different tissues by adjusting the proportion of components.The monomer organ models were assembled to simulate the internal environment of pelvic cavity based on the human anatomical structure,and the experiments of insertion force and deformation were conducted.Results The results of insertion force experiments indicated that the mechanical properties of the proposed model of pelvic organ group were coincident with the force variation in real surgury.During the insertion deformation experiments,the deformation of needle and organs could be clearly observed in the ultrasound images,which indicates that the pelvic organ group has good ultrasonography compatibility.Conclusions The proposed physical model of male pelvic organ group can meet the requirements of experiment research and surgical training of prostate puncture,which provides foundation for improving precision and popularization of puncture surgery.
5.The Comparative Research on Curative Effect of Mosapride and Domperidone on Treating Gastroparesis Diabeticorum (DGP)
Shan JIANG ; Zhengduan GUO ; Biliang CHEN ; Xiaomin YANG
Journal of Medical Research 2006;0(08):-
Objective To contrast the curative effect of mosapride with that of domperidone on gastroparesis diabeticorum (DGP).Methods 52 DGP definite patients were divided into two groups randomly, mosapride group and domperidone group. The clinical effect and the change and untoward effect of gastric emptying time of this two medicines were observed after treatment for four weeks’.Results The curative effect of mosapride in treating DGP was obviously better than that of domperidone The total clinical effective rate between this two groups showed significant difference (P
6.Model for pancreatic cancer in rats and the count of pancreatic myofibroblast
Shan LIANG ; Zhulin YANG ; Xiongying MIAO ; Yanchun LI ; Yaxiang JIANG
Basic & Clinical Medicine 2006;0(08):-
Objective To establish a pancreatic cancer model in Sprague Dawley(SD) rats,and to study the distribution and the counts of myofibroblast(MF) in pancreatic cancer and non-cancerous pancreatic tissues.MethodsDirectly implanted DMBA into pancreas parenchyma of SD rats and established TSA intervening group and control group. The carcinogenesis of rats executed within 3~5 months were inspected by HE stain and microscopy for pathomorphological changes.Myofibroblast(MF) was stained by Heidenains method. Results (1)The prevalence of pancreatic cancer in experimental group was 48.7%(18/37), including 17 pancreatic ductal adenocarcinoma and 1 fibrosarcoma. The prevalence of pancreatic cancer in intervering group was 33.3%(12/36), including 11 pancreatic ductal adenocarcinoma and 1 fibrosarcoma. The maximal diameters of tumor mass of experimental group was higher than that of intervering group (P
7.Pathological characteristics of lupus-like renal damages induced by exogenous double stranded DNA
Yumin XIA ; Shan JIANG ; Hongxia YANG ; Layian XIONG
Chinese Journal of Rheumatology 2009;13(11):741-744,插1
Objective To investigate the pathological characteristics of lupus-like renal damages induced by double stranded DNA (dsDNA) derived from Trypanosoma Equiperdum (TE). Methods The TEs were propagated in normal rats and isolated from fresh rat blood by DEAE cellulose-chromatography. Their kinetoplast dsDNA (kDNA) was purified with Gibson's method. The emulsive mixture of kDNA and incomplete Freund's adjuvant (IFA) was injected into normal BALB/c mice subcutaneously. Eight weeks Later some parameters were examined, including sera titers of ANA and anti-dsDNA antibodies, 24h urine protein concentration, ESR, BUN, Scr and renal histological active index (AI). The pathological characteristics of renal tissues were observed under optical and electron microscopes, and then compared with that of BXSB mice and lupfis nephritis (LN) patients with positive anti-dsDNA antibodies in the sera. Results The results of all immunological parameters of TE kDNA-immunized mice corresponded with that of LN. Their renal damages mainly represented nephropathy syndrome. The pathological characteristics of these mice were similar to that of BXSB mice and LN patients, but Ⅱ (mesangial proliferative) and Ⅳ (diffuse proliferative) subtypes were more common in the former. Conclusion The pathological characteristics of renal damages in the mice immunized with TE dsDNA are similar to that of human LN induced by anti-dsDNA antibodies. This mice model could be used as a tool for invostigating the pathogenesis of LN.
8.Application of pulse-indicated continuous cardiac output in patients with acute inferior wall myocardial infarction
Gang WANG ; Zhijun SUN ; Bo JIANG ; Bo YANG ; Zhaoliang SHAN
Chinese Journal of cardiovascular Rehabilitation Medicine 2015;24(2):191-195
Objective: To explore the guiding significance of transpulmonary thermodilution pulse-indicated continuous cardiac output (PiCCO) in treatment for patients with acute inferior wall myocardial infarction (AIMI). Methods: A total of 26 AIMI patients in intensive care unit of cardiology department in our hospital from Jul 2012 to Jan 2014 received PiCCO and ultrasonic cardiography (UCG) to monitor cardiac output (CO) and cardiac index (CI), and their correlation analysis. Results: When PiCCO placement and after placement 72h, PiCCO monitoring CI were (2.77±0.77)L•min-1•m-2, (3.17±0.39) L•min-1•m-2 respectively, there was significant difference(P<0.01), UCG measured CI were (2.49±0.64)L•min-1•m-2, (2.63±0.24) L•min-1•m-2, there was no significant difference(P>0.05); PiCCO monitoring CO were(4.78±1.06)L/min, (5.08±1.53) L/min respectively, there was significant difference(P<0.05), UCG measured CO were(4.51± 0.86)L/min, (4.57±0.91) L/min, there was no significant difference(P>0.05); and CI,CO measured by PiCCO were significantly higher than those of UCG group (P<0.01 both) after PiCCO placement 72h. Conclusion: Pulse-indicated continuous cardiac output can offer more sensitive hemodynamic indexes compared with UCG, which possesses important treatment guiding significance in patients with acute inferior wall myocardial infarction and unstable hemodynamics.
9.Analysis of 10-year early neonatal death in the NICU
Yanling YANG ; Yurui JIANG ; Zhaofang CUI ; Fengjing CUI ; Ruobing SHAN
Chinese Journal of Emergency Medicine 2014;(6):610-614
Objective To analyze the main causes of early neonatal death in Qingdao Women &Children's Hospital in the latest 10 years.Methods The medical records of early neonatal death in the Qingdao Women&Children’s Hospital from January 2002 through December 201 1 were analyzed.Results A total of 16 314 neonates were available to study,and 525 of them died.The mortality of early neonatal death within a week after birth was 77.71% (408 cases),including 214 premature infants and 194 mature infants.A comparison of mortality between the first 5-year and the second 5-year showed that the underlying trend of mortality was downward (P <0.05 ).The mortalities of early neonatal death within 1 day,3 days, and 4-7 days after birth were 1 10 cases (27.00%),192 cases (47.06%),and 106 cases (25.98%), respectively,and most of the neonates died within 3 days after birth;and the number of severe neonates died within 24 hours was higher than that in other two groups (P <0.01).The leading causes of early neonatal death in 10 years were:preterm birth-related factors (97 cases,23.78%),severe asphyxia (91 cases, 22.3%),congenital malformations (66 cases,16.2%).From 2002 to 2006,the top three main causes of early newborn death were severe asphyxia,congenital malformations and acute respiratory distress syndrome (ARDS),whereas from 2007 to 2011,the leading causes of death were ARDS,severe asphyxia,and congenital malformations.In comparison of early neonatal death between different gestational ages,preterm infants’death occurred mainly in 32 weeks,accounting for 26.72%.Conclusions In our hospital,the early neonatal mortality was decreased in the latest 10 years,and majority of deaths occurred within 3 days after berth,and preterm infants’death occurred mainly in 32 weeks.The leading causes of overall early neonatal death in order of frequency were premature birth,severe asphyxia and congenital malformations,but in later 5 years this order of leading causes changed.
10.Comparison of intraocular pressure measured by Icare rebound tonometer and Goldmann applanation tonometer
He-zheng, ZHOU ; Shao-yang, ZHANG ; Wen-shan, JIANG
Chinese Journal of Experimental Ophthalmology 2011;29(5):456-459
Background As a new tonometer,it is necessary to assess the clinical value of Icare rebound tonometer.Objective This study was to compare the intraocular pressure(IOP)values measured by Icare with that measured by GAT,and discuss the clinical value of leare rebound tonometer. Methods IOP measurement was performed on 152 eyes of 78 subjects with suspicious glaucoma,glaucoma,refractive error and normal examinnee by Icare and GAT respectively.The Icare IOP was measured firstly and then the GAT IOP was carried out with the 3-or 5-minute interval.The IOP values were compared between Ieare and GAT.This study was approved by Ethic Committee of Wuhan General Hospital of Chinese PLA.Written informed consent was obtained from each subject prior to this study. Results The mean IOP values of Icare and GAT were(19.16±5.03)mmHg and(18.41±4.52)mmHg respectively.The differences between Icare IOP and CAT IOP were less than or equal to 1 mmHg in 96 of 105 eyes(63.2%).The positive correlation was found between the Icare IOP and GAT IOP(r=0.940,P<0.01).The Ieare IOP was lower than that of GAT when IOPIcare<16 mmHg,however,the IOP of Icare were higher when IOPIcare≥6 mmHg;the IOP of Icare were higher than that of GAT in the total CCT range.The correlation coefficients of IOP of Icare or CAT with CCT were 0.341(P<0.01)and 0.333(P<0.01),respectively. Conclusion Compared with GAT,Icare is more feasible in clinic because it is practicable and reliable.