原发性高血压动态血压与左室肥厚相关性研究

目的:总结原发性高血压患者血压与左心室肥厚的相关性。方法:采用血压计与动态血压监测仪测量86例原发性高血压(EH)患者的偶测血压(CBP)及24h动态血压(24hABP),同时集合超声心动图仪检测其左心室肥厚(Left Ventricular Hypertrophy,LVH)的状况。结果:EH患者的CBP显著高于24hABP及白天动态血压(DABP)(P<0.001),CBP与左室重量指数(LVMI)无明显相关(P>0.05),而24hABP、DABP、NABP、血压负荷与LVMI呈显著正相关(P<0.01)。结论:ABP与LVMI的相关性优于CBP,在CBP的基础上采用ABPM作二级筛选,能提高诊断的可靠性,避免一些不必治疗的对象实施过度的降压治疗,同时有助于识别应积极治疗的高危患者。     

原发性高血压患者动态血压监测指标和左室肥厚的相关性研究

目的:研究原发性高血压(EH)患者动态血压监测指标和左室肥厚(LVH)的关系,为临床决策和治疗提供依据。方法:收集宁夏医科大学总医院心内科患者90例,行超声心动图和24h动态血压监测(ABPM),根据左室重量指数(LVMI)分为EH伴LVH组(n=37)、EH不伴LVH组(n=23)和对照组(n=30),比较组间差异,分析动态血压各参数和LVMI的相关性。结果:(1)收缩压、夜间舒张压、收缩压负荷和LVMI,EH伴LVH组EH不伴LVH组对照组;(2)LVMI与收缩压、舒张压、脉压、血压变异性和夜间血压负荷呈正相关,与夜间血压下降率呈负相关。结论:左室肥厚与动态血压水平、脉压、血压变异性和夜间血压负荷呈正相关,与夜间血压下降率呈负相关。     

原发性高血压并高胰岛素血症患者左心室肥厚发生情况分析

目的 :观察原发性高血压 (EH)并高胰岛素血症 (HIS)患者左心室肥厚的发生情况。方法 :选择 4 6例EH患者 (EH组 )和 4 0例EH并HIS患者 (EH +HIS组 ) ,2组年龄、性别构成及病程差异无统计学意义。用放射免疫法测定空腹血胰岛素 ,用HOMA IR公式计算胰岛素抵抗指数 (IR) ;根据二维超声心动图测定结果计算左心室质量 (LVM)和左心室质量指数 (LVMI) ;计算 2组体重指数 (BMI)。结果 :EH +HIS组IR、LVMI、左心室肥厚发生率明显高于EH组 (P均 <0 .0 5 )。结论 :在原发性高血压患者中 ,胰岛素抵抗和HIS是左心室肥厚的重要危险因素。     

高血压前期患者左心室肥厚与血压变异的相关性研究

目的探讨高血压前期患者左心室肥厚(left ventricular hypertrophy,LVH)与血压变异的相关性。方法 392例高血压前期患者分为左心室肥厚组204例、无左心室肥厚组188例,心脏超声计算左心室质量指数(left ventricular mass index,LVMI),并且均做动态血压监测。结果 (1)左心室肥厚组24h动态血压分析显示,平均SBP、SBPV、DBPV水平较高,差异有统计学意义(P0.05)。(2)24h动态血压与LVMI相关分析:随着SBPV增大,LVMI增大(P=0.001),而DBPV、平均DBP与LVMI无显著相关性(P=0.435;P=0.126);24h平均SBP越大,LVMI越大(P=0.013)。(3)回归分析提示SBPV、平均SBP、LDL-C、平均动脉压、2h PBG与LVMI呈正相关。结论高血压前期患者中,LVMI与血压变异性有关,尤其是与SBPV相关。     

原发性高血压患者24h平均脉压与左心室肥厚的关系

目的　探讨原发性高血压 (EH)患者 2 4h平均脉压 (PP)与左心室肥厚 (LVH)的关系。方法　对10 8例EH患者进行 2 4h无创性动态血压监测 ,并根据有无左心室肥厚 (LVH)分为两组 :非LVH组 4 0例、LVH组6 8例进行观察。结果　LVH组 2 4h平均收缩压 (SBP)、2 4h平均PP显著大于非LVH组 (P <0 .0 1)。结论　EH患者的 2 4hPP与LVH密切相关。     

高血压病患者动态脉压与左心室肥厚的关系

目的 :探讨高血压病患者左心室肥厚 (leftventricularhypertrophy ,LVH)与动态脉压和主动脉根部内径 (aorticrootdimension ,AOD)变化的关系。方法 :应用 2 4h动态血压监测和超声心动图检测 10 7例高血压病患者 ,以左室重量指数 (leftventricularmassindex ,LVMI)作为评价LVH的指标 ,将患者分为左心室肥厚组 (n =2 9)和无左心室肥厚组 (n =78)。结果 :2 4h平均脉压、白昼平均脉压、夜间平均脉压和主动脉根部内径在高血压左心室肥厚组和无左心室肥厚组之间差异均有显著性 (P <0 .0 5 ) ;多元逐步回归分析结果显示 :夜间平均脉压和AOD与LVMI的关系最密切 (P <0 .0 0 1)。结论 :主动脉根部内径和脉压 ,尤夜间平均脉压增大在LVH中起重要作用。     

原发性高血压患者动态血压负荷、昼夜节律与左心室肥厚的关系

目的　探讨原发性高血压 (EH)患者动态血压负荷、昼夜节律改变与左心室肥厚的关系。方法　采用2 4h动态血压监测 (2 4hABPM)仪 ,对 92例高血压患者进行监测 ,并应用超声心动图检查确定分为左心室肥厚(LVH)组和无LVH组。对比 2 4h、白天及夜间血压负荷值和血压昼夜节律的参数指标。结果　两组血压负荷值、血压昼夜节律差异有显著统计学意义 (P <0 .0 5 ) ,高血压LVH组男女患者间血压负荷值、昼夜节律差异无显著统计学意义 (P >0 .0 5 )。结论　动态血压负荷值及血压昼夜节律高血压LVH密切相关 ,对左心室肥厚的发生和预后有重要的评估价值     

高血压患者血压昼夜节律变化与肾损害关系的探讨

目的 :探讨动态血压与尿微球蛋白和原发性高血压 (EH)肾损害的关系。方法 :2 4 h动态血压昼夜节律消失 (A组 )、节律正常 (B组 )各 30例 EH和 30例正常人 (对照组 )的血、尿 β2 微球蛋白 (β2 - MG) ,并对两组参数进行相关性分析。结果 :两组临床资料 ,偶测血压 (CBP) ,日间血压无显著差异 ,而血、尿 β2 - MG均较对照组高 (P<0 .0 0 1 )。尿 β2 - MG在早期时即出现异常 ;A组的 2 4小时血压、夜间血压、血压负荷及尿 β2 - MG均高于 B组 (P<0 .0 1 )。ABPM昼夜节律消失者 ,肾功能损害明显 ,而CBP不能揭示两组病人之间的这种差异。结论 :ABPM和尿 β2 - MG能更好地反映肾损害的关系 ,有利于早期肾损害的发现     

轻中度高血压病的动态血压水平与心脏功能的关系

目的 :对 5 4例轻中度高血压 (EH)患者进行了 2 4h动态血压监测及心脏彩色超声心动图的观察 ,旨在探讨动态血压和心功关系。结果 :轻中度EH患者左室肥厚 (LVH)检出率为 48.1 % ,其中向心性肥厚 (CH)占 75 % ,扩张性肥厚 (DH)占 1 4.3% ,非对称性肥厚占 1 0 .7%。夜间SBP下降 <1 0 %者占 6 6 .7% ,DBP下降 <1 0 %者占 6 1 .1 %。动态血压水平 ,尤其是收缩压水平与心脏舒张功能的相关性较收缩功能密切。结论 :( 1 )轻中度EH患者治疗应注意早期逆转LVH及恢复血压的正常昼夜节律。 ( 2 )动态血压水平 (尤其收缩压水平 )可作为判断轻中度EH患者心脏舒张功能的损害程度的指标之一。     

福辛普利治疗原发性高血压及逆转左室肥厚的效果观察

为观察福辛普利对轻、中度原发性高血压 (EH)的降压疗效及对左心室肥厚的逆转作用 ,选择 34例轻、中度伴左室肥厚EH患者 ,给予每日 1次服用福辛普利 10mg ,2周后如舒张压 >12kPa则剂量加倍 ,4周后如仍无效则每日加服双氢克尿噻 2 5mg ,疗程 12周 ,治疗前后测血压及作超声心动图检查。结果显示 :福辛普利能显著降低血压 ,有效率达 91.1% ,其中 2 3 %患者加用利尿剂 ,治疗前后血压下降幅度差异有高度显著性 (P <0 .0 1) ,室间隔厚度、左心室后壁厚度指数较治疗前显著改善 (P <0 .0 1)。提示福辛普利能有效降低轻、中度EH患者的血压及逆转左心室肥厚 ,降低靶器官损害的危险性     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.