脉压水平与冠状动脉狭窄程度的关系

目的探讨脉压（PP）水平与冠状动脉狭窄程度的关系。方法118例冠心病患者均行冠脉造影及冠脉狭窄评分,根据冠脉造影结果将其分为冠脉狭窄组和非冠脉狭窄组,评定PP与冠脉狭窄程度的关系。结果冠脉狭窄组PP水平显著高于非冠脉狭窄组,多因素Logistic逐步回归分析表明PP是冠心病冠脉狭窄发生、发展的独立危险因素。结论PP可作为预测冠心病冠脉狭窄严重程度的指标之一。     

冠状动脉病变与肾动脉粥样硬化性狭窄

目的探讨动脉粥样硬化性肾动脉狭窄(ARAS)与脉压及其他相关因素的关系.方法553例入选病例在冠脉造影后行非选择性肾动脉造影,应用多变量Logistic回归分析评价脉压及其他临床因素和ARAS的关系.结果连续3年入选553例患者,24例(4.3%)有轻度肾血管病变(腔径狭窄＜50%),84例(15.2%)ARAS(腔径狭窄≥50%),冠心病者ARAS(22.6%vs 2.0%)及肾血管病变(5.9%vs 1.5%)发生率明显高于非冠心病者.多因素Logistic逐步回归分析显示冠脉狭窄程度、脉压、血肌酐是ARAS发生的独立危险因素.结论ARAS与冠心病冠脉病变程度密切相关.脉压和血肌酐升高是ARAS的独立危险因素.     

老年高血压患者动态脉压指数与冠状动脉狭窄程度的关系

目的探讨老年高血压(EH)患者动态脉压指数(PPI)与冠状动脉(冠脉)狭窄程度的关系。方法对拟诊为冠心病(CHD)的286例老年EH患者按冠脉造影的结果分为CHD组187例,非CHD组99例,以Leaman法进行冠脉狭窄程度评分;监测患者24 h动态血压,计算其动态PPI。结果随着动态PPI逐渐增大,冠脉狭窄程度评分明显增加(P<0.01);CHD组年龄、吸烟、高血压病程、降压达标、糖尿病、血脂异常、脉压(PP)及动态PPI明显高于非CHD组,(P<0.05);Logistic回归分析显示,EH患者CHD的发生与其动态PPI显著相关。动态PPI每增加0.10,CHD发生率增加38%,在对年龄和其他危险因素进行校正后,动态PPI每增加0.10,仍显示CHD发生率增加28%。CHD的发生同样与PP和收缩压(SBP)密切相关(P<0.01),而与舒张压和平均动脉压无相关。结论老年EH患者动态PPI、PP和SBP与冠脉狭窄严重程度呈正相关。     

冠状动脉病变与肾动脉粥样硬化性狭窄

目的探讨动脉粥样硬化性肾动脉狭窄(ARAS)与脉压及其他相关因素的关系。方法553例入选病例在冠脉造影后行非选择性肾动脉造影,应用多变量Logistic回归分析评价脉压及其他临床因素和ARAS的关系。结果连续3年入选553例患者,24例(4.3%)有轻度肾血管病变(腔径狭窄<50%),84例(15.2%)ARAS(腔径狭窄≥50%),冠心病者ARAS(22.6%vs2.0%)及肾血管病变(5.9%vs1.5%)发生率明显高于非冠心病者。多因素Logistic逐步回归分析显示冠脉狭窄程度、脉压、血肌酐是ARAS发生的独立危险因素。结论ARAS与冠心病冠脉病变程度密切相关。脉压和血肌酐升高是ARAS的独立危险因素。     

清晨血压与冠脉狭窄程度的相关性研究

目的探讨清晨血压与冠脉病变严重程度的关系。方法对156例疑似冠心病的病例行冠脉造影术。所有病例均于术前行24 h动态血压监测,根据清晨血压的定义计算出各病例06:00~10:00的收缩压(SBP)、舒张压(DBP)、脉压(PP)值。冠脉病变的狭窄程度用病变血管支数及Gensini积分表示。结果冠脉狭窄组清晨SBP、PP显著高于冠脉正常组,差异有统计学意义(P0.05)。多因素Logistic回归分析显示,清晨SBP、清晨PP与冠脉狭窄程度关系密切。结论清晨PP是冠脉狭窄程度独立的预测因子。     

24小时动态脉压与冠状动脉病变的相关性分析

目的探讨24h动态脉压水平与冠状动脉(冠脉)病变程度的关系。方法对156例入选病例均行冠脉造影术。冠脉病变的严重程度用冠脉病变的血管支数及Gensini积分表示。所有病例均在术前、术后进行24h动态血压监测。结果高血压患者较非高血压患者冠心病患病率明显增高(73.6%比58.4%,P=0.038)。高血压患者冠脉3支血管病变的患病率显著高于非高血压患者(35.2%比12.3%,P=0.001)。冠脉狭窄患者,24h动态测压,其收缩压脉压均显著高于冠脉正常组,差异有统计学意义(P<0.05),且收缩压与脉压随着血管狭窄支数的增加而逐渐增加。结论脉压与冠心病冠脉狭窄程度呈正相关。24h动态脉压在预测冠脉病变程度的严重性方面优于肱动脉脉压。     

脉压与冠状动脉病变狭窄程度的相关性研究

选择冠状动脉造影患者241例，根据造影结果分为冠脉狭窄组与非冠脉狭窄组。比较冠脉狭窄组与非冠脉狭窄组以及不同病变支数患者的血压参数。分析各血压参数与冠脉狭窄发生率的关系，各血压参数与冠脉、病变程度的相关性。结果表明脉压、收缩压增高，冠状动脉狭窄性病变的发生率增加，冠脉狭窄程度加重。冠状动脉狭窄程度与脉压、收缩压呈正相关。     

脉压对老年患者冠脉病变严重程度的预测价值

目的探讨老年患者脉压与冠脉病变严重程度之间的关系。方法 268例行冠脉造影(CAG)检查的老年患者,按其临床表现和CAG的结果分为冠心病(CHD)组[包括不稳定性心绞痛(UAP)组、稳定性心绞痛(SAP)组]和对照组,采用袖带加压法连续测量患者入院后三天的晨起收缩压、舒张压,并计算脉压。依据Gensini评分以及冠状动脉病变的血管支数对冠脉病变严重程度进行评估,探讨其与血压不同成分之间关系。结果 CHD组收缩压和脉压水平明显高于对照组(P<0.05);单支病变组、双支病变组、三支病变组脉压均明显高于对照组(P<0.05),且随病变支数的增多,脉压水平逐渐增高,差异具有统计学意义(P<0.05);UAP组收缩压、脉压均高于对照组和SAP组(P均<0.05)。脉压水平与Gensini评分正相关(r=0.199,P<0.01)。结论脉压较收缩压、舒张压更能反映大动脉弹性,不仅与CHD及冠脉病变的严重程度关系密切,还可能与冠状动脉粥样斑块的不稳定性有关。     

老年高血压患者动态脉压指数与冠状动脉狭窄程度的关系

该文探讨老年高血压(EH)患者动态脉压指数PPI(动态PPI为24h平均脉压即平均PP,平均收缩期血压即平均收缩压)与冠状动脉狭窄程度的关系。方法:对拟诊为冠心病(CHD)的286例老年EH患者按冠脉造影的结果分为CHD组187例,非CHD组99例,以Leaman法进行冠脉狭窄程度评分;监测患者24h动态血压,计算其动态PPI。结果:随着动态PPI逐渐增大,冠脉狭窄程度评分明显增加(P<0.01);CHD组年龄、吸烟、高血压病程、糖尿病、血脂异常、脉压及动态PPI明显高于非CHD组,(P<0.05);Logistic回归分析显示,EH患者CHD的发生与其动态PPI显著相关。动态PP…     

24小时动态脉压与冠状动脉病变严重程度的相关性研究

目的：探讨24小时动态脉压(PP)水平与冠状动脉(冠脉)病变严重程度的关系。方法：对156例入选病例均行冠脉造影术。冠脉病变的严重程度用冠脉病变的血管支数及 Gensini 积分表示。所有病例均在术前、术后测量肱动脉血压,术后进行24小时动态血压监测。结果：高血压患者较非高血压患者冠心病患病率明显增高(73.6%比58.4%P=0.038)。高血压患者冠脉三支血管病变的患病率显著高于非高血压患者(35.2%比12.3%,P=0.001)。冠脉狭窄患者,无论肱动脉测压、还是24小时动念测压,其收缩压(SBP)、脉压均显著高于冠脉正常组,有显著差异(P＜0.05),且收缩压与脉压随着血管狭窄支数的增加而逐渐增加。结论：脉压是冠心病冠脉狭窄发生发展的相关因素,且24小时动态 PP 的预测价值更大。     

脉压与冠状动脉狭窄严重程度的相关性研究

目的探讨脉压与冠状动脉病变狭窄严重程度的相关性。方法对拟诊冠心病或确诊冠心病的住院患者405例,行冠状动脉造影术。根据病变累及左前降支、左回旋支和右冠状动脉支数分为4组:冠状动脉正常组(102例)、单支病变组(77例)、双支病变组(102例)和3支病变病(124例)。冠状动脉病变狭窄的严重程度用病变的血管支数及Gensini积分表示。所有患者在术中测量主动脉血压及外周桡动脉血压。结果3支病变组主动脉、外周桡动脉收缩压和脉压均显著高于冠状动脉正常组(P<0.05),双支病变组主动脉收缩压、外周桡动脉收缩压和脉压显著高于冠状动脉正常组,单支病变组与冠状动脉正常组差异无统计学意义。收缩压与脉压随着狭窄支数的增加而增加。多因素分析结果显示,主动脉脉压、桡动脉脉压、年龄与冠状动脉狭窄程度的关系最为密切。结论脉压是冠心病冠状动脉狭窄发生发展的独立危险因素,且主动脉脉压的预测价值更大。     

中心脉压水平与颈动脉粥样硬化狭窄程度的相关性研究

目的:探讨脉压、收缩压、舒张压水平与颈动脉粥样硬化(CAS)狭窄程度的关系。方法:对80例入选病例均行彩色多普勒超声测定颈总动脉内中膜厚度及斑块积分,根据颈动脉超声结果将患者分为斑块组、非斑块组,测量中心及外周收缩压、舒张压及脉压,应用统计学方法评定其与CAS的关系。结果:斑块组脉压显著高于非斑块组(P<0.01),CAS发生率在脉压≥50mmHg(1mmHg=0.133kPa)患者显著高于脉压<50mmHg患者(P<0.01),多元线性回归分析表明脉压是CAS发生发展的独立危险因素,且中心脉压较肱动脉脉压预测心血管事件的危险性更好。结论:中心脉压可作为CAS狭窄程度的高危预测指标之一。     

脉压与冠状动脉病变程度的关系

目的:探讨脉压(PP)与冠状动脉病变(CAD)程度的关系。方法:对515例因胸痛而住院的患者进行冠状动脉造影,分析确诊的338例冠心病患者和177例非冠心病患者的年龄、收缩压(SBP)、舒张压(DBP)、平均压(MAP)、PP和CAD支数等临床特点。结果:①与非冠心病患者相比,冠心病患者的年龄、SBP、MAP和PP均增加,男性和并发高血压病(EH)比例均增加(P0.05,P0.01)。②随着CAD支数的逐渐增加,年龄增加的变化,以及男性和并发EH比例增加的变化均有高度显著性差异(均P0.01);SBP和PP增加的变化有显著性差异(均P0.05)。与非冠心病患者相比,1支病变、2支病变和3支病变患者的年龄、SBP、MAP和PP增加,男性和并发EH比例均增加(P0.05,P0.01);3支病变与1支病变相比年龄增加(P0.05)。③随着PP的逐渐增加,冠心病患者的年龄、SBP、MAP和CAD支数均逐渐增加,并发EH比例亦逐渐增加,均有高度显著性差异(均P0.01);男性比例呈减低改变,有高度显著性差异(P0.01)。结论:PP水平与CAD有显著的关系:PP增大者,其CAD支数增加;而PP的增加与年龄和并发EH的增加有关。     

24 h平均脉压与冠状动脉病变程度的相关性研究

目的:探讨24h平均脉压(APP)与冠状动脉狭窄程度的关系。方法:对408例入选病例均行冠状动脉造影及冠状动脉狭窄评分,根据冠状动脉造影结果将患者分为冠状动脉狭窄组,非冠状动脉狭窄组,测量24h动态血压,评定其与冠状动脉狭窄程度的关系。结果:冠状动脉狭窄组24h平均脉压显著高于非冠状动脉狭窄组,有极显著性差异(P<0.01),多因素logistic逐步回归分析表明24h平均脉压与冠心病冠状动脉狭窄程度呈正相关(r=0.47,P<0.01)。结论:24h平均脉压可作为预测冠心病冠状动脉狭窄严重程度的指标之一。     

Age-dependent associations between blood pressure and coronary artery calcification in asymptomatic adults

OBJECTIVE: The age-dependent roles of the components of blood pressure (BP) in the development of coronary artery calcification (CAC) are poorly understood. DESIGN: We examined systolic (SBP), diastolic (DBP), mean arterial pressure (MAP) and pulse pressure (PP) as predictors of CAC in 830 asymptomatic, non-diabetic participants in a community-based study who were aged > or = 30 years and free of antihypertensive therapy or known cardiovascular disease. METHODS: CAC was measured with electron beam computed tomography. Tobit regression was used in two age groups (< 50 years and > or = 50 years) to evaluate the relationship of BP components with presence and quantity of CAC, adjusting for traditional coronary artery disease (CAD) risk factors. RESULTS: Among those aged < 50 years, CAC was positively associated with SBP, DBP and MAP, considering each pressure individually and DBP was the strongest predictor (P = 0.0088). Among those aged > or = 50 years, CAC was positively associated with SBP (P = 0.0257) and PP (P = 0.0028), considered individually. When SBP and DBP were in the same model, presence and CAC quantity were positively associated with SBP (P = 0.0024) and negatively with DBP (P = 0.0401), favoring PP as the best predictor of CAC. CONCLUSIONS: SBP, DBP and PP have age-dependent roles in the prediction of CAC similar to their roles in prediction of future CAD events. These observations provide new evidence supporting the measurement of CAC as a surrogate of target organ disease and subsequently, as a predictor of increased risk of future CAD events.     

Association between the severity of coronary artery stenosis and the combination of the difference in blood pressure between arms and brachial-ankle pulse wave velocity

Background: A difference in systolic blood pressure (SBP) ≥10?mmHg between the arms is associated with an increased risk of coronary artery disease (CAD) and mortality in high-risk patients. Methods and results: Four hundred and fourteen patients were divided into three groups according to the percent most severe luminal narrowing of a coronary artery as diagnosed by coronary computed tomography angiography: no or mild coronary stenosis (0–49%), moderate stenosis (50–69%) and severe stenosis (≥70%) groups. The relative difference in SBP between arms in the severe group was significantly lower than those in the no or mild and moderate groups. The brachial-ankle pulse wave velocity (baPWV) significantly increased as the severity of coronary stenosis increased. We confirmed that severe coronary stenosis was independently associated with both the relative difference in SBP between arms and baPWV, in addition to age, gender, hypertension, dyslipidemia, diabetes mellitus and ankle-brachial index by a logistic regression analysis. The group with a relative difference in SBP between arms of <1?mmHg and baPWV?≥?1613?cm/s showed a higher percentage of patients with severe coronary stenosis than groups that met neither or only one of these criteria. Conclusion: The combination of the relative difference in SBP between arms and baPWV may be a more effective approach for the non-invasive assessment of the severity of CAD.     

高血压患者动态脉压指数与冠状动脉病变的相关性分析

目的探讨高血压患者动态脉压指数（pluse pressure index,PPI）与冠状动脉病变的相关性。方法纳入2010年4月～2013年4月实施冠状动脉造影（CAG）的高血压患者355例。根据CAG结果将患者分为冠心病组（n=237）及非冠心病组（n=118）。对所有研究对象均进行24 h动态血压监测,记录收缩压（SBP）、舒张压（DBP）和脉压（PP）,计算脉压指数（PPI,PPI=PP/SBP）。分析上述因素与冠状动脉病变的相关性。结果与非冠心病组相比,冠心病组患者PP及PPI水平更高,分别为（77.8±8.7）mmHg vs.（64.7±7.6）mmHg,（0.52±0.08） vs.（0.45±0.10）,差异有统计学意义（P＜0.05）。在冠心病患者中,PPI值越高,患者冠脉病变数值越高（P＜0.01）。Logistic分析结果显示, PPI（OR=1.39）、PP（OR=1.23）、SBP（OR=1.27）均为冠状动脉病变发生的危险因素（P均＜0.01）。结论 PPI值有助于预测高血压患者冠状动脉病变的严重程度。     

Reverse J-curve relation between diastolic blood pressure and severity of coronary artery lesion in hypertensive patients with angina pectoris.

The existence of the J-curve in hypertension treatment remains controversial. The major question is whether the increase in mortality from coronary disease is induced by the lowering of blood pressure (BP) or by the severity of underlying coronary artery disease. We recruited patients with a history of hypertension (systolic BP (SBP) >160 mmHg and/or diastolic BP (DBP) >90 mmHg) and a diagnosis of angina pectoris with angiographically confirmed coronary artery lesion. The relationship among the treated levels of SBP and DBP, the severity of coronary artery lesion, and the clinical consequences were investigated. Among the 234 enrolled patients, 115 experienced further events, 19 of which were serious. There were no significant differences in the average BP of patients with and those without events, but the coronary severity indices (CSI) were significantly greater in patients with events. As a function of DBP from < or = 74 to 105 < or = mmHg, there was a positive association with the incidence of serious events, and a reversed J-curve in CSI with a nadir at 95-104 mmHg. A similar relationship was observed in SBP, but a potentially unfavorable outcome was suggested in the lowest SBP range of < or = 124 mmHg. In conclusion, there was no J-curve for DBP in hypertensive patients with angina pectoris; rather, the lower the DBP, the better was the prognosis. Interestingly, the severity of coronary lesion is in a reversed J-curve relation with DBP, suggesting that high BP plays a critical role in serious events in hypertensive patients with moderate coronary artery lesions.