扩张型心肌病患者血清尿酸浓度的动态变化

目的探讨扩张型心肌病(DCM)心力衰竭(心衰)患者血清尿酸浓度的变化规律及其临床意义。方法比较DCM(46例)不同心功能状态下尿酸浓度;比较22例DCM心衰控制前后的尿酸浓度;比较DCM中左室内径≥65mm(26例)和＜65mm(16例)患者的尿酸浓度;比较DCM入院时未用利尿剂及正在服用利尿剂患者的尿酸浓度;比较DCM中血尿素氮＞7.5(18例)和≤7.5mmol/L(28例)患者的尿酸浓度。结果DCM心功能Ⅱ、Ⅲ、Ⅳ级的尿酸分别为(303±34)、(403±95)和(595±190)mmol/L;心衰控制前后尿酸浓度为〔(609±218)和(414±147)mmol/L(P＜0.01)〕;左室内径≥65mm者尿酸明显高于＜65mm者;入院时服与未服利尿剂者尿酸无明显差异(P＞0.05);血尿素氮＞7.5与≤7.5mmol/L者尿酸浓度无明显差别(P＞0.05)。结论DCM心衰患者尿酸浓度增高,独立于服用利尿剂及肾功能不全,且随着心衰加重而明显增高,是反映心衰患者病情严重程度的一个指标。     

心力衰竭患者血清尿酸水平的变化

目的探讨心力衰竭患者血清尿酸水平的变化规律及其临床意义.方法比较97例心力衰竭患者与60例健康对照组的血清尿酸水平;比较心力衰竭患者(97例)不同心功能状态下的血尿酸水平;比较80例患者心衰控制前、后血清尿酸水平的变化;比较入院时未用过利尿剂与已用过利尿剂的心衰患者的血清尿酸水平.结果心力衰竭组与健康对照组的血清尿酸水平分别为(488.79 23.78)μmol/L和(256.62 26.24)μmol/L,两者之间差异有统计学意义(P＜0.05);心力衰竭组心功能分级Ⅱ、Ⅲ、Ⅳ级的血尿酸水平分别为(348.97 25.90)μmol/L、(450.17 16.09)μmol/L和(561.05 26.71)μmol/L,其两两比较,差异有显著性意义(P＜0.05);80例患者心衰控制前后的血清尿酸水平分别是(509.27±10.74)μmol/L和(402.01 29.70)μmol/L,差异有统计学意义(P＜0.05);入院时未用过利尿剂与已用过利尿剂的心衰患者的血清尿酸水平差异无统计学意义(P＞0.05).结论心力衰竭患者血清尿酸水平随心功能加重而升高,血清尿酸水平不受服用利尿剂的影响.血清尿酸水平是反映心衰患者病情严重程度的一个指标.     

老年心衰患者血清尿酸水平的探讨

目的探讨老年心力衰竭患者的血清尿酸水平的意义.方法采用日本7020日立全自动生化仪速力法测定58例老年心力衰竭患者的血清尿酸.结果按心功能级别分组的血尿酸水平Ⅰ～Ⅱ级组(10例)261.59±70.13μmol/L;Ⅲ级组(15例)334.88±92.06μmol/L;Ⅳ级组(33例)459.58±105.6μmol/L.3组血清尿酸水平差异非常显著(P<0.01),心功能越差,血清尿酸水平越高(P<0.01);男女两组血清尿酸值比较,差异有显著意义(P<0.05).结论检测血清尿酸水平,为判断老年心力衰竭患者病情及其预后,提供一个有意义的生化指标.     

急性心肌梗死患者血浆肾上腺髓质素浓度与心功能的关系

目的 :探讨急性心肌梗死 (AMI)患者血浆肾上腺髓质素 (AM)浓度与心功能的关系。方法 :用放射免疫法测定 2 0例 AMI患者在发病后第 2 4小时及 15例正常人血浆 AM和心房利钠肽 (ANP)浓度 ,AMI患者还同时用超声心动图测左室射血分数 (L VEF)。结果 :AMI患者血浆 AM浓度无论在心力衰竭组 [(15 .6± 2 .1) pmol/L]或无心力衰竭组 [(7.4± 1.1) pm ol/ L]都显著高于对照组 [(2 .3± 0 .3) pmol/ L,P <0 .0 1,P <0 .0 5 ],而且心力衰竭组显著高于无心力衰竭组 (P <0 .0 5 )。 AMI患者血浆 AM浓度与 ANP浓度 (r =0 .47,P <0 .0 5 )及L VEF(r =- 0 .5 3,P <0 .0 5 )呈相关关系。结论 :血浆 AM参与了 AMI后心功能的调节 ,是对 AMI后心功能下降的一种代偿性反应     

老年慢性心力衰竭患者血清瘦素水平变化及其与血压的关系

目的探讨慢性心力衰竭(CHF)患者血清瘦素水平变化及其与血压的关系。方法观察慢性心力衰竭患者35例及健康对照组30例血清瘦素、左心室射血分数(LVEF)及血压水平,分析瘦素水平与血压及LVEF之间的关系。结果CHF组与对照组比较,血清瘦素水平分别为(11.4±5.8)、(7.3±3.1)μg/L,收缩压分别为(142.1±19.7)(、127.0±17.6)mm Hg,舒张压分别为(85.0±12.9)、(78.4±9.7)mmHg,两组比较,差异有统计学意义(P<0.05和P<0.01)。CHF患者按LVEF程度分为2组,LVEF<30%组瘦素水平为(12.4±7.8)μg/L,30%~40%组瘦素水平为(10.8±1.8)μg/L,两组间比较差异有统计学意义(P<0.05),表明LVEF水平越低,瘦素水平越高。多元回归分析显示,CHF患者血清瘦素水平分别与体质指数(r=0.910,P<0.01)、收缩压(r=0.859,P<0.01)、舒张压(r=0.680,P<0.05)呈正相关,与LVEF呈负相关(r=-0.729,P<0.01)。结论老年CHF患者血清瘦素水平较健康对照组高,并与LVEF程度呈负相关;CHF患者血压明显高于健康对照组,且瘦素水平与血压呈正相关,提示血清瘦素水平与高血压之间存在密切联系,共同促进CHF发展。     

N-末端心房利钠肽和脑利钠肽对充血性心力衰竭的诊断意义

目的　探讨血浆N 末端心房利钠肽 (Nt proANP)及N 末端脑利钠肽 (Nt proBNP)对充血性心力衰竭 (CHF)的早期诊断和呼吸困难鉴别诊断的临床意义。方法　选择 2 0 0 1年 12月～ 2 0 0 2年 4月在北京协和医院门诊、急诊及住院的患者 111例 ,其中有呼吸困难表现的CHF患者 (LVEF≤4 5 % ) 5 0例 ,有呼吸困难表现的非CHF患者 2 1例 ,正常对照组 4 0例。超声心动图测定LVEF ;ELISA法测定血浆Nt proANP和Nt proBNP浓度。 结果　CHF组的血浆Nt proANP、Nt proBNP浓度比对照组有显著的提高 [分别为 (114 9 7± 5 2 7 7)比 (194 8± 93 2 )pmol/L和 (70 2 4± 30 0 9)比(187 7± 5 3 5 ) pmol/L ,P <0 0 0 1];有呼吸困难的CHF组比呼吸困难非CHF组的Nt proANP、Nt proBNP浓度有显著的提高 [分别为 (114 9 7± 5 2 7 7)比 (30 5 6± 12 4 1) pmol/L和 (70 2 4± 30 0 9)比 (2 4 4 8± 5 5 3) pmol/L ,P <0 0 0 1]。取正常对照组利钠肽类物质 (NPs)浓度的 x +1 96s为正常上限值 ,Nt proANP诊断CHF的敏感性为 90 % ,特异性为 90 % ;Nt proBNP诊断CHF的敏感性为94 % ,特异性为 95 %。在CHF组内 ,血浆Nt proBNP浓度在心功能不同分级之间均有显著差异。Nt proANP和Nt proBNP浓度与LVEF均呈显著负相关 (r =- 0     

老年充血性心力衰竭患者生长激素-胰岛素样生长因子1轴相互关系的探讨

目的 :探讨充血性心力衰竭 (CHF)患者生长激素 (GH) 胰岛素样生长因子 1(IGF 1)轴的相互关系。方法 :CHF患者 95例 ,健康对照者 30例。CHF按NYHA心功能分级标准随机分为Ⅱ级 2 8例 ,Ⅲ级 36例 ,Ⅳ级31例。采静脉血检测GH、IGF 1。结果 :GH在对照组与心功能Ⅳ级组分别为 (1.5 6 2± 0 .96 8)mIU/L∶(5 .832±1.4 14 )mIU/L(P <0 .0 1) ,但GH在对照组与心功能Ⅱ、Ⅲ级组的比较中 ,差异无显著性意义 (P >0 .0 5 )。IGF 1在对照组、心功能Ⅱ、Ⅲ和Ⅳ级组呈进行性减少 ,分别为 [(136 .6 2 8± 77.5 5 4 )、(98.72 5± 4 5 .115 )、(6 6 .86 3±33.95 1)及 (49.4 4 2± 2 3.4 5 6 ) μg/L](P <0 .0 1)。GH与IGF 1在对照组、心功能Ⅱ、Ⅲ和Ⅳ级组的直线回归方程分别为Y =10 7.5 +12 .9X (P <0 .0 1) ,Y =91.4 +2 .9X (P <0 .0 1) ,Y =6 7+1.3X (P <0 .0 1)与Y =4 1.7- 0 .1X (P <0 .0 1)。结论 :慢性CHF患者IGF 1水平降低 ,并随CHF加重而呈逐渐下降趋势。在重度CHF患者中 ,GH明显升高 ,但GH刺激机体产生IGF 1的作用减弱 ,GH IGF 1轴呈现异常的变化。IGF 1用于治疗CHF可能具有潜在的临床应用价值     

脑钠素在慢性心力衰竭诊断、预后评估中的价值

目的 :探讨血清脑钠素水平变化在慢性心力衰竭患者的临床诊断、预后评估中的意义。方法 :用酶联免疫吸附法检测 72例慢性心力衰竭患者 (心力衰竭组 )和 2 0例无症状性心力衰竭患者 (无症状性心力衰竭组 )的血清脑钠素 3 2水平 ,并以 3 0例健康成人作为正常对照组。结果 :①心力衰竭组、无症状性心力衰竭组和正常对照组的血清脑钠素 3 2水平分别为 (85 8 7± 3 2 6 9)ng/L、(4 3 9 0± 14 2 8)ng/L和 (10 9 3± 3 7 6)ng/L ,3组间两两比较差异均有显著性 (P均 <0 0 1) ;心力衰竭组、无症状性心力衰竭组和正常对照组的血清脑钠素 3 2水平的 95 %可信区间分别为 781 9～ 93 5 5ng/L、3 72 2～ 5 0 5 8ng/L和 95 3～ 12 3 3ng/L ,相互之间无交叉。②血清脑钠素 3 2水平对心力衰竭的诊断界值为 12 0ng/L时 ,敏感性和特异性分别为10 0 %和 86 67%。③心功能 (NYHA )Ⅰ级、Ⅱ级、Ⅲ级和Ⅳ级的血清脑钠素 3 2水平分别为 (4 3 9 0± 14 2 8)ng/L、(63 8 5± 2 2 4 5 )ng/L、(878 0± 3 3 4 0 )ng/L和 (10 45 8± 5 85 1)ng/L ,各级间差异有显著性 (P均 <0 0 1) ;血清脑钠素 3 2水平与NYHA分级呈正相关 (r =0 818,P <0 0 1) ,与原发病无相关 (P >0 0 5 )。④心力衰竭组 2 4例血清脑钠素 3 2     

慢性心力衰竭患者的血清可溶性Fas配体和可溶性Fas受体

目的 分析血清可溶性Fas配体(sFasL)和可溶性Fas受体(sEas)与慢性心力衰竭(CHF)的相关性。方法采用酶联免疫吸附双抗体夹心法检测33例CHF患者(CHF组,心功能Ⅱ-Ⅳ级,NYHA)血清sFasL和sFas浓度,并与18例心功能Ⅰ级(NYHA)组比较。结果 CHF与心功能Ⅰ级间sFasL浓度无显著统计学差异[231.50±84.50(心功能Ⅱ级216.50±96.00,Ⅲ级226.80±85.70,Ⅳ级244.00±73.00)vs217.50±89.00pg/mL,P>0.05]。而CHF组血清sFas浓度显著高于心功能Ⅰ级组[1353.30±507.71(心功能Ⅱ级1154.85±371.20,Ⅲ级1412.88±493.62,Ⅳ级1875.67±806.10)vs983.11±461.26pg/mL,P<0.05]。结论 血清sFasL与CHF无相关性。而血清sFas与CHF存在显著相关性。且sFas浓度增高的程度与CHF的严重程度相平行,sFas浓度增高可能在CHF发病机制中起重要作用。     

急性淋巴细胞白血病用甲氨喋啶治疗的动力学研究

目的 :根据不同年龄 ,采用两种不同大剂量甲氨喋啶 2 4h持续静滴下的稳态血药浓度及毒性反应。方法 :分别于甲氨喋啶静滴开始后 1、6、2 3、44、6 8h点采集静脉血 2 ml及 1、2 4h点脑脊液 2 m l,应用免疫偏振荧光法检测血清与脑脊液 MTX浓度。结果 :9例老年组采用 2 g· M- 2 剂量 ,在 1、6、2 3、44、6 8h点血清 MTX浓度分别为 5 6 .97± 4.7μmol/ L、40 .46± 7.0 6μmol/ L、17.31± 9.76μm ol/ L、0 .91± 1.34μm ol/ L、0 .2 5± 0 .2 2μmol/L ;在 1、2 4h点脑脊液 MTX浓度分别为 0 .38± 0 .2 4μm ol/ L、2 .0 7± 0 .76μmol/ L。 16例中青年组采用 3 g· M- 2剂量 ,各小时点血清 MTX浓度分别为 82 .15± 12 .13μmol/ L、6 2 .33± 10 .0 6μm ol/ L、14.75± 7.0 6μm ol/ L、1.71± 1.6 8μm ol/ L、0 .45± 0 .44 μmol/ L;脑脊液 MTX浓度分别为 0 .5 4± 0 .35 μmol/ L、1.96± 0 .5 2 μm ol/ L。结论 :此两种剂量能达到急性淋巴细胞白血病 (AL L)细胞聚谷氨酸盐 MTX饱和所需的剂量 ,毒性反应是可以接受的。     

老年心力衰竭患者心功能与血浆B型钠尿肽和尿酸的相关性研究

目的探讨老年心力衰竭(CHF)患者心功能与血浆B型钠尿肽(BNP)和血尿酸的相关性。方法选择132例老年CHF患者作为CHF组,并按心功能分级(NYHA)Ⅰ级26例、Ⅱ级38例、Ⅲ级40例、Ⅳ级28例。同期选择健康体检者50例作为对照组。分别测定血浆BNP及血尿酸水平,比较不同心功能级别入选患者的血浆BNP水平和血尿酸水平。结果 CHF组患者血浆BNP和血尿酸水平明显高于对照组,差异有统计学意义[(784.19±206.00)ng/L vs(41.25±15.34)ng/L,(405.24±90.16)μmol/L vs(286.43±78.68)μmol/L,P<0.01];不同心功能分级患者血浆BNP和血尿酸水平两两比较,差异有统计学意义(P<0.05,P<0.01);CHF时,BNP与心功能分级、血尿酸、左心室舒张末内径(LVEDD)呈正相关(r=0.76、0.33、0.22,P<0.05);与LVEF呈负相关(r=-0.34,P<0.05);尿酸与心功能分级、LVEDD呈正相关(r=0.41、0.23,P<0.05);与LVEF呈负相关(r=-0.24,P<0.05)。结论血浆BNP和血尿酸水平与心功能分级可能具有相关性。     

重度慢性心力衰竭患者血尿酸水平与预后的关系

目的 分析血清尿酸（SUA）水平与重度慢性收缩性心力衰竭（CHF）患者预后的关系。 方法 收集2014年4月~2015年1月于我院住院纽约心脏病协会（NYHA）心功能Ⅳ级CHF患者189例，对其随访6个月，终点事件为全因死亡。分析入院SUA水平与CHF住院患者6个月内全因死亡的关系。 结果 按随访结果将患者分为死亡组和存活组。死亡组入院SUA水平明显高于存活组[（514±30） μmol/L vs.（432±32） μmol/L，P<0.01]。Pearson分析显示N末端脑钠尿肽前体（NT-proBNP）与SUA具有正相关性（r=0.345，P<0.05）。多因素Logistic回归分析显示，SUA水平（OR=1.213，95%CI:1.081-3.621，P<0.05），NT-proBNP（OR=1.456，95%CI:1.113-5.432，P<0.01），糖尿病（OR=2.105，95%CI:1.221-4.553，P<0.05）是CHF患者6个月全因死亡事件发生的独立危险因素。 结论 血清SUA水平与重度CHF预后有相关性。     

Serum uric acid is associated with microalbuminuria in prehypertension

Serum uric acid is associated with cardiovascular disease. However, the independent role of uric acid in the development of cardiovascular disease is uncertain. This study examined the cross-sectional association of serum uric acid level with microalbuminuria among 6771 subjects without diabetes or hypertension. Blood pressure was categorized as prehypertension (systolic blood pressure, 120 to 140 mm Hg or diastolic blood pressure, 80 to 90 mm Hg) and normotension (systolic blood pressure, <120 mm Hg and diastolic blood pressure, <80 mm Hg). Microalbuminuria was found in 4.0% of normotensive subjects (n=4819) and in 7.9% of prehypertensive subjects (n=1952). Prehypertensive subjects with microalbuminuria had higher uric acid level than those with normoalbuminuria (men, 387 [68] mmol/L versus 371 [69] mmol/L; P=0.017; women 286 [56] mmol/L versus 262 [54] mmol/L; P=0.006). However, the difference in serum uric acid level according to the presence or absence of microalbuminuria was not found in the normotensive group. Multiple logistic regression models showed that, in the prehypertensive group, after adjustment for other cardiovascular risk factors, the highest uric acid quartile entailed >2 times greater risk for microalbuminuria than the lowest quartile in both men (odds ratio, 2.12; 95% CI, 1.16 to 3.87) and women (odds ratio, 3.36; 95% CI, 1.17 to 9.69). In the normotensive group, serum uric acid quartile did not show the independent association with microalbuminuria. In conclusion, serum uric acid level was strongly associated with microalbuminuria in prehypertensive subjects.     

慢性充血性心衰患者心功能与血尿酸水平相关性研究

目的　研究慢性充血性心衰患者心功能与血尿酸水平的相关性。方法　选择稳定的心衰患者179例 ,予正规的抗心衰治疗 ,排除房颤患者 ,对患者进行生化全套检查 ,同时进行心脏多普勒检查 ,测量E峰速度、A峰速度 ,E/A比值 ,E峰减速时间 (EDT)。左室收缩末及舒张末内径 ,左室射血分数 (LVEF) ,和心输出量 (SV)。以E/A >2或E/A >1和EDT <14 0ms为限制性二尖瓣充盈形式 (RMFP) ,将患者分为RMFP组和非RMFP组 ,比较两组的血尿酸差异 ,并判断与心功能的关系。结果　RMFP组患者的尿酸 (μmol/L)为 377 32±130 4 7,NRMFP组患者的尿酸为 30 7 72± 12 4 6 1,两者比较有显著差异 (P <0 0 5 ) ,心功能Ⅰ ,Ⅱ ,Ⅲ ,Ⅳ级之间尿酸依次升高 ,但仅Ⅳ级分别与Ⅰ ,Ⅱ ,Ⅲ级比较 ,两两之间有显著差异 ,从血尿酸和收缩参数LVEF ,SV ,CO之间的相关系数来看 ,血尿酸和收缩参数LVEF之间存在负相关 ,即血尿酸越高 ,LVEF越低 ,(P <0 0 5 ) ,排除其它因素后 ,血尿酸和LVEF的相关系数为 - 2 92 2 ,P <0 0 1。结论　升高的血尿酸与慢性充血性心衰患者的收缩和舒张功能有显著的相关性 ,从理论上提示黄嘌呤氧化酶的抑制剂可能有利于改善心衰患者的心功能。     

Hyperuricemia associated with high cardiac event rates in the elderly with chronic heart failure

OBJECTIVES: Congestive heart failure (CHF) is the major cause of death and hospitalization in the elderly population. Simple markers that can be measured anywhere at low cost are necessary to identify patients at high risk. Recent studies have reported that hyperuricemia is a prognostic marker for CHF. However, it is not yet known whether serum levels of uric acid may provide prognostic information in the elderly population. Therefore, this study tried to identify the clinical characteristics of elderly CHF patients (+/-70 years) in our institution and to evaluate whether uric acid levels can effectively estimate the prognosis for elderly CHF patients. METHODS AND RESULTS: Uric acid levels were analyzed in 247 CHF patients, and patients were followed up for 451 +/- 235 days (mean +/- SD). Elderly CHF patients aged > or =70 years (123 patients) had higher rate of hypertension, lower current smoking rate and higher uric acid levels than those aged < 70 years (124 patients). There were 72 cardiac events including cardiac deaths and readmissions for worsening CHF. Multivariate analysis with the Cox proportional hazard model showed that uric acid was the only independent predictor of cardiac events (hazard ratio 1.544, 95% confidence interval 1.215-2.582, p < 0.0001) in the elderly with CHF. The highest quartile of uric acid level was associated with the highest risk of cardiac events (a 4.45-fold compared to the lowest quartile). Kaplan-Meier analysis revealed that uric acid levels effectively risk stratified elderly CHF patients for cardiac events. CONCLUSIONS: These findings suggest that measurement of uric acid levels in elderly CHF patients may add valuable prognostic information to predict cardiac events.     

LOW-DENSITY LIPOPROTEIN PARTICLE SIZE,TRIGLYCERIDE-RICH LIPOPROTEINS,AND GLUCOSE TOLERANCE IN NON-DIABETIC MEN WITH ESSENTIAL HYPERTENSION

The aim of the study is to investigate serum lipoproteins abnormalities including low-density lipoprotein (LDL) particle size, and their relationship with other cardiovascular risk factors in men with essential hypertension.

Plasma glucose and serum insulin levels during oral glucose tolerance test (OGTT), serum lipoprotein(a), apolipoprotein (apo) A-I, apo B, cholesterol and triglycerides in serum and in lipoproteins, and LDL particle diameter were measured in thirty-eight consecutive newly-diagnosed non-diabetic untreated hypertensive men and 38 healthy male controls.

Plasma glucose at baseline, 60 and 120 min during OGTT was significantly higher in patients than controls whereas serum insulin levels did not differ between patients and controls. Serum apo B and triglycerides were significantly raised in patients compared with controls (1.08 ± 0.17 g/L [mean ± SD] vs 0.97 ± 0.22 g/L, p < 0.05, and 1.56 ± 0.90 mmol/L vs 1.15 ± 0.57 mmol/L, p < 0.05, respectively). Very-low-density lipoprotein (VLDL) triglycerides and LDL-cholesterol were increased in patients compared with controls (0.89 ± 0.79 mmol/L and 0.54 ± 0.35 mmol/L, p < 0.05, and 4.08 ± 0.85 mmol/L and 3.60 ± 0.92 mmol/L, p < 0.05, respectively) whereas high-density lipoprotein (HDL) cholesterol was lower in patients compared with controls 0.95 ± 0.22 mmol/L and 1.07 ± 0.20 mmol/L, p < 0.05). Adjustment for body mass index, abdominal/hip perimeter ratio and area under the glucose curve did not attenuate the relationship between hypertension and VLDL-triglycerides. Six patients and two controls had a mean LDL diameter ≤ 25.5 nm and in the former serum triglycerides ranged from 1.86 mmol/L to 2.37 mmol/L. Mean LDL particle diameter in both patients and controls showed an inverse relationship with log-transformed serum triglycerides (r = ? 0.51, p < 0.001 and r = ? 0.47, p < 0.005, respectively). Among patients, those with serum triglycerides± 1.58 mmol/L had a lesser mean LDL diameter than those with triglycerides above this threshold (25.78 ± 0.47 nm vs 26.30 ± 0.35 nm, p < 0.001).

Higher plasma glucose, serum apo B and LDL-cholesterol as well as the decrease in serum HDL-cholesterol in patients with hypertension are consistent with high coronary heart disease risk. Not only mild hypertriglyceridemia but also high-normal serum triglycerides in themselves or as a surrogate of a predominance of small dense LDL particles in plasma convey an additional risk for cardiovascular disease in hypertensive patients even though routine plasma lipids are within or near normal range.     

老年慢性心衰患者高敏C反应蛋白和血尿酸变化的意义

目的:探讨老年慢性心力衰竭(CHF)患者高敏C反应蛋白(hs-CRP)、血尿酸(UA)的浓度变化及意义。方法:选择67例NYHAⅡ一Ⅳ级老年CHF患者(心衰组)及29例正常老年人(正常对照组),测定血清UA、hs-CRP的水平,超声心动图测量左心室射血分数(LVEF)。结果:心衰组患者血清hs-CPR[(8.78±4.35)mg/L∶(1.27±0.48)mg/L]、UA[(451±83)μmol/L∶(289±25)μmol/]均较正常对照组明显增高(P均0.01)。且随着NYHY心功能级别增高,血UA水平逐渐升高,其组间差异性显著(P0.01),二者呈正相关(r=0.39;P0.01)。血清hs-CPR随NYHA分级的增加而升高,但组间无显著性差异(r=0.187,P=0.079)。血UA水平与血清hs-CRP无显著相关(r=0.389,P=0.065)。结论:老年慢性心力衰竭患者血尿酸水平与心衰分级有很好的相关性,它结合NYHA分级方法及左室射血分数能更好地反映心衰患者的严重程度。     

Elevated serum uric acid levels are associated with diastolic dysfunction in patients with dilated cardiomyopathy

Objective To assess whether serum uric acid, which is a marker of impaired oxidative metabolism, might correlate with left ventricular systolic and diastolic dysfunction in patients with chronic heart failure (CHF). Background Uric acid levels, which are frequently elevated in patients with CHF, correlate with leg vascular resistance. The effects of elevated levels of uric acid on cardiac function in patients with CHF have never been evaluated. Methods We studied 150 outpatients with CHF who came to our heart failure clinic. Patients underwent a complete echo-Doppler examination, with measurement of mitral E wave and mitral A wave velocities, E/A ratio, E wave deceleration time (DtE), left ventricular volumes, ejection fraction, and stroke volume. A restrictive mitral filling pattern (RMFP) was defined as either E/A ratio >2 or E/A >1 and DtE <140 milliseconds. Results Mean age was 62.2 ± 7.8 years (86% male); 24 patients (16%) had an RMFP. Patients with an RMFP had significantly higher uric acid levels compared with patients without RMFP (0.48 ± 0.14 mmol/L vs 0.38 ± 0.08 mmol/L, respectively, P < .001). Uric acid levels correlated significantly with mitral E wave velocity (r = .22, P < .01), E/A ratio (r = .21, P < .05), DtE (r = .26, P < .01), and RMFP (P = .0001). There was no correlation between uric acid and left ventricular volumes, ejection fraction, or stroke volume. In a multivariate model, uric acid predicted DtE independently of renal function, diuretic dose, and left ventricular volumes. Conclusion Elevated uric acid levels are associated with diastolic dysfunction in CHF. Xanthine oxydase inhibition in patients with CHF might theoretically result in an improvement of diastolic function. (Am Heart J 2002;143:1107-11.)     

血清尿酸水平与血运重建术后心力衰竭患者预后的相关性及降尿酸治疗的效果

目的 探讨血清尿酸（SUA）水平与血运重建术后慢性心力衰竭（CHF）患者预后的关系和观察降尿酸治疗的效果。 方法 选取2016年8月到2017年8月于济宁市第一人民医院心内科住院期间完成经皮冠状动脉介入（PCI）治疗或冠状动脉旁路移植术（CABG）的CHF患者150例，根据SUA水平分为高尿酸血症组和尿酸正常组，观察相关指标进行分析血清尿酸水平与CHF患者预后的相关性；同时选取部分高尿酸血症患者降尿酸治疗，治疗6个月后分析不同组间临床数据的差异性。 结果 ①通过多因素logistic回归分析，仅高尿酸血症是预后不良的独立预测因素，OR=2.19，95%CI（1.54-4.02），P<0.01。②SUA水平与与NT-ProBNP呈正相关关系（r=0.982，P<0.01），而与LVEF存在负相关关系(r=?0.573，P<0.01)。③降尿酸治疗6个月后，终点事件发生率较对照组显著下降（P<0.05）。 结论 SUA水平是血运重建术后CHF患者复合终点事件的独立预测因子，降SUA治疗的复合终点事件发生率显著降低，有望成为改善老年CHF患者预后的新方法。