比索洛尔对慢性心力衰竭患者心率及神经内分泌因子昼夜节律的影响

被引:23
作者
张廷星
林金秀
王长溪
谢泓
机构
[1] 福建医科大学附属第一医院心血管内科
关键词
慢性心力衰竭; 比索洛尔; 心率; 神经内分泌因子;
D O I
10.16439/j.cnki.1673-7245.2013.03.007
中图分类号
R541.6 [血液循环衰竭];
学科分类号
100201 [内科学];
摘要
目的探讨比索洛尔对慢性心力衰竭患者心率及神经内分泌因子昼夜节律的影响。方法入选轻到中度慢性收缩性心力衰竭患者(NYHAⅡ-Ⅲ)40例为心力衰竭组,随机分为两亚组(n=20),第1组7:00-8:00服用比索洛尔,第2组19:00-20:00服用比索洛尔;另选正常人20位作为对照组。治疗前和治疗4周后行动态心电图检查,分别于2:00、6:00、10:00、14:00、18:00、22:00共6个时间点测定血浆去甲肾上腺素(NE)、肾上腺素、血管紧张素Ⅱ(AngⅡ)、醛固酮水平。结果慢性心力衰竭患者24h平均心率明显高于正常对照组[(78.7±8.4)比(69.8±9.3)次/min,P<0.05],夜昼心率比值比正常对照组高(0.93比0.86),分别有31例(77.5%)和4例(20.0%)存在非杓型心率。慢性心力衰竭患者各个时间点血浆NE、肾上腺素、AngⅡ、醛固酮水平均比正常对照组高(P<0.01),且昼夜节律消失。相关分析发现无论是对照组还是心力衰竭组,心率与血NE、肾上腺素、AngⅡ水平呈正相关(对照组:分别r=0.6、0.5、0.6;心力衰竭组:分别r=0.7、0.5、0.4,均P<0.05),而与醛固酮水平无相关。干预后,两组心力衰竭患者夜昼心率比值明显降低(第1组:0.89比0.93,第2组:0.88比0.94),第1、2组分别有37.5%(6/16)和66.7%(10/15)的患者由非杓型心率转变为杓型心率。同样也发现两组干预后神经内分泌因子均较治疗前明显降低(P<0.05),但都对昼夜节律没有影响,且两组差异无统计学意义(P>0.05)。结论慢性心力衰竭患者存在24h心率和神经内分泌因子节律异常,不同时间服用比索洛尔均可降低慢性心力衰竭患者心率及神经内分泌因子水平,但均未显著改变昼夜节律。
引用
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页码:232 / 237
页数:6
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