冠状动脉内应用硝酸甘油和维拉帕米治疗冠状动脉血流缓慢现象的效果

被引:25
作者
常书福 [1 ]
马剑英 [1 ]
钱菊英 [1 ]
舒先红 [2 ]
葛均波 [1 ]
机构
[1] 上海市心血管病研究所复旦大学附属中山医院心内科
[2] 上海市心血管病研究所复旦大学附属中山医院心脏超声室
关键词
冠状动脉; 血流速度; 硝酸甘油; 维拉帕米;
D O I
暂无
中图分类号
R541.4 [冠状动脉(粥样)硬化性心脏病(冠心病)];
学科分类号
100201 [内科学];
摘要
目的研究硝酸甘油和维拉帕米对冠状动脉(冠脉)血流缓慢现象的治疗效果。方法入选64例因胸痛行冠脉造影证实心外膜主要冠脉血管无狭窄病变但血流缓慢的患者,根据治疗用药分为硝酸甘油组(35例)和维拉帕米组(29例);选取年龄、性别、心血管危险因素等匹配而冠脉血流正常的29例患者为对照组。冠脉血流缓慢定义为造影剂在3个心动周期内不能到达血管末端。硝酸甘油组患者于造影后经造影管冠脉内注入硝酸甘油100~400μg后重复造影至血流明显改善;维拉帕米组则注入维拉帕米100~400μg至血流明显改善。以TIMI帧计数(TFC)法定量评价冠脉血流,比较冠脉血流缓慢患者使用硝酸甘油、维拉帕米前后的TFC值和血流正常者的TFC值,以及两组冠脉血流缓慢患者分别使用硝酸甘油和维拉帕米后的TFC变化值。结果存在血流缓慢的前降支、回旋支、右冠脉的基础TFC值在维拉帕米组分别为78.3±19.4、57.2±14.6、56.9±12.5,硝酸甘油组分别为70.8±21.7、55.3±12.5、51.1±15.4,对照组三支血管的TFC值分别为29.2±4.4、23.1±3.5、19.7±1.8。维拉帕米组治疗后TFC值分别下降至37.7±9.3、31.5±11.3、24.6±4.4(与基础状态比较,均P<0.01),硝酸甘油组治疗后TFC值分别下降至42.3±8.9、36.7±6.8、30.3±5.9(与基础状态比较,均P<0.01);但均高于正常对照组(均P<0.05)。而维拉帕米组用药前后的TFC变化值大于硝酸甘油组(均P<0.05)。结论冠脉血流缓慢患者冠脉内注射维拉帕米的即刻治疗效果优于硝酸甘油,但两组患者冠脉血流仍未恢复到正常水平。
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