ACC12:肾去神经化治疗难治性高血压聚焦反应时间

2012-03-30 MedSci MedSci原创

 在美国心脏病学会(ACC)2012科学年会上,肾去神经化治疗难治性高血压临床研究的长期随访结果引入关注。一些初始无反应者在介入治疗后数月血压出现下降,这促使医生相信这些患者是慢反应者而不是无反应者。   美国俄亥俄州大学的Paul A Sobotka报告,在Symplicity HTN-1试验的45例初始认为肾去神经化术后无反应者中,58%的患者在术后3个月有反应(定义为收缩压降低10 mm

 在美国心脏病学会(ACC)2012科学年会上,肾去神经化治疗难治性高血压临床研究的长期随访结果引入关注。一些初始无反应者在介入治疗后数月血压出现下降,这促使医生相信这些患者是慢反应者而不是无反应者。

  美国俄亥俄州大学的Paul A Sobotka报告,在Symplicity HTN-1试验的45例初始认为肾去神经化术后无反应者中,58%的患者在术后3个月有反应(定义为收缩压降低10 mmHg以上),64%1年后有反应,82%2年后有反应,3年后100%的患者都有反应。另外,肾去神经化的治疗作用是显著、持久的,并在不同亚组中一致,包括老年人、糖尿病患者和肾损伤患者,老年人尤其会受益。这种介入治疗并未显示任何主要安全性问题。

  论坛共同主席、美国芝加哥大学的George Bakris指出,最诱人的信息是无反应者经过一段时间产生了反应。没有人知道为什么,但这绝对是一个新的发现。

  德国蒂宾根大学的Axel Bauer报告了他们研究所对一小批患者进行肾去神经化后的动态血压监测(ABPM)转归结果。他指出,尽管诊室血压和ABPM有良好的相关性,但肾去神经化治疗似乎对后者的影响更小,这种介入治疗对ABPM降低的作用仅有边缘显著性。荷兰乌德勒支大学医学中心的Michiel Voskuil报告了28例行肾去神经化治疗的病例,也未发现ABPM有显著降低。

  但是Sobotka强调,研究者们进行的独立研究显示了诊室血压的降低,这与Symplicity试验结果一致,而ABPM的降低尽管小于诊室血压,也是可以期待的。

  论坛共同主席、英国伯明翰大学的Suzanne Oparil指出,在诊室血压外我们还需要了解更多。Bakris也同意ABPM是决定性的,在正在进行的关键性美国去神经化试验——Symplicity HTN-3中,每例患者都会进行ABPM监测。

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    2012-04-01 freve