期刊
INTERNATIONAL JOURNAL OF CARDIOLOGY
卷 363, 期 -, 页码 43-48出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcard.2022.06.045
关键词
Neurally-mediated syncope; Non-prodromes syncope; Head-Up Tilt Table Test; Adenosine; Adenosine Test
In syncopal patients without underlying structural disease, the levels of ADP are associated with the clinical presentation of neurally mediated syncope and the outcomes of HUTT and ADT. NPS patients with positive HUTT show excessive ADP release at the time of syncope, explaining the lack of prodromes in this form of syncope.
Background: In syncopal patients without underlying structural disease, we sought to investigate the association of Adenosine Plasma Levels (ADP) with the clinical presentation of neurally mediated syncope (NMS) and the outcomes of Head-Up Tilt Table Test (HUTT) and Adenosine test (ADT). Methods: We studied 124 patients with different clinical types of NMS, i.e., Vasovagal (VVS, n=58), non-prodromes (NPS, n=18), or situational syncope (SS, n=48), using a standard protocol including HUTT and ADT. During HUTT, ADP was measured in the supine position, at table tilting and in syncope. Results: Baseline ADP did not differ among groups. ADP at syncope were higher in NPS (n=5) compared to VVS (n=20): 0.23 vs. 0.12 mu M, p=0.03, and SS (n=22): 0.04 mu M, p=0.02. In NPS, ADP increased from supine to syncope (n=5): 0.15 vs. 0.23 mu M, p=0.04. In VVS, ADP increased only from supine to tilt position: 0.11 vs. 0.14 mu M, p=0.02. In SS, ADP did not change during HUTT. In positive vasodepressor HUTT, ADP increased from supine to tilt position (p=0.002) and at syncope (p=0.01). In SS, 20.0% exhibited cardioinhibitory HUTT vs. 6.8% in other forms of syncope (p=0.04). In SS, 22.9% manifested positive ADT vs 6.6% in other types of syncope (p=0.012). Conclusion: The subset of NPS patients with positive HUTT, show excessive ADP release at the time of syncope. This may explain the lack of prodromes in this form of syncope. Such observations contribute to the under-standing of distinct profiles of clinical forms of syncope and may differentiate the management approach accordingly.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据