Stoupel E, Martfel J N, Rotenberg Z
Toor Heart Institute, Beilinson Medical Center, Petah Tiqva, Israel.
J Basic Clin Physiol Pharmacol. 1994 Jul-Dec;5(3-4):315-29. doi: 10.1515/jbcpp.1994.5.3-4.315.
The goal of this study was to determine whether differences exist in the frequency of paroxysmal atrial fibrillation and stroke (cerebrovascular accident) on days of different geomagnetic activity levels. Geomagnetic activity was divided into four levels: quiet (I degree), unsettled (II degree), active (III degree), and stormy (IV degree). Measurements were made according to the six highest hourly geomagnetic parameters, in nanotesla units, over 24 hours. The study period covered 1185 consecutive days, from January 1990 to March 1993. All patients treated in the Admissions Department of a major multiprofile university hospital for stroke (cerebrovascular accident) (977 patients) or paroxysmal atrial fibrillation (653 patients) were included. Groups were also divided by sex and age (< or = 65 years vs. > 65 years) for comparison.
(1) There was a significant negative correlation between daily paroxysmal atrial fibrillation and geomagnetic activity level (r = 0.976, p = 0.02); (2) The absolute number of daily admission for paroxysmal atrial fibrillation was higher on geomagnetic activity I degree days than on IV degree days (p < 0.004); (3) Stroke showed the same negative correlation with geomagnetic activity as paroxysmal atrial fibrillation, but only in males 65 years of age or less (r = 0.976, p = 0.027) suggesting a predominantly arrhythmic origin of stroke (cerebrovascular accident) in this group; (4) The male/female ratio for stroke was also adversely correlated with geomagnetic activity (r = 0.99, p = 0.0008), with the highest absolute number occurring on geomagnetic activity I degree days (X2 = 4.538, p = 0.03). These data are in accordance with previous studies showing increased heart electrical instability during periods of lowest geomagnetic activity.
本研究的目的是确定在不同地磁活动水平的日子里，阵发性心房颤动和中风（脑血管意外）的发生频率是否存在差异。地磁活动分为四个级别：平静（I级）、不稳定（II级）、活跃（III级）和剧烈（IV级）。测量是根据24小时内每小时最高的六个地磁参数（以纳特斯拉为单位）进行的。研究期间涵盖了1990年1月至1993年3月连续的1185天。纳入了一家大型综合性大学医院住院部治疗中风（脑血管意外）的所有患者（977例）或阵发性心房颤动患者（653例）。还按性别和年龄（≤65岁与＞65岁）分组进行比较。
（1）每日阵发性心房颤动与地磁活动水平之间存在显著负相关（r = 0.976，p = 0.02）；（2）阵发性心房颤动每日入院的绝对人数在地磁活动I级的日子比IV级的日子更高（p < 0.004）；（3）中风与地磁活动的负相关与阵发性心房颤动相同，但仅在65岁及以下男性中存在（r = 0.976，p = 0.027），表明该组中风（脑血管意外）主要起源于心律失常；（4）中风的男女比例也与地磁活动呈负相关（r = 0.99，p = 0.0008），在地磁活动I级的日子绝对人数最高（X2 = 4.538，p = 0.03）。这些数据与之前的研究一致，表明在地磁活动最低的时期心脏电不稳定性增加。
