Background

To examine the reasonable duration of continuous electrocardiographic monitoring (CEM) to detect AF at acute ischemic stroke.

Materials and Method

811 consecutive patients admitted to Tsuruga Municipal Hospital by acute ischemic stroke between April 2013 and December 2021 were enrolled in this study. Excluding 78 patients, 733 patients were analyzed by cluster analysis with SurvCART algorithm, followed by Kaplan-Meier analysis.

Results

The analysis provided step graphs for 8 subgroups. The duration of CEM to achieve the sensitivity of 0.8, 0.9, and 0.95 in each could be calculated. The duration of CEM to achieve the sensitivity of 0.8 are 18 days in female patients with heart failure (HF) (subgroup 1), 24 days in male patients with HF (subgroup 2), 22 days in patients without HF with arterial occlusion and pulse rate (PR) more than 91 (subgroup 3), 24 days in patients without HF with occlusion with PR less than 91 (subgroup 4), 18 days in patients without HF without occlusion with lacuna (subgroup 5), 26 days in patients without HF, occlusion, and lacuna, with arterial stenosis (subgroup 6), 15 days in patients without HF, occlusion, lacuna, and stenosis with BMI more than 21%(subgroup 7), and 44 days in patients without HF, occlusion, lacuna, stenosis and with BMI less than 21% (subgroup 8).

Conclusions

Duration of CEM with the sensitivity of 0.8, 0.9, and 0.95 could be determined by presence of HF, female sex, arterial occlusion, PR more than 91/minute, presence of lacuna, presence of stenosis, and BMI more than 21%. (250)

中文翻译：

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影响急性缺血性脑卒中房颤持续心电图监测合理持续时间的因素

背景

检查连续心电图监测 (CEM) 的合理持续时间以检测急性缺血性卒中的 AF。

材料与方法

2013 年 4 月至 2021 年 12 月期间，敦贺市立医院因急性缺血性卒中入院的 811 名连续患者被纳入本研究。排除 78 名患者，733 名患者使用 SurvCART 算法进行聚类分析，然后进行 Kaplan-Meier 分析。

结果

该分析提供了 8 个子组的步骤图。可以计算 CEM 达到 0.8、0.9 和 0.95 灵敏度的持续时间。CEM 达到 0.8 灵敏度的持续时间在女性心力衰竭 (HF) 患者（亚组 1）中为 18 天，在男性心力衰竭患者（亚组 2）中为 24 天，在没有动脉闭塞和脉搏的非 HF 患者中为 22 天率 (PR) 大于 91（亚组 3），无心衰伴闭塞患者 24 天，PR 小于 91（亚组 4），无心衰且无闭塞伴腔隙患者 18 天（亚组 5），无闭塞患者 26 天心力衰竭、闭塞和腔隙，伴有动脉狭窄（第 6 亚组），无心衰、闭塞、腔隙和 BMI 超过 21% 的狭窄患者为 15 天（亚组 7），无心衰、闭塞、腔隙的患者为 44 天,

结论

灵敏度为 0.8、0.9 和 0.95 的 CEM 持续时间可根据是否存在 HF、女性、动脉闭塞、PR 超过 91/分钟、是否存在腔隙、是否存在狭窄以及 BMI 是否超过 21% 来确定。(250)