在左束支起搏导联植入过程中，左束支损伤电流逐渐发展。

IF 1.7 4区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS Pace-Pacing and Clinical Electrophysiology Pub Date : 2024-10-01 Epub Date: 2024-05-06 DOI:10.1111/pace.14996

Yoji Iida, Junzo Inamura

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引用次数: 0

摘要

左束支（LBB）电位或 LBB 损伤电流（COI）增大表明 LBB 起搏的 LBB 捕获阈值较低。一位 85 岁的妇女在进行 LBB 起搏时，达到低 LBB 捕获阈值最初并没有出现较大的 LBB 电位或 LBB COI，而是心室电图出现了新的初始负偏转。此后 7 分钟，LBB COI 逐渐发展，这表明导联尖端已到达左心室心内膜下。因此，这种负偏转可能是避免导联进一步旋转的第一个信号。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Gradual development of left bundle branch current of injury during left bundle branch pacing lead implantation.

A larger left bundle branch (LBB) potential or LBB current of injury (COI) indicates a low LBB capture threshold in LBB pacing. During LBB pacing in an 85-year-old woman, achieving a low LBB capture threshold did not initially present with a larger LBB potential or LBB COI, but rather with a new initial negative deflection in a ventricular electrogram. LBB COI gradually developed over 7 min thereafter, which suggested that the lead tip had reached the left ventricular subendocardium. Therefore, this negative deflection may be the first sign to avoid further lead rotation.

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来源期刊

Pace-Pacing and Clinical Electrophysiology 医学-工程：生物医学

CiteScore

2.70

自引率

5.60%

发文量

209

审稿时长

2-4 weeks

期刊介绍： Pacing and Clinical Electrophysiology (PACE) is the foremost peer-reviewed journal in the field of pacing and implantable cardioversion defibrillation, publishing over 50% of all English language articles in its field, featuring original, review, and didactic papers, and case reports related to daily practice. Articles also include editorials, book reviews, Musings on humane topics relevant to medical practice, electrophysiology (EP) rounds, device rounds, and information concerning the quality of devices used in the practice of the specialty.

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