Rate-dependent changes in atrial action potential duration after short-duration rapid atrial pacing in humans

被引：4

作者：

Watanabe, I ^{[1
]}

Masaki, R ^{[1
]}

Ohkubo, K ^{[1
]}

Okumura, Y ^{[1
]}

Yamada, T ^{[1
]}

Oshikawa, N ^{[1
]}

Saito, S ^{[1
]}

Ozawa, Y ^{[1
]}

Kanmatsuse, K ^{[1
]}

机构：

[1] Nihon Univ, Sch Med, Dept Med 2, Itabashi Ku, Tokyo 1738610, Japan

来源：

CIRCULATION JOURNAL | 2002年 / 66卷 / 09期

关键词：

atrial fibrillation; electrical remodeling; monophasic action potential;

D O I：

10.1253/circj.66.874

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

The effect of rapid atrial pacing on the rate adaptation of the atrial action potential duration was studied in humans. The right atrial monophasic action potential (RAMAP) of 5 patients was recorded before and after 30min of rapid atria] pacing. The pacing cycle length (CL) was 146 9ms, the shortest duration at which 1:1 capture was possible. The RAMAP duration at 90% repolarization (RMAPD) was measured. CL-dependent changes in RAMAPD (CL 600 ms-CL 300 ms) before and after rapid atrial pacing were 51.8 +/- 10.7 ms and 30.8 +/- 7.6 ms (p<0.05), respectively.

引用

页码：874 / 875

页数：2

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