抄録
<jats:p>T Wave Alternans in LQTS. T wave alternans that is visually apparent on the ECG is a known risk factor for sudden death in idiopathic long QT syndrome (LQTS). To determine if occult and visually undetectable forms of T wave alternans are also present in LQTS, we measured T wave alternans from a 16‐year‐old girl with LQTS during exercise using spectral analysis methods and a recording system designed to minimize exercise‐related noise. While there was no alternans at rest, statistically significant, yet visually inapparent T wave alternans were measured both during exercise and recovery. Using identical recording techniques, no significant T wave alternans was detected from the subject's mother, who had a prolonged QT interval but was not experiencing arrhythmias, nor from five healthy volunteers with normal QT intervals. This report suggests that electrocardiographically occult, yet prognostically important forms of T wave alternans may be present in patients with LQTS.</jats:p>
収録刊行物
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- Journal of Cardiovascular Electrophysiology
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Journal of Cardiovascular Electrophysiology 7 (2), 144-148, 1996-02
Wiley
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詳細情報 詳細情報について
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- CRID
- 1363388843825242112
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- NII論文ID
- 30027641571
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- ISSN
- 15408167
- 10453873
- http://id.crossref.org/issn/10453873
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- データソース種別
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- Crossref
- CiNii Articles