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目的 测定高血压伴左心室肥厚的QT离散度 ,研究左心室肥厚病人QT离散度的变化及与左心室肥厚的关系。方法 选择高血压伴左心室肥厚者 45例 ,高血压不伴左心室肥厚者 40例 ,健康人 40例 ,测定QT离散度。结果 ①高血压伴左心室肥厚患者的QT离散度高于高血压不伴左心室肥厚组和健康组 (6 0 .5 6± 13 .15 ,45 .2 4± 11.0 9,38.18± 9.2 8,P <0 .0 1)。②高血压不伴左心室肥厚组QT离散度高于健康者 (4 5 .2 4± 11.0 9,38.14± 9.2 8,P <0 .0 5 )。结论 高血压伴左心室肥厚者QT离散度明显增高。
Objective To determine the QT dispersion of hypertensive patients with left ventricular hypertrophy and to study the relationship between QT dispersion and left ventricular hypertrophy in patients with left ventricular hypertrophy. Methods Forty-five hypertensive patients with left ventricular hypertrophy, 40 hypertensive patients without left ventricular hypertrophy, and 40 healthy individuals were enrolled in this study. QT dispersion was measured. Results ① The QT dispersion in hypertensive patients with left ventricular hypertrophy was higher than that in hypertensive patients without left ventricular hypertrophy and in healthy subjects (60.56 ± 13.15, 45.24 ± 11.0 9, 38.18 ± 9.28, P <0 .0 1). ② QT dispersion in patients with hypertension without left ventricular hypertrophy was higher than that in healthy people (45.24 ± 11.0 9, 38.14 ± 9.2 8, P <0.05). Conclusions QT dispersion in hypertensive patients with left ventricular hypertrophy was significantly higher.