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KMID : 0374019950180010001
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Ewha Medical Journal
1995 Volume.18 No. 1 p.1 ~ p.6
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Relation of ECG Abnormalities and Echocardiographically Detected left Venticular Hypertrophy in Patients with Essential Hpertension
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Abstract
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Background:
@EN left ventricular hypertrophy(LVH) is an important prognostic factor in essential hypertension. But the method of diagnosis of LVH by electrocardiography has limitations.
In this study, we compaed the sensitivity of the total 12-lead QRS amplitude with the sensitivity of certain standard electrocardiographic criteria for left ventriculart hypertrophy in patients with essential hypertension.
@ES Materials & Method:
@EN A total of 50 hypertensive patients and 50 normal adults were studied. For diagnosis of left ventricular hypertrophy by electrocardiography, we use Sokolow and Lyon index, the ratio of RV6: RV5 and a method suing the taotal QRS complex
voltage
of
standard 12-leads. By echocardiography, we calculated left ventricular mass index.
@ES Results:
@EN The total QRS voltage ranged from 127mm to 332 mm(mean:205±51mm) in hypertensives, 86mm to 308mm(mean:149±42mm) in nonmal group. Using 175mm as the upper limit of normal, this method gave a sensitivity of 80% show reasonable sensitivity of
any
criteria tested. The Sokolow-Lyon index gave a sensitivity of 45%, the RV6/RV5 ratio gave only 10% of sensitivity.
@ES Conclusion:
@EN total 12-lead QRS voltage more than 175mm is a useful indicator of left ventricular hypertrophy in patients with essential hypertension.
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KEYWORD
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