Resumen

GONZALEZ MORENO, Juan Lázaro et al. Electrocardiography Diagnosis of the Left Ventricular Hypertrophy in hypertensive patients. Usefulness of the product of the duration of voltage of QRS. Rev haban cienc méd [online]. 2013, vol.12, n.3, pp. 454-463. ISSN 1729-519X.

Introduction: cardiovascular diseases cause the death of one out of three Cubans. High Blood Pressure and consequently Left Ventricular Hyperthrophty constitutes a prevalent risk factor able to trigger serious complications. Objective: to identify the behavior of the electrocardiographic approaches of Sokolow, Cornell and the Product of the Duration of Voltage of QRS in patients with Echocardiography Left Ventricular Hypertrophy. Material and Method: the sample coincides with the universe which consists of 76 patients suffering from High Blood Pressure and treated at the Consultation of Cardiology. The patients were surveyed about the presence of risk factors, body mass index and records of electrocardiogram and echocardiogram to confirm their left ventricular hypertrophy. Results: 61% of the patients had echocardiograph left ventricular hypertrophy. For the electrocardiographic indexes of Sokolow and Cornell the sensitivity was 26% and 24% respectively, both tests showed a specificity of 93%. The sensitivity for the Product of the Duration of Voltage for Sokolow reached 33% with a specificity of 97% while the Product of the Duration of Voltage for Cornell had a sensitivity of 35% and a specificity of 93%. Conclusions: ECG is essential in the diagnosis of Left Ventricular Hypertrophy, the Product of the Duration of Voltage for Cornell and the Product of the Duration of Voltage for Sokolow have a higher diagnostic sensitivity than isolated voltage indexes, the former is more useful in women with well defined epidemiological features.

Palabras clave : Left ventricular Hypertrophy; Product of the Duration of Voltage for Sokolow and Cornell indexes; diagnostic electrocardiographic.

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