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  • Title: [The P-wave in systemic arterial hypertension].
    Author: Sánchez Torres G, González Pliego JA, Medrano GA.
    Journal: Arch Inst Cardiol Mex; 1986; 56(5):391-7. PubMed ID: 2948453.
    Abstract:
    An abnormal electrocardiographic P wave (AEPW) has been interpreted as indicative of heart failure, hypertrophy or dilatation of left atrium, or diminished left ventricular compliance. In order to determine the significance of this electrocardiographic sign we studied 47 cases of systemic arterial hypertension (SAH) without heart failure or coronary obstruction. Patients were assigned at 2 groups: group A (22 cases with P wave duration greater than 0.11 seg. (LEAD D2); and group B 25 cases with P wave duration less than this. The following data were studied in all cases: left ventricular ejection fraction (LVEF), left ventricular presystolic filling fraction (LVPFF), Sokoloff electrocardiographic index (SEI), final diastolic pressure of LV (FDPLV), and systolic arterial pressure (SAP). Results were: (Table: see text). There were not statistical differences in these values between groups A and B (including the FDPLV value not shown in the table). Correlation coefficient between duration of P wave and the other parameters studied were also no significant. AEPW in SAH is not related to an specifically degree of left ventricular hypertrophy or disfunction; therefore, hypertensive heart disease should not be classified taking in account this electrocardiographic sign.
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