PMID: 1190902Sep 1, 1975Paper

[QRS in mitral stenosis: Electrohemodynamic correlation].

Archivos del Instituto de Cardiología de México
F Picó AracilJ A Ruipérez Abizanda

Abstract

The electrocardiograms of 50 patients with mitral stenosis in sinus rhythm were reviewed (axis of QRS and T in the frontal and horizontal planes, with each one of their modules, Lewis index and right Sokolow-Lyon, quotient R/R + S in V1, time of beginning of the intrinsecoide deflection of QRS), they were related with the hemodynamic data; and the existence of clear relations between both methods of exploration were confirmed. 1. The QRS axis in the frontal plane kept a good relation with the hemodynamic data (mainly thzontal axis there proved to be a closer relation than in this one. 2. The quotient R/R + S in V1 was the parameter that best correlated with the mean pressure of the pulmonary artery and with the pulmonar capillary pressure. 3. Although the right Sokolow-Lyon index is not a definite criterion for recognizing a right ventricular hypertrophy; it is very useful in correlating the total pulmonary resistances with the mean pulmonary arterial pressure, even if it did not reach pathologic values. The same can be said the Lewis index, although the dependence is less important. 4. The horizontalization of the frontal axis of T becomes more important with the increase in the hemodynamic repercution. 5. As an expression of ...Continue Reading

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