The electrocardiographic pattern of right ventricular hypertrophy in pure mitral stenosis was associated with a total pulmonary resistance of ≥1000 dynes sec cm-5.
Observational (n=32)
Does the electrocardiographic pattern of right ventricular hypertrophy correlate with pulmonary resistance in patients with mitral valve disease?
The presence of a right ventricular hypertrophy pattern on ECG reliably indicates high pulmonary resistance in pure mitral stenosis, but its absence does not rule out severe pulmonary hypertension in mixed valvular disease.
The electrocardiograms in 32 patients with mitral valve disease have been compared with the pulmonary resistances, the pulmonary artery pressures, and the size of the mitral valve orifice. In patients with pure stenosis if the electrocardiogram showed the pattern of right ventricular hypertrophy the total pulmonary resistance was usually 1000 dynes seconds cm. –5 or greater. If mitral insufficiency and/or aortic valve lesions were present in addition to mitral stenosis the total pulmonary resistance often exceeded 1000 dynes seconds cm. –5 without right ventricular hypertrophy being evident in the electrocardiogram.
Scott et al. (Sun,) conducted a observational in Mitral valve disease (n=32). Electrocardiographic pattern of right ventricular hypertrophy vs. Absence of right ventricular hypertrophy pattern was evaluated on Total pulmonary resistance. The electrocardiographic pattern of right ventricular hypertrophy in pure mitral stenosis was associated with a total pulmonary resistance of ≥1000 dynes sec cm-5.