Key result
The interventricular septal curvature index measured by two-dimensional echocardiography correlated significantly with the ratio of right to left ventricular systolic pressure (r=0.71 to 0.83).
Why the study?
Does the interventricular septal curvature index measured by two-dimensional echocardiography accurately estimate right ventricular systolic pressure?
Cross-Sectional (n=106)
Single-blind
No
Does the interventricular septal curvature index measured by two-dimensional echocardiography accurately estimate right ventricular systolic pressure?
Two-dimensional echocardiography measurement of the interventricular septal curvature index provides a useful non-invasive method to assess right ventricular systolic pressure.
Supports non-invasive septal curvature assessment of RV pressure; leaves open prospective validation before clinical adoption.
To estimate the severity of right ventricular hypertension noninvasively, the two-dimensional echocardiograms of 86 patients were examined--26 patients with atrial septal defect (ASD group), 22 with rheumatic valvular heart disease (VHD group), 12 with primary pulmonary hypertension (PPH group) and 26 with tetralogy of Fallot (Fallot group)--and data were compared with those of 20 normal persons. The interventricular septal (IVS) curvature index (delta r) from short axis view correlated well with the ratio of right to left ventricular systolic pressure (RVP/LVP). When IVS became convex towards the right ventricular cavity, the correlative coefficient between delta r and RVP/LVP was r = 0.75 in the ASD group, r = 0.83 in the VHD group, r = 0.71 in the PPH group and r = 0.77 in the Fallot group. The RVP/LVP approached a plateau when IVS became straight or convex towards the left ventricular cavity. Two-dimensional echocardiography provides a useful means to assess the right ventricular systolic pressure non-invasively.
No takes yet. Share an insight, caveat, or question.
Kenichi Watanabe (1984) conducted a cross-sectional in Right ventricular hypertension (n=106). Two-dimensional echocardiography (interventricular septal curvature index) vs. Cardiac catheterization was evaluated on Correlation between interventricular septal curvature index and the ratio of right to left ventricular systolic pressure (p=<0.001). The interventricular septal curvature index measured by two-dimensional echocardiography correlated significantly with the ratio of right to left ventricular systolic pressure (r=0.71 to 0.83).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: