Studies on the Right Artial Pressure : Dimension Relarons in Patients with Various Heart Disease Iso-dimentional Contraction and Right Artial Work in Atrial Systole

To analyze thr right atrial (RA) function in patients (PTS) with heart disease, both atrial echograms with an esophageal echocardiography and RA pressure by a catheter-tip manometer were recorded sim-ultaneouesly in 20 pts in regular sinus rhythm (control 5, constrictive pericarditis (CPC) 2, congestive 6). RA pressure (P)-dimension (D) curves were composed. Five phase of the instantaneous RA dimensional changes could be identified and the active shortening of RA always followed the systolic rise in RA-P (isodimensional contraction (IC)). IC time was inversely correlated to RA-D at the preatrial contraction (Da) (r = -0.61, p<0.01),…