Prediction of Pulmonary Arterial Hypertension in XXXX from Three-Dimensional Vectorcardiographic Parameters.

@entity1 @entity20576 @entity120 @entity8158 @entity1030
AIM: The objective of our study was to assess diagnostic value of three-dimensional (3D) vectorcardiographic (VCG) parameters in detecting @entity120 ( @entity120 ) in @entity1030 ( @entity1030 ) with and without @entity8158 ( @entity8158 ). METHODS: The study group of 62 @entity1 with @entity1030 was stratified on the basis of color Doppler echocardiographic findings into three subgroups: non- @entity120 (n = 23), @entity120 without @entity8158 (n = 22), and @entity120 with @entity8158 (n = 17). Pairwise differences between the subgroups were evaluated by one-way analysis of variance, and Pearson correlation analysis was used to evaluate the significance of the correlations between pulmonary arterial systolic pressure (PASP) and various VCG parameters. RESULTS: The azimuth of the QRS vector decreased from -24   in the non- @entity120 group to -62   in @entity120 without @entity8158 and to -140   in @entity120 with @entity8158 (P < 0.01 for pairwise differences between all three groups). Similar significant decrease was observed for the azimuth of the ventricular gradient (VG) vector. Spatial QRS/ @entity20576 increased from 69   in the non- @entity120 group to 115   in @entity120 without @entity8158 (P < 0.01). In the @entity120 group with @entity8158 , QRS/ @entity20576 was 94   (P < 0.05 for difference from the non- @entity120 group). There was a significant correlation between PASP and QRS/ @entity20576 (r = 0.89, P < 0.05) and between PASP and the azimuth of the VG vector (r = 0.86, P < 0.05). PASP increase from linear regression model was 0.8 mmHg for a QRS/ @entity20576 increase by 10   and 1.3 mmHg for each 10   increase in the azimuth of the VG vector. CONCLUSION: 3DVCG parameters are potentially useful for predicting PASP in @entity1030 @entity1 , and possibly also for differentiation between @entity1030 @entity1 with @entity120 and @entity8158 from those without @entity8158 .
