Sentence examples for j point from inspiring English sources
The STJ/ST80 ratio (ST segment elevation at J point/ST segment at 80 ms after the J point) may help in differentiating early repolarization from Brugada syndrome in athletes [ 50].
Elevated ST height at J point (STJ) in leads V3, II, and aVF and ST height at 60 ms after the J point (ST60) were "protective" from sudden cardiac death in the combined cohorts of the ARIC study and CHS (cardiovascular health study) [ 1].
The electrocardiographic analysis focused on the ST-segment elevation at J point (STJ) and at 80 milliseconds after J point (ST80).
Body-surface potential mapping distributions at J point for 352 nodes were estimated from the 12-lead ECG, and an agreement with those estimated from 120 leads was assessed by a correlation coefficient (CC) (in percent).
ST deviations were measured 60 ms after the J point at baseline and peak in all leads and were summated (SUMST) to assess overall changes.
The ST amplitude 3/8 was obtained by dividing the interval between ST-J point and the end of the T wave into eight parts of equal duration.
Notching (10% vs 2%, p = 0.1) and J-point elevation (16% vs 0%) were more common in cases.
The J-point amplitude was measured on the baseline 12-lead surface electrocardiogram and the intracardiac far-field electrogram.
The relative J-point amplitude was calculated as the ratio of J-point amplitude to peak-to-peak R-wave.The paired t test showed that the relative intracardiac J-point amplitude was significantly higher before polymorphic ventricular tachycardia/ventricular fibrillation (VF) onset (0.28 ± 0.08 vs -0.19 ± 0.39; P =.012) than at baseline.
J-wave syndromes have emerged conceptually to encompass the pleiotropic expression of J-point abnormalities including Brugada syndrome (BrS) and early repolarization syndrome (ERS).
