TNNT2 and Paroxysmal supraventricular tachycardia: In addition, there were multiple atrial cardiopathy biomarkers, such as prolongation of the PR interval (29), prolonged P-wave durations (30), paroxysmal supraventricular tachycardia (PSVT) (31), and cardiac troponin (cTnT) (25), may be associated with the prognosis of ESUS patients, and more studies are needed to verify their relationship.