Exercise-Induced ST Elevation in Patients With Non-Ischemic Dilated Cardiomyopathy and Narrow QRS Complexes

Predictive value of electrocardiographic markers in children with dilated cardiomyopathy

“…Chen et al ( 46 ) conducted a survival analysis of 137 children with DCM (aged 7.8 ± 6.7 years) and showed that 2 of the 15 children with fatal arrhythmia evens had ST-segment depression (depression >1 mV in two consecutive leads), 6 of 122 children without fatal arrhythmia had ST segment depression, demonstrating that ST segment depression is a risk factor for fatal arrhythmia evens ( P < 0.05). Takahama et al ( 54 ) analyzed 12-lead ECG in cardiopulmonary exercise testing in 360 patients with non-ischemic DCM and discovered that the event-free survival rates for major cardiac events in patients with or without exercise-induced ST-segment elevation (ESTE) were 61 and 88%, respectively, after 48 months follow-up, indicating that ESTE was the strongest independent prognostic indicator among exercise parameters ( P < 0.05), possibly reflecting the pathophysiological process of worsening HF. ESTE is an emerging parameter that has a good predictive value for exercise tolerance in patients with DCM, but the current study is not specific to pediatrics, and further large-sample studies are needed to confirm its predictive effect.…”

Slope in preload recruitable stroke work relationship predicts survival after left ventriculoplasty and mitral repair in patients with idiopathic cardiomyopathy

“…From our experience, we believe this operation has a role in selected patients. Although strict patient selection is important for these controversial procedures, we do not have any reliable LV functional parameters for the prediction of responders to LVP and MVP that we can easily use in clinical practice [17].…”