Comparison of right ventricular longitudinal strain imaging, tricuspid annular plane systolic excursion, and cardiac biomarkers for early diagnosis of cardiac involvement and risk stratification in primary systematic (AL) amyloidosis: a 5-year cohort study: reply.

We thank Dr Kostenberger for his interest in our work.1 We agree entirely that tricuspid annular plane excursion (TAPSE) and tricuspid annular peak systolic velocity (S') are essential for detailed evaluation of suspected dysfunction of the right ventricle (RV), including patients with cardiac amyloidosis, as detailed in our manuscript. We have previously demonstrated the utility of left …