Takotsubo cardiomyopathy: Pathophysiology and role of cardiac biomarkers in differential diagnosis

Figure 1 Receiver operator characteristic analysis to distinguish acute myocardial infarction and takotsubo cardiomyopathy (Reproduced from Randhawa et al[38]; Permission requested). BNP: Brain natriuretic peptide; CKMB: Creatine kinase - MB fraction.

Figure 2 Receiver operating characteristic analysis for brain natriuretic peptide/ troponin I ratio to differentiate takotsubo cardiomyopathy from acute coronary syndrome in patients with (A) ST-segment elevation and (B) without ST-segment elevation (Reproduced from Doyen et al[39]; Permission requested).