“…Yabuuchi et al [4] reported a patient with takotsubo cardiomyopathy who developed cardiogenic shock resistant to an intravenous administration of catecholamine and who needed a mechanical support with intra-aortic balloon pumping. In this patient, the administration of catecholamine may have enhanced the dynamic mid-ventricular obstruction, leading to prolonged cardiogenic shock, although the IVPG was not described in this paper.…”