Transient left ventricular apical ballooning (TLVAB), or Takotsubo cardiomyopathy, is a poorly understood phenomenon that is thought to be related to a surge of catecholamines under stress conditions that causes microvascular dysfunction and a unique pattern of myocardial stunning. TLVAB occurs in two distinct patient populations: (i) community presentation similar to acute coronary syndrome and (ii) the critically ill. Understanding the differences in presentation, prognosis and management between these two groups may improve the outcome. We present a case of TLVAB developing in a Caucasian postmenopausal female who developed TLVAB suddenly on a background of chronic liver disease, malignancy, and recent ischemic stroke. The patient presented with hemodynamic collapse and was treated with inotropes, vasopressors, and supportive care until cardiac function improved. Additionally, we review the current literature describing the risk factors, pathophysiology, and treatment of TLVAB.
Case ReportA 58-year-old postmenopausal woman presented to the emergency department with a sudden onset of weakness associated with dyspnea, peripheral cyanosis, and bilateral lower extremity edema that progressed over one to two hours to include a decreased level of consciousness. In the emergency department, she was noted to be hypotensive and hypoxic. She was emergently intubated and admitted to the critical care unit. She has no significant medical history, but she reported a 25-pack-year history of smoking and drinks approximately 50 to 60 units of alcohol per week. Laboratory investigations revealed leukocytosis, thrombocytopenia, and evidence of chronic liver disease. Toxicology screen was negative for cocaine. EKG on admission was significant only for sinus tachycardia and QT prolongation. During the course of two days, the patient developed mild ST segment elevation in V 1 and T-wave inversions in leads avL, I, and V 1 . No pathological Q waves were noted. Imaging revealed no acute intracranial hemorrhage; however, changes consistent with recent ischemic stroke were present. Additional imaging demonstrated the presence of abdominal ascites, anasarca, and a right sided pleural effusion with left upper lobe mass suspicious for malignancy. Transthoracic echocardiography demonstrated akinetic apex, hypokinetic mid-left ventricular, and hyperkinetic basal left ventricular segments (Figure 1). Left ventricular ejection fraction was 20-25% and moderate mitral regurgitation with concomitant left atrial enlargement was noted. Cardiac enzyme peak levels were measured with a troponin of 4.92 and CK-MB of 18 (17.5% of total CPK). Biopsy of the lung masses revealed malignancy. During the acute phase of her presentation, the patient received norepinephrine and dobutamine to augment cardiac output until her TLVAB resolved.
Definition and EpidemiologyTakotsubo cardiomyopathy was originally described by Dote et al. in the early 1990s [1]. Takotsubo cardiomyopathy