Stress-induced cardiomyopathy, also known as Takotsubo cardiomyopathy (TCMP) is characterized by a rapid, severe and usually reversible ventricular wall dysfunction, ST segment changes on EKG and troponin leak without evidence of obstructive coronary artery disease by coronary angiography. It represents approximately 1.2% of all troponin positive acute coronary syndromes [1]. Physical or emotional stressors have been identified as triggers precipitating this syndrome in the majority of the cases.Classification of TCMP is based on the distribution of wall motion abnormalities noted on Echocardiogram. Study of International Takotsubo Registry (1750 patients) identified 4 types of TCMP, apical (81.7%), midventricular (14.6%), basal/reverse (2.2%) and focal type (1.5%) [2]. These patterns of myocardial dysfunction are reminiscent of myocardial stunning associated with an increased catecholamine release. It has been hypothesized that the distribution of adrenergic receptors in myocardial tissue explains the difference in anatomical distribution of injury [3]. Here we present a case of a middle-aged female patient who developed acute severe heart failure caused by reverse TCMP following a cervical steroid injection.With this case report, we intend to highlight the possible association between epidural steroid injection and development of TCMP. We also emphasize the high clinical suspicion required to diagnose TCM in patients who present with acute coronary syndrome, heart failure, specific pattern of wall motion abnormalities and angiographically normal coronaries. We further illustrate the utility of cardiac MRI as a non-invasive study with increased sensitivity over other imaging modalities in diagnosing TCM.
Case PresentationA highly functional middle-aged postmenopausal female with remote history of depression, cervical canal stenosis and no other significant medical history presented to the emergency room after awakening around midnight with severe headache, diaphoresis, palpitations, shortness of breath, nausea, vomiting and diarrhea. The patient was severely hypertensive upon presentation. At presentation she had severely elevated blood pressure (BP 220/150mm Hg), was diaphoretic and complained of severe sub sternal non-radiating chest pain. Physical examination revealed regular rhythm, with a heart rate of 122 beats per minute, mild respiratory distress and she was afebrile. Her jugular venous pressure was not elevated and no carotid bruits were present. Cardiac auscultation revealed normal first and second heart sounds with a 2/6 holosystolic murmur at the apex radiating to axilla. Her peripheral pulses were equal in all extremities. Lung fields were clear. She denied any acute stressors. Patient reported cervical spinal pain for which she had received a cervical steroid injection several hours before presentation.
InvestigationsDue to her complains of chest pain, a stat electrocardiogram (EKG) was obtained. Initial EKG showed fascicular ventricular tachycardia with HR of 148 beats per minute, which s...