Takotsubo Caused by Pulmonary Embolism

 

Abstract

Takotsubo is a transient acute coronary myocardial infarction due to a catecholaminergic discharge accounting for 1 in 36,000 adults after intense physical or psychological stress. Most often found in women over 50 years of age. Its association with pulmonary embolism is very rare.

With this in mind, we report the case of a 76-year-old female patient with poorly followed chronic obstructive pulmonary disease (COPD). She presented to the emergency department with acute respiratory distress and lipothymia. Clinical examination revealed hypoxia with SaPO2 at 86% in free air, blood pressure at 120/80mmHg, tachycardia at 112 beats/min. The electrocardiogram showed S1Q3, hyper-right axial deviation, complete right bundle branch block with fragmented QRS, positive AVR with a tachycardia of 125 beats/min. A thoracic angioscan was performed, showing a bilateral pulmonary embolism of segmental and sub-segmental level. Ultrasensitive troponins were highly elevated at 1530ng/l with transthoracic echocardiography showing signs of acute pulmonary heart disease associated with apical ballooning, very akinetic with hyperkinesia of the bases, LVEF 26% suggestive of takotsubo confirmed by coronary angiography coupled with ventriculography giving an amphora-like appearance with a healthy coronary. The patient was initially admitted to the intensive care unit and then to the hospital for an intermediate-high risk pulmonary embolism complicated by takotsubo. The etiological work-up of the pulmonary embolism was normal. She received apixaban, Ramipril and bisoprolol. The evolution was marked by a recovery of the bi ventricular function with an LVEF of 58% in 1 month.

Takotsubo was secondary to respiratory failure caused by pulmonary embolism through catecholaminergic discharge resulting in a redistribution of beta receptors in the myocardium.

 

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