Thyrotoxicosis can induce a transient left ventricular dysfunction resembling stress-induced cardiomyopathy that resolves completely with appropriate medical treatment.
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Rapid LV recovery in thyrotoxicosis-induced dysfunction may aid differential diagnosis; case evidence leaves open generalizability and need for prospective validation.
We report on a 44-year-old woman presenting with chest pain and dyspnoea without previous stress-related events. By means of echocardiography severe left ventricular dysfunction and wall motion abnormalities resembling stress-induced cardiomyopathy (Tako Tsubo) were seen. Laboratory investigation revealed thyrotoxicosis and elevated cardiac markers. Six days after starting medical treatment, complete restoration of the left ventricular function was observed. The transient left ventricular dysfunction was induced by thyrotoxicosis resembling stress-induced cardiomyopathy that resolved completely after medical treatment.
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E. Bird-Lake (2011) studied this question.
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