Atypical haemolytic uraemic syndrome: a case report of a rare cause of reversible cardiomyopathy.

In this report, we describe complete recovery of aHUS-associated heart failure with eculizumab therapy and demonstrate for the first time that the aetiology of aHUS-associated heart failure is likely an acute thrombotic microangiopathy involving small intramyocardial arterioles, as demonstrated by cardiac biopsy.