Establishing the Incidence of Tako-tsubo Cardiomyopathy in Scotland

Public Health Scotland will identify all patients centrally coded under codes I42.8 (Other cardiomyopathies), I42.9 (Cardiomyopathy, unspecified) and I51.8 (Other ill-defined heart diseases), using the Community Health Index (CHI) numbers from January 2010. All identified CHI numbers will be thereafter cross-checked with their clinical data at participating health boards to confirm a diagnosis of takotsubo cardiomyopathy and a registry of all confirmed Takotsubo cases will be established. Clinical data will be collected for all Takotsubo patients retrospectively and prospectively. This will be compared to two contemporaneous gender and age matched control populations: 1. a cohort of randomly selected individuals from the Scottish general population supplied by Public Health Scotland 2. patients with myocardial infarction (extracted through collaboration with, the High-STEACS investigators, NCT01852123). Electronic data linkage will be performed by Public Health Scotland to assess outcomes, prescribing and scores of prediction.