Prognostic implications of troponin I elevation in emergency department patients with tachyarrhythmia.

Background: Tachyarrhythmias are very common in emergency medicine, and little is known about the long-term prognostic implications of troponin I levels in these patients.

Hypothesis: This study aimed to investigate the correlation of cardiac troponin I (cTnI) levels and long-term prognosis in patients admitted to the emergency department (ED) with a primary diagnosis of tachyarrhythmia.

Methods: A retrospective cohort study was conducted between January 2012 and December 2013, enrolling patients admitted to the ED with a primary diagnosis of tachyarrhythmia and having documented cTnI measurements.

Clinical Features and Prognosis of Patients with Acute and Chronic Myocardial Injury Admitted to the Emergency Department.

Background: This study aimed to investigate the clinical features and prognosis of acute and chronic myocardial injury without clinical evidence of myocardial infarction in patients admitted to the emergency department.

Methods: We analyzed the clinical data of all consecutive patients admitted to the emergency department during the years 2012 and 2013 who had at least 2 determinations of troponin I (TnI Ultra Siemens, Advia Centaur) and without a diagnosis of myocardial infarction. Clinical events were evaluated in a 3-year follow-up.