A multicentre analysis of troponin use in clinical practice

J D Groarke1, L Browne, R Margey

  • 1Department of Cardiology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland. johngroarke1@eircom.net

Insights

Troponin testing volume increased annually without more emergency department patients, suggesting overuse. This trend incurs significant costs, necessitating improved patient selection and testing protocols, especially with new high-sensitivity assays.

Area of Science:

  • Clinical Chemistry
  • Health Economics
  • Cardiology

Background:

  • Troponin quantification is vital for diagnosing acute coronary syndrome but presents cost challenges.
  • Advancements in high-sensitivity troponin and multi-marker assays introduce further resource considerations.

Purpose of the Study:

  • To analyze recent trends in troponin assay usage and associated costs across multiple hospitals.
  • To investigate the relationship between troponin testing volumes and patient presentation rates.

Main Methods:

  • A cross-sectional survey was conducted across six tertiary teaching hospitals.
  • Data on troponin usage and costs were collected for consecutive years from 2003 to 2009.

Main Results:

  • A median annual increase in troponin assay requests (average 6.9%) was observed in all hospitals.
  • This increase was not linked to a rise in emergency department (ED) patient volume for chest pain.
  • A significant portion of troponin assays (91%) in one center yielded normal results, indicating potential overuse.

Conclusions:

  • Rising troponin test requests without increased patient activity suggest potential indiscriminate testing.
  • The costs associated with inappropriate troponin testing are substantial.
  • Strategies are needed to refine patient selection and testing protocols, particularly with emerging high-sensitivity troponin assays.
Abstract

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