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.
Background:
The role of troponin quantification in evaluation of patients with suspected acute coronary syndrome is established, but with cost implications. Emerging high-sensitivity troponin and novel multi-marker assays herald further resource implications.
Aims:
The objective of this study was to quantify recent trends in troponin usage and costs in a cross-section of hospitals.
Methods:
A cross-sectional survey seeking data on troponin usage and costs from six tertiary referral, public access teaching hospitals for consecutive years between 2003 and 2009 was carried out.
Results:
A median annual increase in the volume of troponin assays requested was identified in all six hospitals, with an average median annual increase of 6.9 % across hospitals (interquartile range 3.4, 10.1 %). This annual increase was not accompanied by a corresponding increase in volume of patients presenting to the Emergency Department (ED) with chest pain. The majority (44-67 %) of troponin requests originated in the ED of hospitals. The median annual spend on troponins per hospital was
Conclusions:
An annual increase in troponin requests without a corresponding increase in patient activity raises the possibility of increasingly indiscriminate troponin testing. The cumulative direct and indirect costs of inappropriate testing are significant. Corrective strategies are necessary to improve patient selection and testing protocols, particularly in the advent of the high-sensitivity troponin assays and novel multi-marker strategies.
Related Concept Videos
Acute Coronary Syndrome III: Diagnostic Studies
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
Clinical Trials
There are four phases in a clinical trial. A phase one...
Hypertension III: Clinical Manifestations and Diagnostic Studies
Therapeutic Drug Monitoring: Drug Analysis Methods
Clinical Trials: Overview
