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For Patients at Risk, a Simple Blood Test Can Help Doctors Predict Likelihood of Future Heart Attack, Other Cardiac Events, and Death

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For Patients at Risk, a Simple Blood Test Can Help Doctors Predict Likelihood of Future Heart Attack, Other Cardiac Events, and Death
  • Siemens Healthineers has introduced the Atellica IM High-Sensitivity Troponin I test, which not only diagnoses acute myocardial infarction (AMI) but also predicts the risk of future heart attacks and cardiac events, enabling personalized treatment plans to improve patient care.
  • The Atellica IM High-Sensitivity Troponin I assay utilizes a three-site sandwich immunoassay with chemiluminescent technology to accurately measure troponin levels, providing quick results and reliability across different patient demographics with minimal interference from common substances.
  • Incorporating the Atellica IM test into clinical practice can lead to early detection and intervention, risk stratification, and reduced hospital stays by promptly ruling out AMI in low-risk patients and tailoring care based on predictive capabilities.

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A Simple yet Powerful Tool in the Fight Against Heart Disease

In a groundbreaking development, Siemens Healthineers has announced a new prognosis claim for its Atellica IM High-Sensitivity Troponin I (TnIH) test. This innovative assay is designed to not only diagnose acute myocardial infarction (AMI) but also predict the likelihood of future heart attacks and other cardiac events. This breakthrough could significantly enhance patient care by providing doctors with critical information to tailor treatment plans and reduce the risk of adverse outcomes.

The Importance of High-Sensitivity Troponin

High-sensitivity troponin (hs-cTn) assays have revolutionized the diagnosis of heart attacks. Unlike traditional troponin tests, which detect elevated levels of cardiac troponin, high-sensitivity assays can detect even slight increases in troponin levels. This sensitivity is crucial because early detection of heart attack symptoms can lead to quicker intervention and improved patient outcomes.

How Does the Atellica IM High-Sensitivity Troponin I Test Work?

The Atellica IM High-Sensitivity Troponin I assay is a three-site sandwich immunoassay that uses direct chemiluminescent technology to measure cardiac troponin I in human serum or plasma. This test is specifically designed to aid in the diagnosis of AMI by detecting minute changes in troponin levels, which are indicative of cardiac damage. The assay's performance is exceptional, with reports indicating minimal interference from common substances like biotin and hemolysis, ensuring accurate results even in challenging samples.

The Prognostic Risk Claim: A Major Breakthrough

The new prognosis claim for the Atellica IM High-Sensitivity Troponin I test allows healthcare providers to not only diagnose current AMI but also predict the likelihood of future cardiac events. This predictive capability is based on the assay's ability to measure troponin levels over time, providing a clearer picture of the patient's cardiac health. The test can identify patients at high risk for major adverse cardiac events (MACE) at various time points post-ED visit, enabling clinicians to create tailored care plans that reduce the risk of future heart attacks and other cardiac complications.

Practical Applications in Clinical Settings

In clinical practice, the Atellica IM High-Sensitivity Troponin I assay offers several practical advantages:

  • Quick Results: The test provides STAT results in just 10 minutes, allowing healthcare providers to make timely decisions without interrupting routine workflows.
  • Accuracy Across Cohorts: The assay meets the IFCC definition of a high-sensitivity assay in both male and female cohorts, ensuring reliable results regardless of patient demographics.
  • Minimal Interference: The test is designed to mitigate common interferents such as biotin, hemolysis, and auto-antibodies, ensuring accurate measurements even in challenging samples.

Real-World Performance Evaluation

Performance evaluation studies have consistently shown the analytical performance of the Atellica IM High-Sensitivity Troponin I assay to be excellent. A recent study evaluated the assay's performance on the Atellica IM analyzer and compared it with other high-sensitivity troponin assays. The results demonstrated good correlations between the Atellica IM analyzer and other systems, with minor deviations observed in some cases. The study also noted that all results in healthy volunteers fell below the 99th percentile upper reference limit (URL), and greater than 50% of each sex demonstrated values above the limit of detection (LoD). No interference was observed for biotin (≤ 1500 µg/L), but slight biases were noted at higher concentrations of hemoglobin and troponin.

Practical Implications for Patient Care

The integration of the Atellica IM High-Sensitivity Troponin I assay into routine clinical practice could have significant implications for patient care:

  • Early Detection and Intervention: Quick and accurate detection of AMI allows for early intervention, potentially reducing the severity of cardiac damage and improving patient outcomes.
  • Risk Stratification: The predictive capability of the test enables clinicians to identify patients at high risk for future cardiac events, allowing for targeted preventive measures and tailored care plans.
  • Reduced Hospital Stays: By rapidly ruling out AMI in low-risk patients, the test could help reduce unnecessary hospital admissions and expedite outpatient management, leading to shorter lengths of hospital stay and fewer unnecessary cardiac procedures.

Conclusion

The introduction of the new prognosis claim for the Siemens Healthineers Atellica IM High-Sensitivity Troponin I test marks a significant milestone in the fight against heart disease. This innovative assay not only enhances the diagnosis of AMI but also provides critical information for predicting future cardiac events. By integrating this test into clinical practice, healthcare providers can offer more comprehensive and personalized care, potentially reducing the risk of adverse outcomes and improving patient outcomes.


References Siemens Healthineers. High-Sensitivity Troponin I Assay. [Online]. Available at: https://www.siemens-healthineers.com/laboratory-diagnostics/assays-by-diseases-conditions/cardiac-assays/high-sensitivity-troponin-i-assays Siemens Healthineers. High-Sensitivity Troponin I (TnIH) Atellica IM Analyzer. [Online]. Available at: https://doclib.siemens-healthineers.com/rest/v1/view?document-id877888 Buño Soto, A., et al. Performance evaluation of the high sensitive troponin I assay on the Atellica IM analyser. PMC9195607. [Online]. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9195607/ Siemens Healthineers. Cardiac High-Sensitivity Troponin - Siemens Healthineers USA. [Online]. Available at: https://www.siemens-healthineers.com/en-us/laboratory-diagnostics/assays-by-diseases-conditions/cardiac-assays/high-sensitivity-troponin-i