Key result
Gen6 hs-cTnT 0/1-hour algorithm matches Gen5 accuracy while raising rule-out rate by ~7 percentage points.
Why the study?
The newly developed 6th-generation hs-cTnT (Gen6) assay provides improved analytical precision at low troponin concentrations with revised algorithm cutoffs, requiring evaluation of its diagnostic performance in an Asian cohort.
Does the 6th-generation hs-cTnT (Gen6) 0/1-hour algorithm improve diagnostic performance and triage for Type 1 myocardial infarction compared to the 5th-generation hs-cTnT (Gen5) in an Asian cohort presenting with chest pain?
Cohort (n=755)
Does the 6th-generation hs-cTnT (Gen6) 0/1-hour algorithm improve diagnostic performance and triage for Type 1 myocardial infarction compared to the 5th-generation hs-cTnT (Gen5) in an Asian cohort presenting with chest pain?
The 6th-generation hs-cTnT assay demonstrates comparable overall diagnostic accuracy to the 5th-generation assay while improving the rule-out rate and rule-in positive predictive value for patients presenting with chest pain in an Asian cohort.
Answers are grounded in this paper and cite their sources.
Supports ESC 0/1-hour algorithm safety with sixth-generation hs-cTnT in Asian patients; leaves open prospective validation before wider adoption.
Background] The European Society of Cardiology (ESC) 0/1-hour algorithm using the 5th-generation hs-cTnT (Gen5) is widely used for risk stratification of patients presenting with chest pain.The newly developed hs-cTnT (Gen6) provides improved analytical precision at low troponin concentrations with revised algorithm cutoffs.We evaluated the diagnostic performance of Gen6 in an Asian cohort.[Methods] We retrospectively studied 755 patients with chest pain, including 119 with Type 1 myocardial infarction (MI); patients with non-cardiac chest pain served as controls.Paired area under the curve (AUC) and 0/1-hour algorithm with assay-specific cutoffs were compared.[Results] AUC was 0.966 for Gen5 and 0.958 for Gen6.Gen6 achieved a rule-out negative predictive value of 99.6% and sensitivity of 98.3%, meeting ESC safety criteria.Gen6 increased the rule-out rate by 6.5% and rule-in positive predictive value by 1.7%.[Conclusions] Gen6 demonstrated comparable performance to Gen5 with improved rule-out rate and rule-in PPV, suggesting potential to optimize triage.
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A 2026 study conducted a cohort in Chest pain / Type 1 myocardial infarction (n=755). 6th-generation hs-cTnT (Gen6) ESC 0/1-hour algorithm vs. 5th-generation hs-cTnT (Gen5) ESC 0/1-hour algorithm was evaluated on Diagnostic performance for Type 1 myocardial infarction (AUC and rule-out negative predictive value). The Gen6 hs-cTnT 0/1-hour algorithm achieved comparable diagnostic performance to Gen5 (AUC 0.958 vs 0.966; rule-out NPV 99.6%) while increasing rule-out rate by 6.5%.
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