Short- and long-term prognostic value of the TIMI risk score after primary percutaneous coronary intervention for
Peter Damman1, Pier Woudstra, Wichert J Kuijt
1Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Insights
The TIMI risk score effectively predicts mortality in ST-elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PPCI) in both the short and long term. Specific risk factors within the score have varying prognostic values over time.
Area of Science:
- Cardiology
- Interventional Cardiology
- Clinical Risk Stratification
Background:
- The long-term predictive accuracy of the TIMI risk score for mortality in ST-elevation myocardial infarction (STEMI) patients is not well-established.
- Primary percutaneous coronary intervention (PPCI) is a key treatment for STEMI.
Purpose of the Study:
- To evaluate the short- and long-term predictive capabilities of the TIMI risk score for mortality in STEMI patients receiving PPCI.
- To identify specific TIMI risk score components that predict short-term versus long-term outcomes.
Main Methods:
- Analysis of data from 3,609 STEMI patients who underwent PPCI at a high-volume center.
- Kaplan-Meier analysis and log-rank tests were used to estimate cumulative event rates based on TIMI score variables.
- The TIMI risk score was adapted to the available single-center registry data.
Main Results:
- Higher TIMI risk scores were significantly associated with increased short- and long-term mortality (P < 0.001).
- Age and Killip Class IV were significant predictors for both short- and long-term mortality.
- Certain factors predicted short-term prognosis (anterior MI, heart rate >100, SBP <100 mmHg), while others predicted long-term prognosis (diabetes/hypertension history, weight). Time to PPCI showed no prognostic value.
Conclusions:
- The TIMI risk score demonstrates significant discriminative value for both short- and long-term mortality in STEMI patients treated with PPCI.
- Individual components of the TIMI risk score possess differential predictive power for short-term and long-term mortality.
- Risk stratification using the TIMI score aids in understanding prognosis following PPCI for STEMI.
Objectives:
We investigated the short- and long-term predictive value of the TIMI risk score regarding mortality for patients treated with primary percutaneous coronary intervention (PPCI) for ST-elevation myocardial infarction (STEMI).
Background:
Data on the long-term predictive value of the TIMI risk score is sparse.
Methods:
We used data from 3,609 STEMI patients undergoing PPCI in a high-volume PCI center in The Netherlands. Cumulative event rates according to TIMI score variables were estimated with the Kaplan-Meier method and compared with the log-rank test. The original TIMI risk score was modified based on the availability of the data in the single center registry.
Results:
Higher TIMI scores were associated with significantly higher mortality at short- and long-term follow-up (P < 0.001 for both). Age and Killip Class IV at presentation were significant predictors for both short- and long-term mortality. Patients with an anterior MI, heart frequence >100 beats per minute, or systolic blood pressure <100 mmHG had a worse short-term prognosis compared to those who had not. However, long-term mortality was nonsignificantly different. The presence of a history of diabetes/hypertension and weight had only long-term prognostic value. Time to PPCI did not have any prognostic value.
Conclusions:
Our current report shows that the TIMI risk score has both short- and long-term discriminative value. The different variables contained in the TIMI risk score predict short-term prognosis, others predominantly long-term mortality, whereas some are predictive for both.
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