TIMI Score Calculator for UA/NSTEMI

The TIMI Score Calculator is a simple tool used to assess the 14-day risk of death or major health complications in patients with Unstable Angina or Non-ST-segment Elevation Myocardial Infarct. It helps identify high-risk patients for timely and appropriate medical interventions.

What is TIMI Score Calculator

The TIMI Score Calculator is a tool used to evaluate the 14-day risk of death or major health complications.

• It is based on international, randomized, double-blind trials and has been validated on thousands of patients by the TIMI Study Group.
• By assessing the TIMI score, medical professionals can identify patients who may require more aggressive treatment and specialized care.
• It is a valuable prognostic tool to aid in clinical decision-making for patients with UA or NSTEMI.

What is TIMI Score

TIMI Score stands for Thrombolysis In Myocardial Infarction Score.

• It is a risk assessment tool used to determine the 14-day risk of death or major health complications in patients with Unstable Angina (UA) or Non-ST-segment Elevation Myocardial Infarct (NSTEMI).
• The score is based on seven risk factors, including age ≥ 65 years, ≥ 3 risk factors for coronary artery disease, known CAD with stenosis ≥ 50%, acetylsalicylic acid use in the past seven days, severe angina, EKG deviations (ST-segment depression), and positive cardiac markers.
• The TIMI Score helps healthcare professionals identify high-risk patients for timely and appropriate medical interventions.
• It has been validated through international trials and is considered a valuable prognostic tool for clinical decision-making in patients with UA or NSTEMI.

TIMI Score Formula

Here is the formula for calculating TIMI Score.

TIMI Score = (Age ≥ 65 years) + (≥ 3 risk factors for coronary artery disease) + (Known CAD with stenosis ≥ 50%) + (Acetylsalicylic acid use in the past seven days) + (Severe angina) + (EKG deviations) + (Positive cardiac marker)

Each risk factor that is present in the patient is assigned a value of 1 point, and the total TIMI Score is the sum of the points. The higher the TIMI Score, the higher the risk of adverse outcomes.

TIMI Score Result

TIMI  score ranges from 0 to 7, with higher scores indicating a higher risk of adverse events. Here is a data presenting the TIMI Score and the corresponding risk level:

TIMI Score is an important tool for risk stratification, and the actual interpretation of the score should be done in consultation with a healthcare professional.

Risk Factor of TIMI Score Calculator

Here are the seven risk factors in the TIMI score calculator:

1. Age ≥ 65 years

2. ≥ 3 risk factors for coronary artery disease (CAD), including:

   • • Diabetes
     • Hypercholesterolemia and distorted cholesterol ratios
     • Family history of CAD (Coronary Artery Disease)
     • Hypertension
     • Being a current smoker (quitting one minute ago doesn't count - smoking recovery takes time) Check this criterion positive if at least three of them are present.

3. Known CAD with stenosis ≥ 50% - this refers to patients with a history of coronarography. Remember to ask the patient about incidents like myocardial infarction, stent or CABG placement, or prior angina pectoris.

4. Acetylsalicylic acid use in the past seven days - get a recent medical history with a list of all the drugs the patient is currently taking. Some acetylsalicylic acid medicines are OTCs (Over-The-Counter drugs), don't forget to ask about that.

5. Severe angina - defined here as at least two episodes in the past 24 hours.

6. EKG deviations - in this case, we're looking for ST-segment depression (as in ST elevation we would be using another TIMI risk score). Look for changes of at least 0.5mm (0.5 mV).

7. Positive cardiac marker - abnormally high levels of cardiac troponin I or T (cTnI or cTnT) or cardiac kinase - myocardial bands (CK-MB) are a bad sign, as they are a sign of heart damage. This parameter is considered the most prognostic of the TIMI score risk factors and is associated with adverse outcomes.

TIMI Score Calculator Benefits

Here are the benefits of the TIMI Score Calculator.

• Provides a simple and effective risk assessment tool for patients with Unstable Angina (UA) or Non-ST-segment Elevation Myocardial Infarct (NSTEMI).
• Helps healthcare professionals identify patients at higher risk of death or major health complications within 14 days.
• Facilitates timely and appropriate medical interventions for high-risk patients, potentially improving outcomes.
• Based on international trials and validated by the TIMI Study Group, making it a reliable prognostic tool.
• Assists in clinical decision-making by guiding treatment strategies and the need for specialized care.

Summary

Overall, TIMI Score Calculator is a simple and effective tool to assess the 14-day risk of adverse outcomes in patients with Unstable Angina or Non-ST-segment Elevation Myocardial Infarct.

 

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Reference

• TIMI - Wikipedia [1].
• TIMI Risk Score - Wikidoc [2].