Pressure Wire Assessment is an advanced technique used during coronary angiography to measure pressure differences across a narrowing and determine its true clinical significance. This helps ensure that treatment decisions are based on both anatomy and blood flow.” I would add: “This is often done as part of a standby coronary angiogram to confirm or refute if a stent is needed. If a stent is needed then the doctor will often proceed to this in the same sitting in a standby coronary angiogram. If a stent is potentially needed but the procedure is not a standby coronary angiogram then a stent may be planned as another procedure at a later date.
How Does It Work?
A specialised pressure-sensing wire is passed through the coronary artery and across the area of narrowing.
The wire measures blood pressure before and after the narrowing, allowing your cardiologist to determine whether the blockage is restricting blood flow sufficiently to require treatment.
Benefits of Pressure Wire Assessment
- More accurate assessment of coronary artery disease
- Helps avoid unnecessary procedures
- Supports evidence-based treatment decisions
- Improves planning for angioplasty and stenting
When Is It Used?
Pressure wire assessment is commonly used when the severity of a narrowing is uncertain or when multiple areas of disease are present within the coronary arteries.
Results
The findings help your cardiologist determine whether medication, stenting or alternative treatment options are most appropriate.
If your doctor places a stent you should not drive for 7 days after the procedure so will need someone to drive you home once you are ready for discharge. If no stent is placed then the restriction is only 48 hours
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