Pressure Guidewire Indicated for Coronary Fractional Flow Reserve Assessment: Structural Design, Deficiencies and...

Area of Science:

• Cardiovascular Medicine
• Medical Devices
• Interventional Cardiology

Background:

• Coronary heart disease (CHD) is a major global cause of death, often due to myocardial ischemia from atherosclerotic plaques.
• Accurate assessment of myocardial ischemia severity is vital for guiding CHD treatment, including medication and interventions.

Purpose of the Study:

• To review the historical development of pressure guidewires used for Fractional Flow Reserve (FFR) assessment.
• To examine the structure of commonly used pressure guidewires.
• To highlight clinical issues and propose solutions for pressure guidewire use in FFR measurement.

Main Methods:

• Review of historical literature on pressure guidewire development.
• Examination of the general structure of two market-available pressure guidewires.
• Analysis of reported clinical issues encountered during FFR assessment using pressure guidewires.

Main Results:

• Pressure guidewires are essential for clinical FFR assessment, measuring coronary lesion severity.
• Common issues include signal drift, tip breakage, core wire fractures, and coating detachment.
• The article identifies and discusses practical solutions for these encountered problems.

Conclusions:

• Pressure guidewires are critical tools for guiding coronary revascularization by assessing myocardial ischemia severity.
• Understanding and addressing common clinical issues with pressure guidewires can improve procedural safety and efficacy.
• This review provides valuable insights for clinicians and manufacturers to optimize pressure guidewire technology and application.