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[Pressure wire guide provisional coronary stent implantation]
S Nakamura1, H Anzai, T Takagi
1Division of Internal Medicine, Kyoto Katsura Hospital Cardiovascular Center, Yamada Hirao-cho 17, Nishikyo-ku, Kyoto 615-8256.
Journal of Cardiology
|May 8, 2001
Summary
Successful balloon angioplasty with a fractional flow reserve (FFR) of 0.75 or higher means coronary artery lesions may not need stenting. This pressure wire guided study found provisional stenting reduced unnecessary procedures.
Area of Science:
- Cardiovascular medicine
- Interventional cardiology
- Medical devices
Context:
- The decision to stent or not stent after successful balloon angioplasty for coronary artery lesions remains debated.
- Fractional flow reserve (FFR) is a key physiological measure to assess the functional significance of coronary stenoses.
Purpose:
- To evaluate the efficacy of a provisional stenting strategy guided by pressure wire-derived FFR measurements in patients with de-novo coronary lesions.
- To determine if an FFR threshold can reliably predict the need for stent implantation after balloon angioplasty.
Summary:
- Thirty-one patients underwent pressure wire assessment of FFR before and after balloon angioplasty.
- Stent implantation was performed if post-angioplasty FFR was < 0.75, or at operator discretion.
- Overall, 77% of lesions were successfully treated with balloon angioplasty alone, with no major adverse cardiac events reported during follow-up.
Impact:
- This study suggests that a post-angioplasty FFR of ≥ 0.75 is a reliable indicator that stenting may be safely omitted.
- The findings support a more conservative approach to stenting, potentially reducing procedural complications and costs.
- This pressure wire-guided strategy can help optimize treatment decisions in interventional cardiology.