Initial experience with a new balloon-on-a-wire catheter: the Bijou

Area of Science:

• Interventional Cardiology
• Medical Device Technology

Background:

• Coronary artery disease necessitates effective percutaneous coronary intervention (PCI) techniques.
• Existing balloon catheter systems have limitations in pressure monitoring and drug delivery during PCI.

Purpose of the Study:

• To evaluate the initial clinical experience with the novel Bijou low-profile balloon
• on-a-wire
• catheter.
• To assess the safety and efficacy of the Bijou catheter in dilating coronary artery stenoses.

Main Methods:

• The Bijou catheter, featuring a dual-lumen design for pressure measurement, drug infusion, and guidewire passage, was used in 15 patients.
• Procedures included elective angioplasty for stable angina pectoris and emergency angioplasty for acute myocardial infarction.
• Stenosis locations varied, including the left anterior descending artery, right coronary artery, marginal branch, circumflex artery, and saphenous vein graft.

Main Results:

• Successful dilation of all stenoses was achieved, with residual stenosis less than 25%.
• Transstenotic pressure gradients significantly decreased from 49 +/- 13 mmHg to 7 +/- 4 mmHg post-angioplasty.
• One uncomplicated dissection occurred in 3 patients; no other complications were reported.

Conclusions:

• The Bijou catheter provides a dual-lumen configuration, combining the benefits of
• over-the-wire
• and
• on-a-wire
• systems.
• This new device facilitates pressure gradient assessment and drug infusion during coronary angioplasty.
• The initial experience suggests the Bijou catheter is a safe and effective tool for PCI.