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PTCA with side-by-side balloon using fixed guide wire systems: a potential alternative autoperfusion device--an in
1Laboratoire d'Hémodynamique, Clinique Saint-Martin, Pessac, France.
Catheterization and Cardiovascular Diagnosis
|December 1, 1992
Summary
Two "hugging balloons" used in coronary angioplasty allow for significant perfusion, unlike single autoperfusion balloons. This double balloon technique offers a promising alternative for maintaining blood flow during procedures.
Area of Science:
- Cardiovascular Interventions
- Medical Device Engineering
- Hemodynamics
Background:
- The "hugging balloon" technique is established for coronary angioplasty.
- The perfusion capacity of dual, side-by-side angioplasty balloons has not been extensively studied.
- Dual balloons may leave sufficient arterial space for perfusion.
Purpose of the Study:
- To compare the perfusion efficacy of a dual 2.0 mm balloon system versus a 3.0 mm autoperfusion balloon.
- To evaluate the impact of these systems on distal flow in a simulated arterial conduit.
Main Methods:
- An in vitro experiment using a 3 mm internal diameter silastic tubing.
- Perfusion with a 5% glucose isotonic solution at varying proximal pressures.
- Measurement of distal pressures and flows with no balloons, deflated balloons, and inflated balloons.
Main Results:
- The dual balloon system demonstrated significantly less resistance to flow compared to the autoperfusion balloon.
- Perfusion run-off rates were consistently better with the dual balloon system.
- The difference in perfusion was more pronounced at lower proximal perfusion pressures.
Conclusions:
- A dual balloon system may serve as a viable alternative to autoperfusion equipment in certain angioplasty scenarios.
- This technique shows potential for maintaining distal perfusion during coronary interventions.
- Further clinical investigation is warranted to validate these findings in patient populations.