Related Experiment Video
Updated: Feb 14, 2026

Corneal Epithelial Abrasion with Ocular Burr As a Model for Cornea Wound Healing
Published on: July 10, 2018
Trapping Balloon Technique for Removal of the Burr in Rotational Atherectomy
Kei Yamamoto1, Kenichi Sakakura1, Yousuke Taniguchi1
1Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University.
Insights
Rotational atherectomy (RA) complications like burr entrapment require specific bailout techniques. A novel KUSABI trapping balloon method offers a more reliable way for interventional cardiologists to remove the atherectomy burr.
Area of Science:
- Interventional Cardiology
- Cardiovascular Surgery
Background:
- Rotational atherectomy (RA) is used to treat complex coronary artery disease.
- RA carries unique risks, including burr entrapment and vessel perforation, necessitating effective bailout strategies.
- Maintaining guidewire position during burr removal is challenging due to long guidewires and procedural complexity.
Observation:
- A case study involving an 83-year-old male with stable angina undergoing RA of the left anterior descending artery is presented.
- The KUSABI trapping balloon technique was employed for burr removal.
- The procedure was successfully completed without activating dynaglide mode.
Findings:
- The KUSABI trapping balloon technique provides a reliable method for removing rotational atherectomy burrs.
- This technique simplifies the bailout process, enhancing operator confidence.
- Successful burr removal was achieved, avoiding potential complications.
Implications:
- This technique can improve the safety and efficacy of rotational atherectomy procedures.
- Interventional cardiologists can benefit from adopting this simpler, more reliable burr removal strategy.
- Enhanced familiarity with bailout procedures can lead to better patient outcomes in complex coronary interventions.
Abstract:
Because rotational atherectomy (RA) has several unique complications, such as burr entrapment, vessel perforation, and slow flow, it is important for interventional cardiologists to be familiar with bailout procedures for such complications. The principal part of bailout procedures is to keep a guidewire in the target coronary artery during the procedure. However, it is not easy to keep a guidewire in the same position during the removal of a burr because the length of the RA guidewires is 300 cm, and the removal of a burr requires collaboration between the primary operator and an assistant. We describe the case of an 83-year-old male with stable angina. We performed RA to the left anterior descending artery, and removed the burr using a KUSABI (Kaneka Medix Corporation, OSAKA, Japan) trapping balloon technique without activating the dynaglide mode. This simple technique would help RA operators remove a burr more reliably than the conventional removal technique.
Related Concept Videos
Social Traps
Kinematic Equations for Rotation
For instance, imagine a point A on a rigid body engaged in circular motion. The translational velocity of this particular point can be calculated by taking the time derivatives of the displacement equation, which essentially measures the...
Rotation of Asymmetric Top
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
Rotation with Constant Angular Acceleration - I
Using our intuition, we can begin to see how rotational quantities such as angular displacement, angular velocity, angular acceleration, and time are related to one another. For example, if a flywheel...
Rotation with Constant Angular Acceleration - II
The first...
Apparent Weight and the Earth's Rotation
For an object on the Earth's equator, the net centripetal force that accounts for its rotation is the Earth's pull towards its center, or the weight minus the normal force that prevents it from piercing into the Earth's surface....

