Bailout technique to rescue the abruptly occluded side branch with collapsed true lumen after main vessel stenting

Area of Science:

• Cardiovascular Interventions
• Interventional Cardiology
• Medical Device Technology

Background:

• Coronary artery bifurcation lesions pose technical challenges for percutaneous coronary intervention.
• Successful side branch (SB) recrossing after main vessel (MV) stenting is crucial for optimal outcomes.
• Dissections and hematoma formation in the SB can impede guidewire recrossing.

Observation:

• Guidewire recrossing into an abruptly occluded SB after MV stenting is often difficult.
• Hematoma can cause true lumen collapse in the SB, leading to guidewire entry into the false lumen.
• Unsuccessful guidewire recrossing can result in persistent SB occlusion.

Findings:

• A novel bailout technique was successfully employed to rescue an occluded SB.
• The technique involves small balloon dilation within the collapsed SB true lumen, distal to the stent strut.
• This facilitated guidewire penetration and subsequent recrossing, even in the presence of hematoma.

Implications:

• This technique offers a potential solution for managing complex SB occlusions post-stenting.
• It may improve procedural success rates in bifurcation interventions.
• Further studies are warranted to evaluate the long-term efficacy and safety of this bailout strategy.