Korean Circ J.  2021 Nov;51(11):939-941. 10.4070/kcj.2021.0263.

A Novel ‘Bailout Switch Crush Technique’ for a Jailed Side Branch Unable to Rewire

  • 1Department of Cardiology in Internal Medicine, Chungnam National University Sejong Hospital, Chungnam National University School of Medicine, Sejong, Korea


  • Figure 1 Coronary angiographic findings. Severe stenosis involving bifurcation of the left anterior descending coronary artery (A). During the dissection spreads to the distal SB, blood flow was blocked (arrowhead; B). The guide extension catheter is inserted into the SB (C) and the final angiography (D).SB = side branch.

  • Figure 2 A schematic representation of the ‘rescue’ balloon jailing and switch crush technique. Compromised SB (A). ‘Rescue’ balloon jailing technique with a small balloon (B). Inflation of the jailed SB with a larger balloon (C). Delivery of the guide extension catheter (D). The SB stent is inserted through the guide extension catheter (E, F). SB stent expansion (G). The final kissing balloon inflation (H) and the final result (I).SB = side branch.


1. Aminian A, Dolatabadi D, Lalmand J. Small balloon inflation over a jailed wire as a bailout technique in a case of abrupt side branch occlusion during provisional stenting. J Invasive Cardiol. 2010; 22:449–452. PMID: 20814055.
2. Burzotta F, Trani C. Jailed balloon protection and rescue balloon jailing techniques set the field for safer bifurcation provisional stenting. Int J Cardiol. 2015; 201:376–377. PMID: 26310980.
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