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ISSN: 1734-9338
Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej
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2/2015
vol. 11
 
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Images in intervention
Sequential contralateral injection through the same transradial vascular approach in a chronic total occlusion

Maria C. Ferrer-Gracia
,
Jose A. Linares
,
Jose R. Ruiz

Postep Kardiol Inter 2015; 11, 2 (40): 152–153
Online publish date: 2015/06/22
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Contralateral injection has been described as a useful tool in the treatment of chronic total occlusions (CTOs) to evaluate the distal segments of the occluded artery [1, 2].
This case shows that contralateral injections are feasible through just one puncture using a 6 Fr sheath, a long guidewire of 0.014” and a 5 Fr diagnosis catheter in parallel.
We present a 64-year-old man with severe peripheral vasculopathy. Coronary angiography showed a chronic total occlusion at the left circumflex artery and severe stenosis in the right coronary artery; circulation to the marginal branch was supplied from a posterolateral branch of the right coronary artery.
Percutaneous coronaty intervention (PCI) was performed through a 6 Fr sheath placed in the right radial artery. We began the procedure treating the left circumflex artery occlusion with an EBU 3.5 6 Fr guiding catheter and an Asahi Sion “J” guidewire which crossed the occlusion easily. However, after dilatations with a 2.5 × 15 mm balloon, no distal filling was observed (Figure 1 A).
We changed the first angioplasty guidewire for a 0.014” 300 cm length BMW guidewire. We passed in parallel a regular wire (0.035” 260 cm J) inside the guide catheter until it reached the aortic root. Then, using the same sheath, we changed to a JR 5 Fr diagnosis catheter to perform a contralateral injection. The injection from the right coronary artery showed that the guidewire was placed successfully in the marginal branch (Figure 1 B). After that we advanced the previous guiding catheter using again the regular guide in the aortic root while still maintaining the 0.014” BMW 300 cm in the marginal branch.
Needing buddy-wire technique, a 2.5 × 33 mm everolimus drug-eluting stent was successfully deployed in the middle segment of the circumflex artery towards the marginal branch, and another similar 2.25 × 18 mm stent distally to the previous one (Figure 1 C). Thereafter the collateral circulation to the marginal branch disappeared.
This case shows that contralateral injections are feasible through a unique puncture site using a 6 Fr sheath, a long guidewire of 0.014” placed in the endpoint branch and a 5 Fr diagnosis catheter in parallel. The 0.035” 260 cm J regular wire placed in the aortic root helps to change catheters, improving the softness of the angioplasty guidewire (and avoiding its prolapse in the coronary artery).
Recently there have been published reports of two different ways to perform bilateral angiography in a single radial access once the wires had crossed the CTO but it was uncertain whether the wires were in the true lumen. The first one, called BASIRALA (bilateral angiography in a single radial access) [3], uses a microcatheter to inject selectively in the donor branches connected with CTOs. The second one [4] involves injecting with the same multipurpose guiding catheter in which the operator creates a loop of the wire in the coronary sinus and ascending aorta. This looped wire allows the catheter to be turned towards the contralateral artery without disengagement of the wire.
None of these three techniques can offer a real simultaneous contralateral injection.
It is possible, simple and safe to perform contralateral injections using a parallel long angioplasty 0.014” guidewire and a diagnosis catheter one French smaller than the sheath. The use of one 0.035” 260 cm regular wire helps during catheter exchanges.

Conflict of interest

The authors declare no conflict of interest.

References


1. Singh M, Bell MR, Berger PB, et al. Utility of bilateral coronary injections during complex coronary angioplasty. J Invasive Cardiol 1999; 11: 70-4.
2. Weisz G, Moses JW. Contemporary principles of coronary chronic total occlusion recanalization. Catheter Cardiovasc Interv 2010; 75 Suppl 1: S21-7.
3. Zhang B, Wang F, Liao HT, et al. A new technique for bilateral angiography in a single radial access. Zhonghua Xin Xue Guan Bing Za Zhi 2013; 41: 108-10.
4. Kiemeneij F. Simultaneous transradial coronary angioplasty and contralateral coronary angiography with a single guide catheter for total coronary occlusions. J Invasive Cardiol 2014; 26: 87-90.
Copyright: © 2015 Termedia Sp. z o. o. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License (http://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
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