TRYTON is a cobalt chromium device specifically dedicated for bifurcation lesions to be implanted in the side branch. Circumflex artery is the major lateral branch fund the coronary tree. Between 2008 and 2011 this work included 52 patients with left main coronary unprotected lesions who underwent angioplasty with drug-eluting stent in the coronary trunk left / anterior descending and TRYTON dedicated stent in the circumflex artery. Angiographic analysis was performed by intra-IVUS procedure and then at 6 months. 73% of the branches were classified as medium 1,1,1 and median Syntax average score of 28. There was a 7% periprocedural infarct, and at 6-months, target lesion revascularization rate was 13% for lateral branch and absent in the main branch.

Conclusion

TRYTON dedicated implantation stent in the side branch and a drug eluting stent into the main branch were effective for treating bifurcation lesions in left main coronary artery.

Robert-Jan van Geuns
2014-05-23

Title: Dedicated bifurcation stent in left main coronary artery: 6-month angiography and IVUS results of prospective registry