Left Anterior Descending Bifurcation Lesion Treated with Provisional T Stenting

- Operator : Seung-Jung Park

Left Anterior Descending Bifurcation Lesion Treated with Provisional T Stenting
- Operator: Seung-Jung Park, MD

The patient is a 65 year old man with exertional chest pain for 6 months and resting chest pain for 3 weeks. His risk factors included hypertension and smoking. His baseline ECG was normal. His resting LV ejection fraction was 58% with no regional wall motion abnormalities.

Coronary Angiography

Coronary angiogram showed a middle left anterior descending artery (LAD) bifurcation lesion with proximal involvement (Figure 1, Figure 2, Figure 3).

Procedure

An 8F 3.5 EBU guiding catheter was engaged at the ostium of the left main coronary artery. Two Neos 0.014 inch guidewires were placed into the LAD and the diagonal branch. The diagonal branch and the LAD were pre-dilated with a Black Hawk balloon (2.5 X 20 mm) (Figure 4 ). Then, a Cypher stent (3.5 X 23 mm) was placed at the LAD bifurcation at 16 atm (3.76 mm) (Figure 5 ). Because the narrowing of the diagonal branch was aggravated after stenting (Figure 6 ), the diagonal branch was re-accessed with a Choice PT wire. A kissing ballooning was performed with a stent balloon (3.5 X 25 mm) for the LAD (at 10 atm, 3.33 mm) and an Apollo balloon (3.0 X 20 mm) for the diagonal branch (at 20 atm, 3.6 mm). But, the narrowing of the diagonal branch maintained. So, an additional Cypher stent (2.75 X 13 mm) was deployed at the diagonal lesion at 18 atm (3.01 mm) with "T" stenting technique (Figure 7 ). Afterwards, adjunctive high pressure dilation using a kissing balloon technique was performed to achieve angiographic optimization (Figure 8 ). The final angiogram revealed optimal stent expansions without significant residual narrowing in both branches (Figure 9 , Figure 10 ).

Comments

  • dswho@mac.com 2005-01-21 Dear Dr Park How much of the diagonal stent struts did you leave in the LAD ? What is your observed long term angiographic results following T stenting with 2 DES and 2 non DES ? Regards, Looking forward to meet you in your meeting in April David Ho
  • Young-Hak Kim 2005-01-25 We try to put the side branch stent minimally protruding into the main vessel. However, in such a practice, we should be careful not to leave a gap at the carina. We are gathering follow-up data of various bifurcation stenting technologies.
  • Marcelo Ribeiro 2005-01-31 As the current technology stands,i think provisional t stent is the best approach, and it is my first choice considering this type of bifurcation;not infrequently however,the provisional stent gets a little proximal to the ideal point ,which brings new challenges for final kissing balloon inflation,and raises questions about increased risks of SAT.How often do you use(or believe ) in 2b3a inhibitors in this situation?
  • Young-Hak Kim 2005-01-31 I agree that provisonal T stenting remains a viable option in the DES era and IIb/IIIa inhibitor may have an improtant role in complex coronary intervensions, such as bifurcation lesion, LM lesion, ISR lesion, etc. However, unfortunately, we have used it in selected cases by the insurance and economical problems. So, we prefer cilostazol as an additional antiplatelet regimen.

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