Article

Culotte versus T-stenting in bifurcation lesions: Immediate clinical and angiographic results and midterm clinical follow-up

Royal Brompton and Harefield NHS Foundation Trust, Harefield, England, United Kingdom
American heart journal (Impact Factor: 4.56). 09/2007; 154(2):336-43. DOI: 10.1016/j.ahj.2007.04.019
Source: PubMed

ABSTRACT Stenting the main vessel with provisional stenting of the side branch (SB) is the method of choice for most bifurcation lesions. There is limited data on which of the two techniques of bifurcation stenting compatible with a provisional approach, culotte or T-stenting, offers the best outcome.
Between February 2004 and October 2005, 80 consecutive patients with bifurcation lesions requiring a second stent on the SB were treated with either culotte (n = 45) or T-stenting (n = 35). Coronary angiograms were analyzed using a quantitative angiography system dedicated to bifurcations. Propensity scores were used to adjust for baseline differences between groups.
Acute procedural success was 100% for both groups. Residual diameter stenosis of the SB ostium was 3.44% +/- 7.39% in the culotte group versus 12.55% +/- 11.47% in the T-stenting group (P < .0001). One patient (2.2%) in the culotte group had subacute thrombosis 2 days after the procedure. The culotte group had a lower target lesion revascularization rate compared with the T-stenting group (8.9% vs 27.3% propensity score adjusted; P = .014) and a trend toward lower major cardiac adverse events at 9 months (13.3% vs 27.3%; P = .051).
Both techniques of provisional SB stenting in bifurcation lesions achieve high procedural success with low complication rates. The culotte technique yields a better immediate angiographic result at the SB ostium, and, using drug-eluting stents, a better clinical outcome at 9 months.

0 Followers
 · 
60 Views
  • [Show abstract] [Hide abstract]
    ABSTRACT: A 63-year-old female patient, with history of 8-year hypertension and 10-year hyperlipidemia, presented with severe left main coronary bifurcation stenosis (LMCS) associated with the right coronary artery chronic total occlusion (CTO-RCA). On the day of admission, she received drug treatment with aspirin, clopidogrel, heparin, statins, angiotensin converting enzyme inhibitors and β-blocker. On the next day, she underwent CTO recanalization with 6F guiding-catheter and two rapamycin-eluting stents, and showed no postoperative discomfort after interventional treatment. Considering having hypertensive nephropathy and chronic renal insufficiency, the patient then received intravenous saline full hydration therapy. Two weeks after successful completion of the RCA revascularization, the original collateral circulation in the blood flow from the LMC to RCA became two-way flow. Under the safe and reliable protective condition, staged percutaneous coronary intervention (PCI) with 6F XB3.0 guiding catheter and rapamycin-eluting stents was applied to treat the LMCL. 9-month postoperative follow-up with coronary computed tomographic imaging showed no restenosis inside the original stent, without any myocardial ischemic event. Our successful approach to turn the original unprotected LMCS combined with CTO-RCA into a protective one reduces the interventional risk and provides additional option besides coronary artery bypass graft surgery to treat such complex coronary artery disease (CAD).
    International Journal of Clinical and Experimental Medicine 01/2014; 7(11):4509-14. · 1.42 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The impact of the bifurcation angle (BA) between the left main (LM) and the main branch on clinical outcomes after single stenting has never been documented. Therefore, the aim of this study was to investigate the impact of the BA on clinical outcomes after single cross-over LM to left anterior descending artery (LAD) stenting. A total of 170 patients who underwent percutaneous coronary intervention (PCI) in unprotected LM bifurcation with successful single cross-over stenting from the LM into the LAD were enrolled. The main vessel angle between the LM and the LAD was computed in end-diastole before PCI with three-dimensional (3D) quantitative coronary angiography (QCA) software. The patients were classified into three groups according to tertiles of the main vessel angle. The cumulative incidence of major adverse cardiac event (MACE: cardiac death, myocardial infarction, any revascularization including target lesion revascularization) rates throughout a 12-month period were compared between the three groups. Baseline patient characteristics were not a significant difference between the three groups. Compared to the high angle group, the low angle group had a significantly higher incidence of MACE (p = 0.041). In conclusion, this study revealed that low BA between the LM and the LAD had an adverse clinical impact after single cross-over LM to LAD stenting.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Background: Coronary artery bifurcation stenting using standard stents is associated with increased risk of complications and poor long-term prognosis. Bifurcation-dedicated stents raise a hope of improving the acute and late results of such procedures. Aim: To assess the early and mid-term results of bifurcation stenting with the specially designed bifurcation-dedicated Tryton side-branch stent. Methods and results: We evaluated 40 consecutive procedures of coronary artery bifurcation stenting using a Tryton stent in patients with stable angina or acute coronary syndrome without ST elevation. The stent was successfully implanted in 39 patients. The main vessel was treated with drug-eluting stents in 38 cases, whereas bare metal stents were used in the remaining two. In one case the procedure was complicated by non-Q wave myocardial infarction. During 30-day and 6-month observation no additional major adverse cardiac events were observed. Conclusion: Coronary bifurcation stenting with the Tryton side-branch stent is highly effective, with a low rate of acute and midterm complications.
    Postepy w Kardiologii Interwencyjnej / Advances in Interventional Cardiology 03/2011; 1(1):1-7. DOI:10.5114/pwki.2011.21185 · 0.07 Impact Factor