Research Article
Clinical Implications of Bifurcation Angles in Left Main Bifurcation Intervention Using a Two-Stent Technique
Table 5
Independent predictors of TLF in patients treated with the crush technique and T-stenting.
| | | Univariable analysis | Multivariable analysis | | HR (95% CI) | value | HR (95% CI) | value |
| | Crush Technique | | | | | | Wide angle of LM-LAD (≥152°) | 2.50 (1.32–4.73) | 0.005 | 2.57 (1.34–4.90) | 0.004 | | Wide angle of LAD-LCX (≥70°) | 1.01 (0.54–1.90) | 0.983 | — | — | | Diabetes mellitus | 1.18 (0.63–2.19) | 0.613 | — | — | | Dyslipidemia | 1.27 (0.67–2.40) | 0.461 | — | — | | Current smoker | 0.96 (0.46–1.99) | 0.907 | — | — | | Low LV systolic function (<50%) | 1.27 (0.62–2.58) | 0.509 | — | — | | Chronic kidney disease | 1.36 (0.53–3.47) | 0.521 | — | — | | Acute coronary syndrome | 1.20 (0.63–2.28) | 0.577 | — | — | | MV calcification | 1.55 (0.85–2.81) | 0.152 | 1.60 (0.86–3.00) | 0.138 | | Long SB lesion (>5 mm) | 1.98 (0.92–4.26) | 0.081 | 1.57 (0.70–3.51) | 0.275 | | High SYNTAX score (≥33) | 2.52 (1.16–5.46) | 0.019 | 1.80 (0.97–3.33) | 0.062 | | Final kissing ballooning | 0.97 (0.41–2.34) | 0.953 | — | — | | IVUS-guided PCI | 0.95 (0.52–1.73) | 0.874 | — | — | | True bifurcation | 1.63 (0.82–3.22) | 0.162 | 1.28 (0.63–2.61) | 0.501 | | 2nd generation DES | 1.42 (0.73–2.76) | 0.308 | — | — |
| | T-stenting technique | | | | | | Wide angle of LM-LAD (≥152°) | 0.85 (0.44–1.67) | 0.641 | — | — | | Wide angle of LAD-LCX (≥70°) | 1.53 (0.73–3.18) | 0.258 | — | — | | Diabetes mellitus | 0.97 (0.46–2.01) | 0.926 | — | — | | Dyslipidemia | 1.17 (0.59–2.33) | 0.656 | — | — | | Current smoker | 2.17 (1.04–4.52) | 0.039 | 1.94 (0.82–4.58) | 0.129 | | Low LV systolic function (<50%) | 2.33 (1.01–5.37) | 0.047 | 2.08 (0.86–5.00) | 0.103 | | Chronic kidney disease | 1.50 (0.46–4.91) | 0.506 | — | — | | Acute coronary syndrome | 0.83 (0.42–1.61) | 0.578 | — | — | | MV calcification | 2.31 (1.18–4.52) | 0.014 | 2.78 (1.20–6.41) | 0.017 | | Long SB lesion (>5 mm) | 1.81 (0.85–3.87) | 0.125 | 1.12 (0.47–2.70) | 0.796 | | High SYNTAX score (≥33) | 1.68 (0.34–3.41) | 0.912 | — | — | | Final kissing ballooning | 0.75 (0.18–3.17) | 0.694 | — | — | | IVUS-guided PCI | 0.94 (0.45–1.96) | 0.859 | — | — | | True bifurcation | 1.47 (0.64–3.36) | 0.365 | — | — | | 2nd generation DES | 0.87 (0.44–1.72) | 0.697 | — | — |
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CI, confidence interval; DES, drug-eluting stent; HR, hazard ratio; LAD, left anterior descending artery; LCX, left circumflex artery; LM, left main; LV, left ventricle; MV, main vessel; SB, side branch; TLF, target lesion failure.
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