Research Article
The Clinical Effects of Intravascular Ultrasound-Guided Percutaneous Coronary Intervention in Patients with Chronic Total Occlusion: A Meta-Analysis
Table 2
Angiographic and procedural characteristics.
| | Study | IG/AG | Second-generation DES, % | CTO vessel, % | Successful strategy, % | Number of stents, n | Bilateral injection, % | | LAD | LCX | RCA | AWE | ADR | RA |
| | Kalogeropoulos et al. [16] | IG | 100 | 25.3 | 7.1 | 67.6 | 60.4 | 9.3 | 30.2 | 2.4(2.0–3.0) | 94.0 | | AG | 100 | 28.0 | 9.3 | 62.6 | 69.2 | 9.9 | 20.9 | 3.0(2.0–3.0) | 90.1 |
| | Vemmou et al. [17] | IG | NR | 32.8 | 16.7 | 49.3 | 53.5 | 17.4 | 28.8 | 2.0(2.0–3.0) | 78.1 | | AG | | 23.5 | 20.5 | 54.8 | 57.1 | 19.8 | 21.4 | 2.0(1.0–3.0) | 75.5 |
| | Kim et al. [18] | IG | 100 | 41.8 | 14.4 | 43.8 | 93.0 | 7.0 | 1.7 ± 0.8 | 50.2 | | AG | 100 | 46.8 | 15.9 | 37.3 | 90.5 | 9.5 | 1.6 ± 0.7 | 45.8 |
| | Tian et al. [19] | IG | 28 | 44.3 | 20.9 | 34.8 | 89.6 | 10.4 | 1.6 ± 0.9 | 80.9 | | AG | 20 | 36.5 | 14.8 | 46.1 | 80.9 | 19.1 | 1.5 ± 0.8 | 89.6 |
| | Hong et al. [20] | IG | 100 | 44 | 16 | 40 | NR | 1.71 ± 0.77 | NR | | AG | 100 | 34 | 25 | 41 | 1.41 ± 0.69 | |
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IG, intravascular ultrasound-guided group; AG, angiography-guided group; DES, drug-eluting stent; CTO, chronic total occlusion; LAD, left anterior descending artery; LCX, left circumflex coronary artery; RCA, right coronary artery; AWE, antegrade wire escalation; ADR, antegrade dissection reentry; RA, retrograde approach; NR, not reported. Values are presented as mean ± SD or interquartile range.
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