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Table 1 Patient characteristics

From: Does intravascular ultrasound provide clinical benefits for percutaneous coronary intervention with bare-metal stent implantation? A meta-analysis of randomized controlled trials

Study DIPOL AVID RESIST TULIP OPTICUS
  IVUS QCA IVUS QCA IVUS QCA IVUS QCA IVUS QCA
Demographic characteristics
Patients, n 83 80 369 375 79 76 73 71 273 275
Age. years, mean ± SD 56 ± 8 54 ± 8 62 ± 12 63 ± 11 57 ± 10 56 ± 12 63 ± 10 61 ± 10 60.1 ± 10 61.5 ± 9.5
Men,% 71 73 73 68 86 93 71 72 77 78
Smoker,% 47 52 - - 55 51 40 43 0.69 0.66
Previous MI,% 44 40 35 29 54 48 - - 0.32 0.32
Previous CABG,% - - 18 20 - - - - 0.03 0.04
Previous PCI,% - - 24 25 - - - - 0.2 0.2
Diabetes mellitus.% 10 11 15 17 9 8 21 16 0.17 0.17
Dyslipidemia,% 47 40 40 44 54 52 62 61 0.61 0.67
Hypertension,% - - 46 45 24 26 30 27 0.48 0.52
LV ejection fraction,%, mean ± SD 52 ± 9 48 ± 10 53 ± 13 55 ± 13 51 ± 9 53 ± 13 - - 56.5 ± 14 57.7 ± 14.3
Angiographic characteristics
Target vessel,%
- Left anterior descending artery 41 46 40 37 48 47 39 38 51 50
- Left circumflex artery 26 24 15 18 11 11 10 21 18 14
- Right coronary artery 33 30 35 32 41 42 51 41 30 35
- Left main coronary artery - - 0.8 0.5 - - - - - -
Lesion length, mm, mean ± SD N/A N/A 13.0 ± 7.7 13.3 ± 9.2 7.7 ± 3.5 8.0 ± 4.0 27.0 ± 9 29.0 ± 10 11.9 ± 5.1 11.6 ± 5.5
Reference diameter, mm, mean ± SD 3.21 ± 0.64 3.19 ± 0.59 3.05 ± 0.64 3.00 ± 0.54 3.0 ± 0.64* 2.89 ± 0.54* 2.95 ± 0.57 2.96 ± 0.53 2.97 ± 0.53 3.01 ± 0.51
Type B2 or C ACC/AHA lesions,% 13 10 N/A N/A 43 48 100 100 76 78
Pre-intervention
- Minimum lumen diameter, mm, mean ± SD 0.97 ± 0.33 0.95 ± 0.32 1.11 ± 0.5 1.09 ± 0.47 0.96 ± 0.37 1.02 ± 0.44 1.02 ± 0.42 0.99 ± 0.41 0.96 ± 0.35 0.99 ± 0.34
- Diameter stenosis,%, mean ± SD 69.7 ± 14.2 70.2 ± 11.4 63.4 ± 14.1 63.5 ± 14.3 65.0 ± 11.0 64.0 ± 12.0 65.0 ± 13.0 65.0 ± 10.0 67.6 ± 11.2 66.7 ± 10.1
Post-intervention
- Minimum lumen diameter, mm, mean ± SD 3.34 ± 0.55 3.06 ± 0.52 2.93 ± 0.55 2.87 ± 0.48 2.48 ± 0.43 2.46 ± 0.46 3.01 ± 0.40 2.80 ± 0.31 3.02 ± 0.49 2.91 ± 0.41
- Diameter stenosis,%, mean ± SD 3.4 ± 2.9 8.9 ± 5.4 N/A N/A 19.0 ± 10.0 19.0 ± 9.0 12.0 ± 7.0 13.0 ± 9.0 2.8 ± 7.8 6.0 ± 8.0
  1. * In the RESIST study, the reference diameter average was calculated. MI, myocardial infarction; CABG, coronary artery bypass graft; PCI, percutaneous coronary intervention; LV, left ventricular; ACA, American College of Cardiology; AHA, American Heart Association; IVUS, intravascular ultrasound; N/A, not applicable, QCA, Quantitative Coronary Angiography.