Table 2

Baseline angiographic and procedural data on current smokers, ex-smokers, and non-smokers

Non-smokers Ex-smokers Current smokers Significance value
Number of diseased vessels 0.347
 1-VD65.0%62.9%66.0%
 2-VD26.4%29.5%25.7%
 3-VD7.8%7.2%7.6%
Lesion location
 LAD50.6%2-150 2-151 42.0%41.1% 0.002
 LCx22.8%24.7%23.8%
 RCA26.5%2-150 2-151 33.3%34.9% 0.002
Lesion characteristics
 Total occlusion pre-PTCA7.8%7.5%7.02-150 0.852
 Concentric46.2%43.8%44.6%0.606
 Tandem lesion3.8%4.2%3.9%0.871
 Multiple irregularities8.3%7.5%8.4%0.742
 Branch point in stenosis37.3%32.2%26.8%0.054
 Branch point in dilatation site65.4%65.5%61.8%0.635
 Coronary artery bend19.9%19.7%18.3%0.772
 Calcified lesion12.5%12.8%10.2%0.275
 Thrombus visible (pre-or post-PTCA)5.4%4.5%6.0%0.316
Degree of collateral supply
 No collaterals78.5%2-150 2-151 85.1%87.7% 0.005
 Slight (minimal perfusion)5.9%2-150 2-151 4.2%3.1% 0.005
 Medium (partial perfusion)6.8%2-150 2-151 4.4%4.6% 0.005
 Major (complete perfusion)4.0%2-151 3.7%1.6% 0.005
 Not assessed4.8%2-150 2-151 2.7%2.9% 0.005
PTCA procedure data (mean (SD))
 Nominal size of largest balloon (mm)2.87 (0.42)2.89 (0.43)2.87 (0.42)0.342
 Balloon to artery ratio1.13 (0.18)1.12 (0.18)1.12 (0.19)0.402
 Total number of inflations3.6 (2.6)3.6 (2.2)3.8 (2.4)0.412
 Total duration of inflation (s)301 (267)323 (264)344 (288)2-150 0.021
 Maximum inflation pressure (atm)8.2 (2.5)8.6 (2.5)2-150 8.7 (2.5)2-150 0.001
Post-PTCA result
 Dissection at the dilated site37.5%34.2%31.3%0.069
 Dissection type0.255
  Type A16.0%14.9%15.7%
  Type B16.7%15.1%11.1%
  Type C4.1%3.7%4.0%
  Type D0.2%0.0%0.0%
  Type E0.2%0.2%0.0%
  Type F0.2%0.0%0.0%
Days to follow up (mean (SD))161 (45)162 (44)163 (44)0.553

  • ↵2-150 p < 0.05 v non-smokers;

  • ↵2-151 p < 0.05 v current smokers.

  • 1, 2, 3-VD, one vessel, two vessel, three vessel disease; LAD, left anterior descending coronary artery; LCx, left circumflex coronary artery; PTCA, percutaneous transluminal coronary angioplasty; RCA, right coronary artery.