Table 2.

Baseline lesion and procedural characteristics

	Classical crush			DK crush	P Overall classical vs. DK crush
	Overall	Without final kissing balloon	With final kissing balloon
No. of lesions	163	39	124	161	> 1·0
Lesion characteristics
Thrombus	5	3	2	4	0·9
Severe calcification	0	0	0	1	0·7
Tortuous	20	6	14	14	0·6
Restenotic	5	1	4	5
Chronic occlusion	3	0	3	7	0·3
Lesion location (%)
LAD-diagonal	61·7	61·3	61·8	65·7	0·9
Distal LM	15·9	3·2	21·2	15·3	0·9
LCX-marginal	14·0	22·6	10·5	11·3	1·0
Distal RCA	8·4	12·9	6·6	7·6	0·9
Angle (°)	52·8 ± 23·0	46·2 ± 13·9	55·6 ± 25·4	53·8 ± 22·8	0·8
Guiding catheter (Fr)	7·1 ± 0·5	7·2 ± 0·4	7·1 ± 0·3	6·5 ± 0·5	< 0·001
GP IIb/IIIa use (#)	14	5	9	13	0·4
Balloons (#)	2·2 ± 0·8	2·1 ± 0·7	2·2 ± 0·9	2·5 ± 0·7	< 0·01
Contrast volume (ml)	108·4 ± 71·5	87·9 ± 59·8	117·1 ± 74·6	130·3 ± 78·5	0·04
Procedure time (min)	34·9 ± 18·4	34·9 ± 18·3	33·9 ± 18·5	46·5 ± 24·2	< 0·001
Cypher stents (%)	29	17	22	20	0·11
No of stents
Main vessel	1·1 ± 0·4	1·0 ± 0·2	1·2 ± 0·4	1·2 ± 0·4	0·4
Side branch	1·2 ± 0·4	1·0 ± 0·2	1·1 ± 0·3	1·0 ± 0·1	0·06
Overlapping stents (%)
Main vessel	10·4	4·4	13·3	17·3	0·14
Side branch	4·7	0	6·7	6·9	0·6
Max pressure (atm)
Main vessel	16·9 ± 2·8	17·0 ± 2·7	17·0 ± 2·8	16·7 ± 2·7	0·6
Side branch	16·0 ± 2·7	15·9 ± 2·7	16·0 ± 2·7	16·0 ± 2·7	0·9
Lesion length (mm)
Main vessel	20·0 ± 9·7	16·7 ± 5·5	21·4 ± 10·7	21·3 ± 11·3	0·4
Side branch	10·5 ± 7·5	10·2 ± 7·6	10·6 ± 7·5	10·3 ± 6·3	0·8
Stent length (mm)
Main vessel	25·0 ± 12·7	28·1 ± 5·4	22·0 ± 14·3	22·2 ± 12·5	0·5
Side branch	17·9 ± 7·0	15·4 ± 3·1	18·8 ± 8·0	17·4 ± 5·6	0·6
Stent diameter (mm)
Main vessel	3·39 ± 0·54	3·37 ± 0·55	3·42 ± 0·54	3·44 ± 0·35	0·8
Side branch	2·78 ± 0·39	2·59 ± 0·33	2·84 ± 0·39	2·71 ± 0·44	0·2
Unsatisfactory final kissing balloon inflation (%)			27·6	6·3	< 0·01

Abbreviations: LAD, left anterior descending; LCX, left circumflex; RCA, right coronary artery; GP, glycoprotein; DK, double kissing.