Table 1.

Coronary angiographic and collateral data, TNFα

	Insufficient collaterals	Sufficient collaterals	p Value
Number of patients	78	22
Coronary angiography
One/two vessel disease	59%/41%	62%/38%	NS
Number of vessels diseased	1.7 (0.7)	1.8 (0.8)	NS
Vessel (PTCA): LAD/LCX/RCA	55%/15%/30%	23%/68%/9%	0.06
Diameter stenosis (%)	75 (15)	87 (11)	0.001
Collateral assessment
Angiographic degree (before occlusion, 0–3)	0.4 (0.7)	1.3 (1.1)	0.0001
Angina pectoris during PTCA	6 (7%)	6 (27%)	0.001
Collateral flow index (no unit)	0.17 (0.12)	0.34 (0.15)	0.0001
TNFα detectable (> 1 pg/ml)	41 (53%)	6 (27%)	0.03
TNFα (pg/ml)	30.3 (79.7)	1.9 (6.5)	<0.05

Data presented as mean (SD) unless otherwise indicated.

LAD, left anterior descending coronary artery; LCX, left circumflex coronary artery; NS, not significant; PTCA, percutaneous transluminal coronary angioplasty; RCA, right coronary artery; TNFα, tumour necrosis factor α.