Table 1

Percentage change in indices derived from right ventricular pressure–volume cycles after 60 seconds of coronary occlusion in patients undergoing coronary angioplasty

Patient	Coronary disease	Dominance	maxP	maxV	minV	sv	sw	dP/dtmax	Cycle efficiency
1	Mid LAD	RCA	18.6	0.7	1.8	−5.6	1.7	8.7	−13.0
2	Proximal LAD	RCA	5.6	0.1	0.2	−1.6	−3.0	0.0	5.8
3	Mid LAD	RCA	0.2	5.6	8.3	−8.8	−15.7	8.5	−17.9
4	Mid LAD	RCA	42.3	0.8	10.6	−41.5	−55.6	21.1	−78.3
5	Mid LAD	RCA	−9.5	3.9	11.7	−41.4	−50.4	21.1	−12.2
6	Mid LAD	RCA	4.0	−3.6	−4.1	−0.5	−23.8	32.6	−14.9
7	Proximal LAD	RCA	−4.5	1.0	3.5	−14.6	−44.2	−13.8	−62.2
8	Proximal D1	RCA	9.7	0.7	2.7	−12.9	1.9	9.2	13.1
9	Mid LAD	RCA	1.1	−1.5	−0.2	−9.6	−70.0	−15.2	1.5
10	Mid LAD, distal LAD	RCA	31.6	2.4	2.2	3.4	50.2	24.0	2.0
	Proximal OM1		−1.0	3.8	0.2	20.8	−4.0	−7.6	−3.6
11	Proximal RCA	RCA	−6.7	1.9	3.3	−8.5	1.5	9.6	6.8
12	Proximal RCA, mid RCA	RCA	1.9	2.0	−1.8	33.1	−6.2	11.7	−18.0
13	Mid RCA (subtotal occ), proximal Cx (occ)	RCA	−0.5	1.9	0.7	15.0	29.8	−16.0	6.6
14	Proximal RCA	RCA	−9.8	2.7	1.8	−13.9	−17.3	−10.7	−4.8
15	Mid RCA	RCA	−8.0	8.2	3.8	19.9	−22.5	−13.0	−19.8
16	Mid RCA (subtotal occ), distal Cx	RCA	−1.7	1.1	1.2	0.7	−30.0	1.2	−29.2
17	Mid RCA	RCA	−13.3	4.6	8.0	−22.2	−61.2	−32.0	−35.2
18	Mid RCA (occ)	RCA	0.0	0.2	2.7	−16.4	−15.8	−2.8	1.9
19	Proximal RCA	RCA	−5.6	4.2	0.8	29.8	−6.8	60.8	29.7
	Mid OM1		3.0	−0.5	−0.2	−2.5	36.7	2.9	−5.1

Coronary disease: all potentially significant lesions (minimum cross section >50% main vessel) in the preangioplasty coronary arteriogram.
Cx, circumflex coronary artery; D1, 1st diagonal branch of left anterior descending coronary artery; dP/dtmax, maximum value of 1st derivative of pressure with respect to time; LAD, left anterior descending coronary artery; maxP, maximum pressure; maxV, minV, maximum and minimum ventricular volumes; occ, occlusion; OM1, 1st obtuse marginal branch of circumflex coronary artery; RCA, right coronary artery; sv, stroke volume; sw, stroke work.