Table 3

percutaneous coronary intervention (PCI) characteristics of patients with acute coronary syndrome (ACS) during 2011–2014

	2011		2012		2013		2014		P values for trend
	n	%	n	%	n	%	n	%	P values for trend
Artery stenosis (%)	39 090		42 260		46 915		46 938
75–99	27 879	71.3	31 048	73.5	34 976	74.6	35 971	76.6	<0.0001
100	7228	18.5	8642	20.4	9704	20.7	9385	20.0	<0.0001
50–75	3557	9.1	2326	5.5	2003	4.3	1540	3.3	<0.0001
<50	426	1.1	244	0.6	232	0.5	42	0.1	<0.0001
Lesion category	38 606		41 713		46 292		46 073
Long lesion*	13 571	35.2	14 939	35.8	16 375	35.4	15 736	34.2	<0.001
General lesion	12 686	32.9	13 036	31.3	14 874	32.1	15 878	34.5	<0.0001
Total occluded lesion	4597	11.9	5532	13.3	6058	13.1	5930	12.9	<0.001
Calcified lesion	3184	8.2	3006	7.2	3473	7.5	2781	6.0	<0.0001
Bifurcation lesion	2545	6.6	2463	5.9	2479	5.4	2891	6.3	<0.01
Thrombus lesion	1782	4.6	2469	5.9	2711	5.9	2549	5.5	<0.0001
Small vessel†	217	0.6	246	0.6	277	0.6	272	0.6	0.59
Bypass graft lesion	24	0.1	22	0.1	45	0.1	36	0.1	0.12
Lesion vessel‡	30 457		34 800		39 427		39 295
Triple	12 298	40.4	12 803	36.8	13 253	33.6	12 301	31.3	<0.0001
Solitary	8580	28.2	11 567	33.2	14 395	36.5	14 912	37.9	<0.0001
LAD	5397	17.7	7090	20.4	8544	21.7	8599	21.9	<0.0001
RCA	2147	7.0	3111	8.9	3866	9.8	4222	10.7	<0.0001
LCX	1036	3.4	1366	3.9	1985	5.0	2038	5.2	<0.0001
Double	7308	24.0	8104	23.3	9180	23.3	9374	23.9	0.84
LAD+RCA	3694	12.1	3936	11.3	4270	10.8	4285	10.9	<0.0001
LAD+LCX	2558	8.4	2968	8.5	3475	8.8	3554	9.0	<0.001
LCX+RCA	1056	3.5	1200	3.4	1435	3.6	1535	3.9	<0.001
Triple+LM	1540	5.1	1481	4.3	1638	4.2	1644	4.2	0.0001
Double+LM	489	1.6	502	1.4	574	1.5	593	1.5	0.41
LAD+LCX + LM	230	0.8	247	0.7	339	0.9	315	0.8	0.16
LAD+RCA + LM	195	0.6	212	0.6	198	0.5	215	0.5	<0.05
LCX+RCA + LM	64	0.2	43	0.1	37	0.1	63	0.2	0.09
Solitary+LM	178	0.6	253	0.7	300	0.8	367	0.9	<0.0001
LAD+LM	139	0.5	197	0.6	220	0.6	281	0.7	<0.0001
RCA+LM	26	0.1	37	0.1	51	0.1	49	0.1	0.09
LCX+LM	13	0.0	19	0.1	29	0.1	37	0.1	<0.01
LM	64	0.2	90	0.3	107	0.3	128	0.3	<0.01
Target vessel‡	28 278		32 836		38 176		39 224
Solitary	20 801	73.6	25 513	77.7	30 592	80.1	31 456	80.2	<0.0001
LAD	10 735	38.0	13 277	40.4	15 749	41.3	15 960	40.7	<0.0001
LCX	3017	10.7	3563	10.9	4665	12.2	4867	12.4	<0.0001
RCA	7049	24.9	8673	26.4	10 178	26.7	10 629	27.1	<0.0001
Double	5713	20.2	5685	17.3	5906	15.5	5886	15.0	<0.0001
LAD+LCX	2723	9.6	2683	8.2	2865	7.5	2815	7.2	<0.0001
LAD+RCA	1978	7.0	1937	5.9	1904	5.0	1932	4.9	<0.0001
LCX+RCA	1012	3.6	1065	3.2	1137	3.0	1139	2.9	<0.0001
Solitary+LM	566	2.0	603	1.8	690	1.8	923	2.4	<0.001
LAD+LM	482	1.7	531	1.6	600	1.6	782	2.0	<0.01
LCX+LM	68	0.2	58	0.2	71	0.2	123	0.3	<0.05
RCA+LM	16	0.1	14	0.0	19	0.0	18	0.0	0.68
Double+LM	483	1.7	455	1.4	462	1.2	464	1.2	<0.0001
LAD+LCX + LM	405	1.4	375	1.1	387	1.0	382	1.0	<0.0001
LAD+RCA + LM	73	0.3	69	0.2	69	0.2	72	0.2	<0.05
LCX+RCA + LM	5	0.0	11	0.0	6	0.0	10	0.0	0.92
Triple	568	2.0	433	1.3	354	0.9	298	0.8	<0.0001
LM	97	0.3	113	0.3	153	0.4	173	0.4	<0.05
Triple+LM	50	0.2	34	0.1	19	0.0	24	0.1	<0.0001

*Denotes length of lesion >20 mm.
†Denotes vessel diameter <2.5 mm.
‡Include anomalous artery, intermediate artery and vessel graft.
LAD, left anterior descending artery; LCX, left circumflex artery; LM, left main artery; RCA, right coronary artery.