Table 2

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

	2011		2012		2013		2014		P valuesfor trend
	n	%	n	%	n	%	n	%	P valuesfor trend
pPCI	30 800		34 974		39 524		39 361
Yes	3689	12.0	4359	12.5	4263	10.8	4211	10.7	<0.0001
On STEMI	2866	9.3	3499	10.0	3505	8.9	3544	9.0	<0.01
pPCI/PCI	2866/6514	44.0	3499/7302	47.9	3505/7889	44.4	3544/7856	45.1	0.78
On NSTEMI	334	1.1	372	1.1	349	0.9	365	0.9	<0.01
On UAP	489	1.6	488	1.4	409	1.0	302	0.8	<0.0001
No	27 111	88.0	30 615	87.5	35 261	89.2	35 150	89.3
Access artery	30 800		34 800		39 524		39 361
Radial	22 171	72.0	28 266	81.2	34 520	87.3	35 582	90.4	<0.0001
Femoral	8453	27.4	6527	18.7	4803	12.2	3545	9.0	<0.0001
Brachial	165	0.5	170	0.5	187	0.5	209	0.5	0.94
Others	11	0.0	11	0.0	14	0.0	25	0.1	0.06
Contrast type	30 080		34 154		38 585		39 361
Non-ionic	30 027	99.8	34 119	99.9	38 493	99.8	39 198	99.6	<0.0001
Iso-osmolar	10 055	33.4	12 988	38.0	16 540	42.9	20 034	50.9	<0.0001
Low-osmolar	19 972	66.4	21 131	61.9	21 953	56.9	19 164	48.7	<0.0001
Ionic	53	0.2	35	0.1	92	0.2	163	0.4	<0.0001
Antiplatelet	30 800		34 974		39 524		39 361
Aspirin	29 459	95.6	34 189	97.8	38 267	96.8	38 547	97.9	<0.0001
Clopidogrel	29 486	95.7	34 231	97.9	37 165	94.0	36 122	91.8	<0.0001
Ticagrelor	30	0.1	13	0.0	222	0.6	1299	3.3	<0.0001
Ticlopidine	54	0.2	50	0.1	520	1.3	1202	3.1	<0.0001
Cilostazol	22	0.1	17	0.0	23	0.1	15	0.0	0.11
GP IIb/IIIa inhibitor	4670	15.2	6232	17.8	6135	15.5	5099	13.0	<0.0001
Anticoagulation	30 800		34 974		39 524		39 361
UFH	18 788	61.0	21 343	61.0	22 885	57.9	24 547	62.4	0.19
LMWH	9248	30.0	10 398	29.7	12 622	31.9	12 012	30.5	<0.01
Fondaparinux	373	1.2	939	2.7	886	2.2	0	0.0	<0.0001
Bivalirudin	0	0.0	0	0.0	93	0.2	395	1.0	<0.0001
IABP	30 800		34 974		39 524		39 361
Yes	450	1.5	579	1.7	584	1.5	432	1.1	<0.0001
No	30 350	98.5	34 395	98.3	38 940	98.5	38 929	98.9
IVUS	30 800		34 974		39 524		39 361
Yes	439	1.4	399	1.1	383	1.0	439	1.1	<0.0001
No	30 361	98.6	34 575	98.9	39 141	99.0	38 922	98.9

GP IIb/IIIa, glycoprotein IIb/IIIa; IABP, intra-aortic balloon pump; IVUS, intravascular ultrasound; LMWH, low molecular weight heparin; NSTEMI, non-ST elevation myocardial infarction; pPCI, primary percutaneous coronary intervention; STEMI, ST elevation myocardial infarction; UAP, unstable angina pectoris; UFH, unfractionated heparin.