. 2015 Sep;31(5):373–380. doi: 10.6515/ACS20150515A

Table 2. Angiographic data before and after PCI .

	Group 1 (43)	Group 2 (124)	Group 3 (97)	p-value
Pre-PCI
Pre-PCI stenosis (%)	94.31 ± 8.53^a	95.78 ± 8.22^a	90.16 ± 10.64^b	< 0.001*
Pre-PCI MLD (mm)	0.16 ± 0.25^a	0.13 ± 0.27^a	0.29 ± 0.35^b	0.001*
Pre-PCI RLD (mm)	3.07 ± 0.52	3.12 ± 0.51	3.00 ± 0.63	0.253
Thrombus score (%)				< 0.001*
score ≥ 4	88.4^a	98.4^b	74.3^a
score ≤ 3	11.6	1.6	25.7
TIMI flow (%)				< 0.001*
grade ≤ 1	69.8^a	77.4^a	49.5^b
grade ≥ 2	30.1	22.6	50.5
Total occlusion (%)	65.1^a,b	72.6^a	47.4^b	0.001*
Post-PCI
Post-PCI stenosis (%)	11.46 ± 7.69	12.33 ± 10.86	11.06 ± 7.78	0.594
Post-PCI MLD (mm)	2.82 ± 0.52	2.89 ± 0.57	2.96 ± 0.88	0.501
Post-PCI RLD (mm)	3.19 ± 0.52	3.28 ± 0.49	3.25 ± 0.58	0.634
Thrombus score (%)				0.478
score ≥ 2	0	2.4	6.2
score ≤ 1	100	97.6	93.8
TIMI flow (%)				0.068
grade ≤ 2	0	4.1	8.9
grade 3	100	95.9	91.1
TMPG (%)				0.001*
TMPG ≤ 2	83.7^a	60.5^b	79.4^a
TMPG 3	16.3	39.5	20.6
Mean CTFC	15.40 ± 5.73^a,b	13.45 ± 5.78^a	15.84 ± 6.12^b	0.008*
CTFC range (%)				0.180
< 14	46.5	60.5	45.4
14~40	52.5	38.7	53.6
> 40	0	0.8	1
Stent length	25.71 ± 6.91	25.24 ± 6.71	25.80 ± 7.31	0.814
Stent diameter	3.12 ± 0.40	3.42 ± 0.22	3.13 ± 0.37	0.320

* Group 1: nitroprusside; Group 2: thrombectomy; Group 3: control; CTFC, corrected TIMI frame count; MLD, minimal luminal diameter; PCI, percutaneous coronary intervention; RLD, reference luminal diameter; TIMI, Thrombolysis in Myocardial Infarction flow grade; TMPG, TIMI myocardial perfusion grade.

* Data expressed as mean ± SD or % (n) of patients.

* Different letters (a, b, c) associated with different groups indicate significant difference (at 0.05 level) by Bonferroni multiple comparison procedure.