Research Article

The Impact of Intracoronary Imaging on PCI Outcomes in Cases Utilising Rotational Atherectomy: An Analysis of 8,417 Rotational Atherectomy Cases from the British Cardiovascular Intervention Society Database

Table 1

Baseline participant characteristics by intracoronary imaging use in patients undergoing RA-PCI in England and Wales, 2007−2014.

VariableAll (n = 8417)No imaging (n = 7138)Imaging (n = 1279) value

Age (years), ±SD73.1 ± 9.373.2 ± 9.372.6 ± 9.30.03
Female gender, no. (%)2356 (28)2024 (28.4)332 (26)0.09
Weight (kg), ±SD80.8 ± 17.380.6 ± 17.181.7 ± 18.40.21
CCS score, ±SD2.5 ± 12.5 ± 12.6 ± 1.1<0.01
NYHA score, ±SD2.1 ± 0.92.1 ± 0.92.2 ± 0.90.01
No. of diseased vessels pre-PCI, ±SD1.7 ± 0.91.7 ± 0.91.8 ± 0.9<0.01
Renal disease, no. (%)562 (6.9)469 (6.8)93 (7.5)0.40
Clopidogrel, no. (%)6890 (84.5)5857 (84.6)1033 (84.3)0.84
Prasugrel, no. (%)87 (1.1)72 (1)15 (1.2)0.62
Ticagrelor, no. (%)344 (4.2)290 (4.2)54 (4.4)0.81
Stroke, no. (%)622 (8.8)499 (8.4)123 (11)0.01
Diabetes, no. (%)2529 (30.7)2138 (30.6)391 (31.2)0.69
Ejection fraction <30%, no. (%)527 (9.7)447 (10)80 (8.4)0.15
Hypertension, no. (%)6015 (84.8)5057 (84.7)958 (85.6)0.47
ACS, no. (%)3265 (38.8)2718 (38.1)547 (42.8)<0.01
STEMI, no. (%)112 (1.4)101 (1.5)11 (0.9)0.13
NSTEMI, no. (%)3067 (38.1)2554 (37.3)513 (42.3)<0.01
Off-site surgery, no. (%)2783 (34.9)2251 (32.9)532 (47.1)<0.01
PVD, no. (%)985 (13.9)812 (13.6)173 (15.5)0.10
Smoking history, no. (%)4804 (62.3)3993 (61.4)811 (67.4)<0.01
Valve disease, no. (%)340 (4.8)280 (4.7)60 (5.4)0.36
Warfarin, no. (%)131 (1.6)105 (1.5)26 (2.1)0.15
Previous MI, no. (%)3260 (41.6)2769 (41.1)491 (44.6)0.03
Previous CABG, no. (%)1270 (15.3)1079 (15.3)191 (15.1)0.89
Previous PCI, no. (%)2727 (33)2309 (32.9)418 (33.3)0.80
Ventilated preprocedure, no. (%)39 (0.5)37 (0.6)2 (0.2)0.17
Q-wave on ECG, no. (%)839 (11.2)712 (11.1)127 (11.9)0.47
Year
2007395 (4.7)355 (5)40 (3.1)<0.01
2008644 (7.7)566 (7.9)78 (6.1)0.03
2009759 (9)635 (8.9)124 (9.7)0.39
2010935 (11.1)788 (11)147 (11.5)0.63
20111098 (13)900 (12.6)198 (15.5)0.01
20121405 (16.7)1168 (16.4)237 (18.5)0.07
20131549 (18.4)1343 (18.8)206 (16.1)0.02
20141632 (19.4)1383 (19.4)249 (19.5)0.97

SD: standard deviation; PVD: peripheral vascular disease; MI: myocardial infarction; PCI: percutaneous coronary intervention; CABG: coronary artery bypass graft; ACS: acute coronary syndrome; NSTEMI: non-ST elevation MI; STEMI: ST-elevation MI.