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. 2015 Mar 28;2(1):e000228. doi: 10.1136/openhrt-2014-000228

Table 1.

Demographics and CTO PCI details

Variable Pre-proctored/ non-proctored group
N=232
Post-proctored group
N=355
Significance
(p Value)
Age (mean±SD) 65±11.55 65±11.36 1.00
Female gender (%) 51 (22%) 63 (17.7%) 0.24
HTN (%) 164 (70.7%) 246 (69.3%) 0.78
DM (%) 52 (22.4%) 80 (22.5%) 1.00
Hypercholesterolaemia (%) 81 (34.9%) 107 (30.1%) 0.24
Previous CVA (%) 15 (6.5%) 19 (5.4%) 0.47
Previous CABG (%) 22 (9.5%) 58 (16.3%) 0.019
Renal impairment (creatinine ≥200 mmol/L) (%) 4 (1.7%) 9 (2.5%) 0.58
Smoker (%) 76 (32.7%) 118 (33.2%) 0.92
Stable angina (%) 188 (81%) 316 (89%) 0.008
Success overall (%) 144/232 (62.1%) 275/355 (77.5%) <0.0001
JCTO≥2* (%) 115/229 (50.2%) 205/354 (57.9%) 0.07
Success in JCTO≥2 (%) 57/115 (49.6%) 145/205 (70.7%) 0.0003
Previous CTO PCI failure (%) 27 (11.6%) 104 (29.3%) <0.001
Success in previous failure 12/27 (44.4%) 78/104 (75%) 0.004
Complications (%) 15/232 (6.5%) 30/354 (8.5%) 0.42
Dual access (%) 67/232 (28.9%) 242/355 (68.2%) <0.0001
Contrast load (mL)* 254±105.8† 299±118.4† <0.0001
Fluoroscopy dose (cGy/m2)* 10 400.5±7589.32‡ 16 386.1±19 750.8‡ <0.0001
Screening time (min)* 39.06±18.45§ 42.28±25.07§ 0.096

*Missing values not replaced.

†Data for 228 patients in non-proctored/pre-proctored and 346 patients in proctored group.

‡Data for 228 non-proctored/pre-proctored and 342 post-proctored patients.

§Data for 229 pre-proctored/non-proctored and 343 post-proctored patients.

CABG, coronary artery bypass grafting; CTO, chronic total occlusion; CVA, cerebrovascular accident; DM, diabetes mellitus; HTN, hypertension; JCTO, Japanese CTO; PCI, percutaneous coronary intervention.