| Normal anatomy | High bifurcations | RA loops | Tortuous RA | Other anomalies |
Patients, (n) | 1321 | 108 | 35 | 30 | 39 |
Women (%) | 28 | 29Ɨ | 49ǂ | 50ǂ | 33Ɨ |
Age (years), mean (SD) | 63.0(11.0) | 65.5(10.8)Ɨ | 69.8(10.4)§ | 72.2(7.7)§ | 65.1(11.8)Ɨ |
Procedural duration (min), mean (SD) | 41.3(21.5) | 45.2(23.2)Ɨ | 49.4(17.1)Ɨ | 41.0(12.7)Ɨ | 42.1(19.2)Ɨ |
Fluoroscopy time (min), mean (SD) | 9.7(8.0) | 9.3(6.5)Ɨ | 10.0(6.6)Ɨ | 10.7(6.5)Ɨ | 9.6(7.1)Ɨ |
Failures (%)** | 0.9 | 4.6Ɨ | 37.1§ | 23.3¶ | 12.9%Ɨ |