Table 1 Patient and aneurysm characteristics
Variable | LVIS stent group (n = 142) | Laser-cut stent group (n = 93) | P value |
|---|---|---|---|
Age, years | 59.1 ± 12.0 | 60.0 ± 12.8 | 0.560 |
Female | 99(69.7) | 65(69.9) | 0.977 |
Aneurysm size, mm | 5.0 ± 2.6 | 5.1 ± 2.6 | 0.827 |
Neck size, mm | 3.5 ± 1.5 | 3.7 ± 1.4 | 0.284 |
Dome-to-neck ratio | 1.5 ± 0.4 | 1.4 ± 0.5 | 0.178 |
Hypertension | 81(57.0) | 57(61.3) | 0.518 |
Diabetes mellitus | 15(10.6) | 8(8.6) | 0.621 |
Coronary heart disease | 7(4.9) | 7(7.5) | 0.411 |
Smoking history | 14(9.9) | 9(9.7) | 0.963 |
pulmonary infection | 12(8.5) | 9(9.7) | 0.747 |
Location | |||
 Internal carotid artery | 21(14.8) | 14(15.1) | 0.859 |
 Middle cerebral artery | 15(10.6) | 8(8.6) | |
 Anterior communicating artery | 29(20.4) | 15(16.1) | |
 Posterior communicating artery | 62(43.7) | 47(50.5) | |
 Posterior circulation | 15(10.6) | 9(9.7) | |
Irregular shape | 71(50.0) | 45(48.4) | Â |
Bifurcation | 94(66.2) | 60(64.5) | 0.791 |
Multiple aneurysms | 34(23.9) | 27(29.0) | 0.384 |
Hunt-Hess grade | |||
 I | 83(58.5) | 46(49.5) | 0.368 |
 II | 36(25.4) | 29(31.2) | |
 III | 14(9.9) | 14(15.1) | |
 IV | 9(6.3) | 4(4.3) | |
Modified Fisher grade | |||
 1 | 32(22.5) | 16(17.2) | 0.818 |
 2 | 85(59.9) | 59(63.4) | |
 3 | 22(15.5) | 16(17.2) | |
   4 | 3(2.1) | 2(2.2) | |
Treatment timing | |||
 ≤ 3 days | 100(70.4) | 59(63.4) | 0.403 |
 3–14 days | 38(26.8) | 29(31.2) | |
 14–28 days | 4(2.8) | 5(5.4) | |
Surgical procedure | |||
 External ventricular drainage | 6(4.2) | 6(6.5) | 0.548 |
 Ventriculoperitoneal shunt | 0(0.0) | 1(1.1) | 0.396 |
 Decompressive craniectomy | 6(4.2) | 2(2.2) | 0.484 |