(A) Use of CSF drainage depending on type of open TAAA repair. Type I: regularly, 76.6%; occasionally, 21.3%; never, 2.1%; type II: regularly, 91.5%; occasionally, 8.5%; type III: regularly, 76.6%; occasionally, 23.4%; type IV: regularly, 34.0%; occasionally, 44.7%; never, 21.3%; type V: regularly, 59.7%; occasionally, 38.3%; never, 2.1%. (B) Use of CSF drainage depending on type of endovascular TAAA repair. Type I: regularly, 51.0%; occasionally, 46.9%; never, 2.1%; type II: regularly, 77.6%; occasionally, 22.4%; type III: regularly, 49.0%; occasionally, 51.0%; type IV: regularly, 20.4%; occasionally, 59.2%; never, 20.4%; type V: regularly, 40.8%; occasionally, 53.1%; never, 6.1%. (C) Use of motor evoked potentials depending on type of open TAAA repair. Type I: regularly, 82.8%; occasionally, 17.2%; type II: regularly, 96.5%; occasionally, 3.5%; type III: regularly, 86.2%; occasionally, 6.9%; never, 6.9%; type IV: regularly, 41.4%; occasionally, 31.0%; never, 27.7%; type V: regularly, 79.3%; occasionally, 17.2%; never, 3.5%. (D) Use of motor evoked potentials depending on type of endovascular TAAA repair: type I: regularly, 53.8%; occasionally, 46.2%; type II: regularly, 69.2%; occasionally, 30.8%; type III: regularly, 53.8%; occasionally, 46.2%; type IV: regularly, 38.5%; occasionally, 30.8%; never, 30.8%; type V, regularly; 46.1%; occasionally, 46.2%; never, 7.7%. CSF: cerebral spinal fluid; MEP: motor evoked potential; TAAA: thoracoabdominal aortic aneurysm.