Please assess the completion status of the following clinical trial:

Trial Title: The Effects of Anesthesia on Patients Undergoing Surgery for Repair of a Thoracoabdominal Aneurysm.

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: OTHER
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* age 21-100 years of age~* Patients presenting for surgical repair of a thoracoabdominal aneurysm~* Insertion of a CSF spinal drain for clinically indicated reason~Exclusion Criteria:~* Patients with pre-existing delirium~* Inability to speak and understand English~* Severe hearing impairment, resulting in inability to converse~* Pregnancy. Pregnancy status will be assessed using a serum pregnancy test during preoperative evaluation as part of the standard of care.

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: 100 Years
- Healthy Volunteers: f

Study Arms:
- Open repair of thoracoabdominal aneurysms (Type: NO_INTERVENTION): These will be patients undergoing an open repair of thoracoabdominal aneurysms with or without cardiopulmonary bypass. The will be observational only.
- Stent graft repair of thoracoabdominal aneurysms isoflurane (Type: ACTIVE_COMPARATOR): These patients are patients receiving repair of thoracoabdominal aneurysms using stent grafts. These patients will be randomized to receive isoflurane as their primary anesthetic.
- Stent graft repair of thoracoabdominal aneurysms propofol (Type: ACTIVE_COMPARATOR): These patients are patients receiving repair of thoracoabdominal aneurysms using stent grafts. These patients will be randomized to receive propofol as their primary anesthetic.

Based on this trial design, predict the completion outcome and termination type (if applicable).