Please assess the completion status of the following clinical trial:

Trial Title: Intraoperative Pleth Variability Index (PVI) Variability

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Neurosurgical patients for tumor resection~* neurointerventional patients~* general anesthesia with mechanical ventilation~* communicates in english (consent)~* over 18 years of age~Exclusion Criteria:~* unable to sign consent~* less than 18 years of age

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- neurosurgical patients (Type: None): Neurosurgical patients undergoing craniotomies for tumor. 25 subjects
- Neurointerventional patients (Type: None): Patients undergoing neurointerventional procedures under general anesthesia. 25 subjects

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