Please assess the completion status of the following clinical trial:

Trial Title: Comparison of Oxygen Saturation During Different Intraoperative Positions

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Patients undergoing lateral decubitus lung surgery or port-access.~* American Society of Anesthesiologists Physical Status (ASA) II or III.~* Age between 18-80 years.~* Patients willing to sign consent.~Exclusion Criteria:~* Pre-existing interstitial lung disease.~* Pre-existing obstructive airway disease.~* Inability or unwillingness of study participant to give written informed consent.~* Patients expected to have a difficult intubation for anatomical reasons.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- lung surgery (Type: ACTIVE_COMPARATOR): An initial baseline arterial blood gas (ABG) will be taken before anesthesia induction while breathing room air.~A second ABG will be taken on FIO2=0.5 during double lung ventilation. Then 3 ABG's will be consecutively determined each 15 min once OLV is initiated. PaO2/FIO2 is calculated on every ABG's measurement. If necessary, measures are taken to maintain oxygenation during one lung ventilation.
- port-access cardiac surgery (Type: ACTIVE_COMPARATOR): An initial baseline arterial blood gas (ABG) will be taken before anesthesia induction while breathing room air.~A second ABG will be taken on FIO2=0.5 during double lung ventilation. Then 3 ABG's will be consecutively determined each 15 min once OLV is initiated. PaO2/FIO2 is calculated on every ABG's measurement. In the port-access group, FIO2 is maintained on 1 after the stopping of the ECC, so PaO2 will become our only indicator for oxygenation. If necessary, measures are taken to maintain oxygenation during one lung ventilation.

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