Please assess the completion status of the following clinical trial:

Trial Title: the Effect of Dopamine on Mechanical Ventilation Induced Lung Injury

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:~* Patients inclusion criteria: undergo elective lobectomy with general anesthesia and mechanical ventilation; classified as physical status I to III according to the American Society of Anesthesiologists Physical Status Classification System; Written informed consent is approved.~Exclusion Criteria:~* Distant metastases: recent anaesthetics or mechanical ventilation treatment；children；women during pregnancy or lactation; being involved in other clinical subjects.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- ventilation (Type: None): patients undergoing selective operation with general anesthesia(GA) and mechanical ventilation(MV)

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