Please assess the completion status of the following clinical trial:

Trial Title: Prevention of Perioperative Acute Renal Failure

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* All patients who are undergoing elective abdominal surgery after appropriate information of the study, and its possible risks that may arise therefrom and that at any time to refuse their cooperation, give a written consent to participate in the study.~* Patients who at the time of the interview have an ASA between 2 and 4.~* Patients with chronic kidney failure mild moderate (serum creatinine between 1.5 and 3.0 mg / dl) can be included.~Exclusion Criteria:~* Chronic kidney diseases with serum creatinine higher than 3.0 mg /DL~* Laparoscopic abdominal surgery~* ASA 1 and ASA 5 patients.~* Patients with cardiac insufficiency, ascites and respiratory insufficiency~* Diastolic hypertension \> 100 mmHg

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

Study Arms:
- Isotonic saline (Type: EXPERIMENTAL): Isotonic saline
- No treatment (Type: NO_INTERVENTION): Habitual therapy

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