None
Conditions
Interventions
Observation group:None
Sponsors
The Affiliated Hospital of Southwest Medical University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1.during the procedure and complete intraoperative arterial blood gas analysis records retained. 2.The surgical type refers to patients who underwent elective or time-limited open abdominal surgery in the operating room of the Affiliated Hospital of Southwest Medical University between January 2020 and January 2026.
Exclusion criteria
Exclusion criteria: 1. Emergency surgery, laparoscopic or robot-assisted surgery. Intraoperative use of life support equipment such as extracorporeal circulation. 2. Severe end-stage organ dysfunction (such as end-stage renal disease requiring regular dialysis, Child-Pugh C grade cirrhosis, or NYHA class IV heart function). 3. Preoperative confirmed metabolic acidosis or alkalosis (judged by admission blood gas analysis). 4. Pregnant or lactating women. 5. Other circumstances deemed unsuitable for participation in the study by the investigator (e.g., expected survival period <30 days, inability to comply with follow-up). 6. Severe lack of clinical data.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pulmonary infection;Acute renal failure ; | — |
Secondary
| Measure | Time frame |
|---|---|
| Dead;Length of stay in the ICU; | — |
Countries
China
Contacts
Public ContactWang Xiaobin
The Affiliated Hospital of Southwest Medical University
Outcome results
None listed