Preoperative anemia and intraoperative blood transfusion
Conditions
Interventions
Case group:None. Patients undergoing intraoperative red blood cell transfusion
Control group:None. Patients who did not receive red blood cell transfusion during the operation
Sponsors
Jintang County first People's Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 100 Years
Inclusion criteria
Inclusion criteria: Case group: 1.Adult patients (>=18 years of age) undergoing surgical treatment between 2022 and 2025 2.Red blood cell transfusion during the operation (according to anesthesia records or blood bank records). 3.Hemoglobin (Hb) levels were measured 48 hours before surgery. Control group: 1.Did not receive any transfusion of blood products during the operation. 2. Matched to case group: type of surgery (e.g., hepatobiliary, gastrointestinal, orthopaedic), estimated blood loss (+-20%), surgical urgency (elective/emergency).
Exclusion criteria
Exclusion criteria: 1. Preoperative blood transfusion or erythropoietin treatment. 2 .Intraoperative blood loss >2000 mL (to avoid interference with extreme blood loss). 3 . Lack of data (such as preoperative Hb detection, unclear blood transfusion records). 4. Patients with diseases of the blood system or coagulation dysfunction.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| hemoglobin; | — |
Secondary
| Measure | Time frame |
|---|---|
| Demographic characteristics;Combined underlying diseases;Coagulation function;Iron metabolism index;Type of surgery;Operation duration;Intraoperative blood loss;Intraoperative infusion volume;Preoperative iron therapy; | — |
Countries
China
Contacts
Public ContactQu Yang
Jintang County first People's Hospital
Outcome results
None listed