This study was designed to determine the association between preoperative and postoperative hypoalbuminemia and AKI in older age hip fracture surgeons, to determine which period of hypoalbuminemia contributes more to AKI development, the incidence of AKI according to anesthesia type, the presence of other factors affecting AKI development, the duration of hospitalization and cost- to be investigated.

Inclusion Criteria:

• patients with femur fracture surgery
• 65 years and over
• Patients with ASA I - IV physical condition
• patients with spinal anesthesia or peripheral nerve block

Exclusion Criteria:

• Patients undergoing emergency surgery
• patients with preoperative serum creatinine (sCr) level> 1.5 mg / dl
• patients with low serum albumin levels in both preoperative and postoperative periods
• patients receiving preoperative ventilator care
• patients with spinal anesthesia or peripheral nerve block contraindications (coagulopathies, local infection at the puncture site, spot infection) or nonsteroidal antiinflammatory drug (NSAID)

ASA I - IV physical status and under spinal anesthesia or peripheric nerve block, 160 patients over 65 years of age undergoing femoral fracture surgery between 01.01.2018 - 01.07.2018