Comparison of Hemodynamic Changes during General Anesthesia with Low-dose Isoflurane or Propofol in Elderly Patients Undergoing Upper Femoral Surgery

Surgery of upper part of femor in elderly patients can be due to the fracture of femoral neck, shaft and arthroplasty. Hemodynamic changes and complications of the anesthesia are among the major concerns. The aim of this study was to compare the hemodynamic changes in low dose isoflurane with propofol in upper femoral surgeries in elderly patients. This prospective clinical trial study was done on 60 patients over 65 year-old elderly patients with ASA physical status of I and II that were candidate for upper femoral surgery in two groups (inhalational: isoflurane 0.5-0.6 MAC) and (total intravenous anesthesia with propofol 50-100 mic/kg/min). Hemodynamic changes were compared in these groups with the same anesthetic depth (HR-SBP-DBP-MBP-SaO₂). There was no significant difference in heart rate, age or sex between two groups. In isoflurane group SBP on 20 and 25th minutes and DBP and MBP on 20, 25 and 35th minutes were significantly higher than propofol group. In propofol group SaO₂ was significantly more than isoflurane group on induction, start of surgery and on 5, 25, 35 and 45th minutes of surgery. In anesthesia with the same Bi-Spectral Index, isoflurane provides more stable hemodynamic parameters than propofol.