The effects of general vs spinal anesthesia on frontal cerebral oxygen saturation in geriatric patients undergoing emergency surgical fixation of the neck of femur

Neuroaxial versus general anaesthesia in geriatric patients for hip fracture surgery: does it matter?

“…Perioperative respiratory outcome was reported either as hypoxia [2,5,7,27,45] or as arterial carbon dioxide partial pressure, arterial oxygen partial pressure and/or oxygen saturation [36,39,55,61]. Patients with regional anaesthesia do not undergo airway instrumentation.…”

“…However, only the early postoperative period following regional anaesthesia for hip fracture repair is superior with regard to the incidence of postoperative hypoxia as seen in arterial oxygen tensions or clinically (evidence level I-III; I: n=2) [2,5,7,27,36,37,45]. Therefore, some authors reported no significant difference between the techniques (evidence level I-III; I: n=1) [39,48,55,56,61,68]. It is unknown, whether the incidence of postoperative hypoxia has any influence on long-term outcome of geriatric patients.…”

Effects of Fentanyl with Levobupivacaine on Cognitive Functions and Cerebral Oxygenation

“…In their study where they compared the effects of spinal and general anesthesia on cerebral oxygen saturation in patients undergoing emergency operations for femur neck fracture, Hoppenstein et al (21) found that cerebral oxygen saturation was lower in patients undergoing spinal anesthesia. They reported that this may be due to patient-related factors rather and independent from the anesthesia technique.…”

Effects of maternal supplementary oxygen on the newborn for elective cesarean deliveries under spinal anesthesia

“…The effect of general versus spinal anesthesia on cerebral oxygen saturation by NIRS was investigated in geriatric patients undergoing emergency surgical fixation of the neck of the femur [10]. In that study, spinal anesthesia was associated with a higher incidence of cerebral desaturation even though 3 L/min supplementary oxygen was administered by nasal cannula [10].…”

“…Cerebral oximetry, which is a NIRS technology that estimates real-time measures of brain oxygenation (regional cerebral oxygen saturation: rSO 2 ) both non-invasively and continuously without requiring pulsatility and flow, has been utilized in different types of surgical anesthesia except obstetrics [9][10][11]. To the best of our knowledge, NIRS has not been used to show the effect of maternal supplementary oxygen on fetal oxygenation for neonatal monitorization even though it might be a faster clinical evaluation than both the umbilical cord blood gas analysis and Apgar scores in the obstetric anesthesia setting.…”