Effect of subarachnoid anesthesia combined with propofol target-controlled infusion on blood loss and transfusion for posterior total hip arthroplasty in elderly patients.

Background: Intravertebral and general anesthesia (GA) are two main anesthesia approaches but both have defects. This study was aimed to evaluate the effect of subarachnoid anesthesia combined with propofol target-controlled infusion (TCI) on blood loss and transfusion for total hip arthroplasty (THA) in elderly patients in comparison with combined spinal-epidural anesthesia (CSEA) or GA.

Methods: Totally, 240 patients (aged ≥65 years, American Society of Anesthesiologists [ASA] I-III) scheduled for posterior THA were enrolled from September 1st, 2017 to March 1st, 2018.

[Comparing the analgesic efficacy of continuous femoral nerve blockade and continuous intravenous analgesia after total knee arthroplasty].

Objective: To compare the analgesic efficacy of continuous femoral nerve blockade (CFNB) and continuous intravenous analgesia (CIA) after total knee arthroplasty (TKA).

Methods: 126 patients undergoing TKA under combined epidural-spinal anesthesia were randomized to receive either a femoral infusion of ropivacaine 0.2% (median infusion rate 5 ml/h) (n = 63) or an intravenous infusion of fentanyl 30 µg/kg (2 ml/h) (n = 63).