Regional anesthesia and pain medicine
-
Reg Anesth Pain Med · Mar 2022
Randomized Controlled TrialPreoperative pericapsular nerve group (PENG) block for total hip arthroplasty: a randomized, placebo-controlled trial.
We hypothesized that the addition of a preoperative pericapsular nerve group (PENG) block to intra-articular local anesthetic injection would improve analgesia after total hip arthroplasty. ⋯ The addition of a preoperative PENG block to intra-articular injections of local anesthetic provides a limited benefit to postoperative analgesia in the recovery room with no discernible benefits thereafter.
-
Reg Anesth Pain Med · Mar 2022
Effect of superior trunk block on diaphragm function and respiratory parameters after shoulder surgery.
The interscalene brachial plexus block has been used effectively for intraoperative and postoperative analgesia in patients undergoing shoulder surgery, but it is associated with high rates of diaphragmatic dysfunction. Performing the block more distally, at the level of the superior trunk, may reduce the incidence of phrenic nerve palsy. We hypothesized that superior trunk block would result in diaphragmatic paralysis rate of less than 20%. ⋯ Although injection of local anesthetic at the superior trunk level is associated with less diaphragmatic paralysis compared with traditional interscalene block, a significant portion of patients will continue to have ultrasonographic and clinical evidence of diaphragmatic weakness or paralysis.