The pericapsular nerve group (PENG) block targets the nerves innervating the anterior hip surface; however, few studies on this technique are currently available. We investigated the effects of the PENG block on postoperative opioid consumption after a hip surgery. This was a randomized, double-blind, placebo-controlled study conducted at a single institution. Fifty patients undergoing hip surgery were randomly allocated, 25 in each group, to receive a PENG block either using 25 mL of 0.5% ropivacaine (PENG group) or 25 mL of saline (control group). The primary outcome was the total opioid consumption 24 h postoperatively. The secondary outcomes were postoperative pain scores, time to first opioid demand, sensory block efficiency, quadriceps muscle strength, complications, and patient satisfaction. Compared with those in the control group, patients in the PENG group had a significantly lower total opioid consumption 24 h postoperatively (440.72 ± 242.20 μg vs. 611.07 ± 313.89 μg, P = 0.037) and significantly lower pain scores at 30 min postblock and 6 postoperatively ( P < 0.001 and P < 0.001 , respectively). The time to first opioid demand was significantly shorter in the control group than in the PENG group P < 0.001 . Sensory block effectiveness was better in the PENG group 30 min postblock and 6 and 12 h postoperatively than in the control group. Patient satisfaction was also better in the PENG group than in the control group. There were no differences in the other outcomes. The PENG block reduced the total opioid consumption in the first 24 h after hip surgery with no significant effects on quadriceps muscle strength and complication rate. This study was registered at the Korea Clinical Research Information Service (cris.nih.go.kr; Reg. No. KCT0006348) on July 16, 2021.

Tracheal tumor resection and reconstruction is the primary treatment for tracheal tumors. The trachea is the surgical site as well as an important channel to ensure ventilation and maintain oxygenation during surgery. In this report, we describe the successful management of an upper tracheal tumor in a 50-year-old patient. The tumor was situated approximately 2-3 cm below the vocal cords, occluding the tracheal lumen by 80%. Conventional orotracheal intubation was expected to be impossible, and the patient was managed with an I-Gel supraglottic airway for mechanical ventilation with the assistance of venovenous extracorporeal membrane oxygenation (VV ECMO). After securing tracheal intubation via the tracheostomy site, VV ECMO was weaned off, and mechanical ventilation was changed to tracheal intubation. Eventually, tracheal tumor resection and reconstruction were successfully performed under general anesthesia. No specific events occurred during anesthetic management. Careful preoperative planning and good teamwork made the procedure possible without complications.

Background: Remimazolam is a novel benzodiazepine with fast onset and short half-life. We compared the effects of remimazolam and propofol on recovery profiles for general anesthesia in patients undergoing laparoscopic cholecystectomy. Methods: We randomly assigned 108 patients to either a remimazolam (n=54) or propofol (n=54) group. Remimazolam and propofol were used for induction and maintanance of anesthesia. Following anesthesia, we recorded the time until an Aldrete score of 9 was achieved. The time to reach a Modified Observer’s Assessment of Alertness/Sedation (MOAA/S) score of 2 and the time from the end of anesthesia to eye opening time, recovery time of orientation, time to spontaneous breathing, extubation time, and the time required for analgesics were measured. Heart rate, blood pressure, and bispectral index were assessed before, during, and after pneumoperitoneum. Results: We included 101 patients in the analysis. In the remimazolam group, it took longer to reach an Aldrete score of 9 after the drug infusion ended (P = 0.031). There was no difference in the time to reach MOAA/S 2 between the two groups. The time to eye opening, recovery time of orientation, and time required for analgesics were longer and heart rate was higher in the remimazolam group. Neither blood pressure, nor extubation time differed between groups.Conclusions: Remimazolam and propofol provided safe induction and maintenance of anesthesia in patients undergoing laparoscopic cholecystectomy. The recovery time from anesthesia with remimazolam is longer than that with propofol. Fewer hemodynamic changes were observed with remimazolam, but further studies are needed.

Remimazolam is a newly approved benzodiazepine characterized by rapid onset, predictable maintenance, fast recovery, and availability of a reversal agent. We describe four cases of patients who received monitored anesthesia care with remimazolam for gynecological day surgery.

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