Effect of bupivacaine concentration on ultrasound-guided pericapsular group nerve block efficacy in hip surgery patients: comparative, randomized, double-blinded clinical trial.

Background: The pericapsular nerve group (PENG) block offers effective postoperative pain relief following hip fracture surgery. This research investigated three doses of bupivacaine, all administered in the same total volume, for performing ultrasound-guided PENG blocks during hip fracture procedures.

Methods: This randomized, double-blinded clinical trial was conducted on 135 patients aged between 18 and 70 years of both sexes who underwent hip fracture surgeries.

Quantitative OCT Angiography Assessment of the Effect of Peribulbar Anesthesia on Retinal Microvasculature in Primary Open-Angle Glaucoma Patients Undergoing Cataract Surgery.

Objective: To assess the effect of peribulbar anesthesia on retinal microvasculature in primary open-angle glaucoma (POAG) patients undergoing cataract surgery using OCT Angiography.

Participants: Forty-nine patients undergoing cataract surgery were divided into two groups. Group I included patients with no history of glaucoma, while group II included patients previously diagnosed as POAG with controlled IOP.