Comparison of Erector Spinae Plane Block and Intravenous Patient-controlled Analgesia in Percutaneous Nephrolithotomy

ASA I-III patients aged 18-65 years who underwent percutaneous nephrolithotomy at Van Yüzüncü Yıl University Faculty of Medicine were included in the study. The patients were informed about the study during the preoperative evaluation. In the randomized single-blind closed-envelope study, 30 patients ineach group and a total of 60 patients were included. Standard general anesthesia procedure was applied to all patients. Standard general anesthesia procedure was applied to all patients. Perioperative hemodynamic monitoring was performed. In patients who underwent general anesthesia, after the surgical procedure was completed, after sterility was ensured for the ESP group while the patient was in the lateral position for the ESPB procedure, the linear 10-18 MHz USG probe (Esaote MyLab 30, Geneva, Italy) was placed between two transverse processes in the paramedian plane and increased from 1mg/kg to %1 at the T7 level. 20 ml of 0.5 bupivacaine (Buvasin®, Vem, Istanbul, Turkey) + 2% arrhythmic residual SF from 1mg/kg was administered. For patients in the PCA group, 200 mg of tramadol was placed in 100cc of 0.9% NaCl. Set to PCA device. A 50mg loading dose was administered 10 minutes before the patient was extubated. After extubating, a bolus dose of 20 mg was started, with a 30-minute lock-in time, and an infusion dose of 5mg/hour. The 4-hour maximum limit was set to 200 mg. VAS score, need for additional analgesia, patient satisfaction (Likert scale), mobilization times and vital signs were recorded at 30 minutes, p1, 3, 6 and 12 hours after the operation.