Preoperative Neutrophil-to-Lymphocyte Ratio and Early Postoperative Pain After Septorhinoplasty

Inclusion Criteria: * Adult patients aged 18-65 years * Patients undergoing elective septorhinoplasty * Surgery performed under general anesthesia * Complete recording of early postoperative VAS pain scores, Aldrete scores, NUDES scores, and vital signs in the Post-Anesthesia Care Unit (PACU) * Preoperative complete blood count (hemogram) performed within 30 days prior to surgery * Clinical records and hospital information system data that are complete, accessible, and adequate for analysis Exclusion Criteria: * Patients undergoing emergency surgery * Septorhinoplasty combined with additional major surgical procedures (e.g., advanced ENT or maxillofacial surgery) * Presence of known hematological disease, active infection, immunosuppressive therapy, or advanced liver or renal failure * Chronic opioid use or regular analgesic medication use in the preoperative period * History of significant clinical events between the preoperative hemogram and surgery that could alter inflammatory status (e.g., infection, hospitalization, additional surgery) * Incomplete or missing data regarding preoperative hemogram parameters or PACU pain scores