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

N/ANot Yet RecruitingNCT07353138

Istinye University110 enrolled

Overview

This prospective, observational study investigates the relationship between early oxygen exposure and oxidative stress in adult intensive care unit patients with sepsis or septic shock. Fraction of inspired oxygen (FiO₂) administered during the first 24 hours of ICU admission will be recorded and analyzed in relation to changes in the uric acid/albumin ratio (UAR), a biomarker reflecting oxidative burden and inflammation. Serum uric acid and albumin levels will be measured at baseline and at 24 hours, and the percentage change in UAR will be calculated. Secondary analyses will examine associations between UAR changes, oxygenation indices, and 28-day mortality. The study aims to determine whether higher FiO₂ exposure is associated with increased oxidative stress and to evaluate the potential role of UAR as a clinically accessible marker of oxygen-related oxidative injury in septic ICU patients.

Study Type

OBSERVATIONAL

Enrollment

110

Conditions

Neutrophil-to-Lymphocyte Ratio Septorhinoplasty

Interventions

Observational Study

Not applicable. This is a prospective observational study. No intervention or alteration to standard treatment protocols will be performed. Clinical and laboratory data obtained during routine care, including preoperative hemogram parameters and early postoperative pain scores, will be recorded and analyzed without influencing patient management.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 Years

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

Early Postoperative Pain Severity

early postoperative pain severity, as measured using the Visual Analog Scale (VAS). 0: no pain, 10 worst pain

Time frame: Within the first 60 minutes after admission to the Post-Anesthesia Care Unit (PACU).