This record is a duplicate entry created in error. The correct study is registered under NCT07416773. The study was never initiated.

This prospective observational study aims to evaluate the association between routinely applied anesthesia techniques and postoperative sleep quality in adult patients undergoing septoplasty. Patients will receive either total intravenous anesthesia or inhalational anesthesia according to standard clinical practice, without any intervention by the investigators. Postoperative sleep quality will be assessed using the Richards-Campbell Sleep Questionnaire on postoperative days 7 and 15. Secondary outcomes include postoperative pain intensity, opioid consumption, and postoperative nausea and vomiting.

This study is designed as a prospective, observational cohort study conducted at a single tertiary care center. The study population will consist of adult patients undergoing elective septoplasty for nasal septum deviation. All patients will receive general anesthesia as part of routine clinical care, either using total intravenous anesthesia (TIVA) or inhalational anesthesia, according to the anesthesiologist's standard practice. No randomization or study-related intervention will be performed.

Eligible patients will be enrolled consecutively after providing written informed consent. Demographic data, clinical characteristics, American Society of Anesthesiologists (ASA) physical status, duration of surgery, anesthesia technique, perioperative opioid consumption, and postoperative complications will be recorded prospectively using hospital electronic medical records and standardized case report forms.

Postoperative sleep quality will be evaluated using the Richards-Campbell Sleep Questionnaire (RCSQ), a validated patient-reported outcome measure. Follow-up assessments will be conducted via telephone interviews on postoperative days 7 and 15. Pain intensity will be assessed using the Numerical Pain Rating Scale, and postoperative nausea and vomiting will be evaluated using a standardized ordinal scale.

Inclusion Criteria:

• - Adults aged 18 years and older
• American Society of Anesthesiologists (ASA) physical status I-III
• Scheduled for elective septoplasty under general anesthesia
• Willing and able to provide written informed consent
• Agree to postoperative follow-up telephone interviews on postoperative days 7 and 15

Exclusion Criteria:

• - ASA physical status IV or V
• Age younger than 18 years
• Severe obstructive sleep apnea confirmed by polysomnography and requiring active CPAP therapy
• Significant cognitive impairment, delirium, or active psychiatric disorder preventing reliable questionnaire completion
• Chronic use of opioids, benzodiazepines, hypnotics, sedatives, or antipsychotic medications (≥3 days per week within the last month)
• Alcohol or substance abuse
• Major intraoperative complications, unplanned intensive care unit admission, or reoperation within the first 24 hours
• Pregnancy or breastfeeding
• Severe systemic disease or unstable cardiopulmonary condition

The study population will consist of adult patients aged 18 years and older who are scheduled to undergo elective septoplasty under general anesthesia. Patients will receive either total intravenous anesthesia or inhalational anesthesia according to routine clinical practice. Only patients who provide written informed consent and agree to postoperative follow-up assessments will be included. The study population will be recruited from a single tertiary care hospital.