Tranexamic Acid Dose and Remifentanil Titration in Septorhinoplasty

N/ANot Yet RecruitingNCT07450794

Istinye University90 enrolled

Overview

This prospective observational cohort study aims to investigate whether the weight-based equivalent (mg/kg) of a fixed 1 g dose of tranexamic acid administered during septorhinoplasty is associated with intraoperative remifentanil titration frequency and perceived anesthesiologist workload. Although tranexamic acid is routinely given as a fixed dose, its mg/kg equivalent varies according to patient weight and may influence hemodynamic management during controlled hypotension. The primary outcome is the total number of remifentanil infusion rate adjustments during surgery. Secondary outcomes include total remifentanil consumption and postoperative anesthesiologist workload assessed using the NASA Task Load Index (NASA-TLX).

Study Type

OBSERVATIONAL

Enrollment

Conditions

Anesthesiologist Workload

Interventions

NASA Task Load Index (NASA-TLX)OTHER

Postoperative assessment of anesthesiologist workload using the NASA Task Load Index (raw scoring method), completed immediately after each operation by the attending anesthesiologist.

Medical Language ↔ Plain English

Inclusion Criteria: * Age ≥ 18 years * Elective septorhinoplasty under general anesthesia * Intraoperative administration of fixed 1 g intravenous tranexamic acid as part of routine practice * Controlled hypotension strategy applied intraoperatively * Surgery duration between 60-240 minutes * Complete intraoperative hemodynamic and drug titration records available Exclusion Criteria: * Emergency surgery * Additional major surgical procedure performed in the same session * Known coagulation disorder * Contraindication to tranexamic acid * History of thromboembolic disease * Chronic opioid use or opioid tolerance * Chronic pain syndrome * Regular use of sedatives, benzodiazepines, or CNS depressants * Severe cardiac, renal, or hepatic failure * Uncontrolled hypertension or significant arrhythmia * Preoperative hemoglobin \<10 g/dL * Major intraoperative complication * Incomplete or missing intraoperative data

Outcomes

Primary Outcomes

Intraoperative Remifentanil Titration Frequency

Total number of intraoperative remifentanil infusion rate adjustments (each increase or decrease counted as one intervention) recorded during septorhinoplasty.

Time frame: Intraoperative period (from induction of anesthesia to end of surgery).

Tranexamic Acid Dose and Remifentanil Titration in Septorhinoplasty

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Central Contacts