About this trial
This prospective observational study aims to evaluate the neurological safety of controlled hypotension (Mean Arterial Pressure 50-65 mmHg) during elective rhinoplasty. The investigators will assess whether this standard intraoperative hypotensive strategy causes cellular stress by measuring serum Glial Fibrillary Acidic Protein (GFAP) levels and early postoperative cognitive changes using the Montreal Cognitive Assessment (MoCA) test.
Eligibility criteria
Qualifiers
Scheduled for elective rhinoplasty or septorhinoplasty under general anesthesia.
ASA physical status I or II.
Literate and willing to provide written informed consent.
Disqualifiers
History of neurological (e.g., cerebrovascular event, epilepsy) or psychiatric diseases.
Total septal reconstruction requiring costal (rib) cartilage grafts.
Expected surgical duration exceeding 3 hours.
Preoperative severe cognitive impairment.
Trial design
Treatments tested in this trial
- Controlled Hypotension (Standard of Care)