About this trial

This study evaluates the anesthetic-sparing and renal protection effects of minimal-flow sevoflurane anesthesia combined with multimodal analgesia using dexmedetomidine, ketamine, and lidocaine in head and neck cancer patients undergoing free flap microvascular surgery. The 2x2 factorial randomized controlled trial aims to compare sevoflurane usage and renal function changes with different fresh gas flow rates and multimodal analgesia.

Eligibility criteria

Qualifiers

Age 18-99 years

Scheduled for head and neck cancer tumor resection and free flap reconstruction surgery

Disqualifiers

Preoperative tracheostomy

History of previous head and neck cancer tumor resection

Anemia (hematocrit <30% or recent transfusion)

Hypertension on ACEI/ARB medications

Trial design

Treatments tested in this trial

  • Multimodal analgesia using dexmedetomidine-ketamine-lidocaine mixture
  • Minimal flow sevoflurane

Treatment groups

60 Participants
are divided into 4 treatment groups

Locations

This trial has no locations

Sponsors and collaborators

National Taiwan University Hospital

Lead sponsor