Total Intravenous Anesthesia (TIVA) vs. Inhaled Anesthesia for Endoscopic Sinus Surgery.
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|ClinicalTrials.gov Identifier: NCT01214057|
Recruitment Status : Terminated (the study was terminated for patient recruitment difficulty and interim power analysis)
First Posted : October 4, 2010
Last Update Posted : May 20, 2013
|Condition or disease||Intervention/treatment|
|Chronic Rhinosinusitis.||Drug: Propofol and Remifentanyl Drug: Sevoflurane and Remifentanyl|
Show Detailed Description
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||23 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Double (Participant, Investigator)|
|Official Title:||Preliminary Study to Assess the Effects of Total Intravenous Anesthesia With Propofol/Remifentanyl Compared to Sevoflurane/Remifentanyl for Endoscopic Sinus Surgery: Novel Approach.|
|Study Start Date :||May 2010|
|Primary Completion Date :||October 2012|
|Study Completion Date :||October 2012|
Experimental: Total Intravenous Anesthesia
Total Intravenous Anesthesia (TIVA) with propofol and remifentanyl
Drug: Propofol and Remifentanyl
Anesthesia will be induced with lidocaine 0.5 mg kg, propofol infusion at 250 mcg/kg/min (to reduce visual bias of propofol infusion) and total volume infused will be adjusted for an induction dose of 2-3 mg/kg before bolus of muscle relaxant, rocuronium 0.5 mg kg in both SR and PR groups. Remifentanil infusion will be started at a rate of 0.4 mcg/kg/min 1-2 minutes before the propofol infusion and a 100 ml 0.9% normal saline bag will be used to blind surgeons in the sevoflurane group. The target mean arterial blood pressure (MAP) will be maintained at 70-80 mm Hg by adjusting the propofol concentration within their range (100-150 mg ml for propofol) according to the anaesthesiologist's judgement and by surgeon request. If this failed, the remifentanil rate will be adjusted by 0.05 mg kg min.
Active Comparator: Inhaled Anesthesia
Inhaled anesthesia with sevoflurane and remifentanyl.
Drug: Sevoflurane and Remifentanyl
Sevoflurane 1-3% will be administered in group SR, and the infusion of propofol will be stopped. After intubation remifentanil infusion will be changed to 0.2 mcg/kg/min. The target mean arterial blood pressure (MAP) will be maintained at 70-80 mm Hg by adjusting the sevoflurane concentration within their range (between 1-3 vol% for sevoflurane) according to the anaesthesiologist's judgement and by surgeon request.If this failed, the remifentanil rate will be adjusted by 0.05 mg kg min.In order to limit the amount of fluids remifentanil wil be diluted at a concentration of 4 mg in 100 ml.
- Bleeding [ Time Frame: upto 1 day ]Blood loss will be measured by counting the volume in the collection canisters and substracting the volume of irrigation used intraoperatively. The Neptune Waste Management System will be used for this purpose. This is a closed suction system that digitally counts the amount of fluid suctioned.
- Surgical Field Visualization [ Time Frame: upto 1 day ]The surgical grade score will be based on the Boezaart surgical risk assessment score. This is an inexpensive, reliable, and sensitive tool to rapidly evaluate intraoperative bleeding in ESS. The score of the operative field will be compared between the groups.
- Assess platelet function [ Time Frame: upto 1 day ]Thromboelastography-Platelet Mapping will be performed on each patient and the results will be compared between the groups. The test will be performed before induction and in the PACU. This will determine baseline platelet function, the effect of the anesthetics.
- Assess nasal blood flow to the sinonasal mucosa [ Time Frame: upto 1 day ]The Rhinolux will determine differences in the nasal blood flow between groups after induction of anesthesia, in a continous fashion. The Rhinolux is designed to measure changes in the swelling of the nasal mucosa by a tissue light absorption technique similar to that used in pulse oximetry.
- Comparison of operative time [ Time Frame: The day of surgery ]Operative time will be measured and compared between the 2 groups.
- Comparison of quality of recovery. [ Time Frame: The day of surgery ]Patients will be asked regarding nausea and pain in the recovery unit. One microgram of fentanyl/kg and/or 0.05 mg of morphine would be given if the patient's numeric rating scale (NRS) of pain is more than 6 before leaving the OR. In the PACU Morphine 1-2 mg IV bolus every 5-10 minutes will be provided as well as ondansetron 4 mg IV bolus. Alternative medications and or supplements will be provided and noted if necessary.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01214057
|United States, Texas|
|Memorial Hermann Hospital - Medical Center|
|Houston, Texas, United States, 77030|
|Principal Investigator:||Davide Cattano, MD PhD||The University of Texas Health Science Center, Houston|