Clinical trial NCT04729465: The Effect of BIS-guided Propofol Induction on Hemodynamic Response in Patients With Cardiac Risk.
Official title: The Effect of BIS-guided Propofol Induction on the Peroperative and Postoperative Hemodynamic Response in Patients With Cardiac Risk in Ear-nose-throat Surgery.
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Anesthesia, General
Keywords: BIS, propofol, anesthesia
Lead sponsor: Istanbul University - Cerrahpasa
Sponsor class: OTHER
First posted: 2021-01-28
Enrollment: 60
Sex: ALL
Minimum age (years): 18
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Drug: Propofol Device : Bispectral Index Monitor
Primary purpose: SUPPORTIVE_CARE

Brief summary: Anesthesia induction will be started by monitoring ECG, non-invasive artery monitoring, peripheral oxygen saturation and BIS for all patients who are taken to the operating room without sedation. The patients were divided into 2 groups: Group P; Propofol 2 mg / kg bolus (in 10 seconds), Group B; Propofol will be started as an infusion dose of 0,25 mg / kg / min and will be discontinued when the BIS reaches a minimum value of 60. Noninvasive arterial blood pressure and heart rate will be measured at 2-minute intervals during the first 10 minutes of induction and then at 15th , 20th ,30th and 60th minutes peroperatively. Hypotension; mean arterial pressure (MAP) \<60 mmHg, bradycardia heart rate \<60 / min, hypertension MAP\> 120 mmHg and tachycardia heart rate\> 100 / min were defined. The difference of changes, their duration, the difference between the maximal value and the baseline value, and the number of occurrences of hypotension, hypertension, and arrhythmias during the entire induction and perioperative period will be recorded. Noninvasive arterial blood pressure and heart rate measurements of the patients will be made in the postoperative period at 5th , 15th , 30th minutes and at 1st , 2nd , 4th , and 24th hours. At the end of the 1st month, it will be questioned whether the patients encounter a cardiovascular problem that will require treatment or hospitalization in the period following the surgery. All patients will be started with 5 ml / kg / hour IV crystalloid infusion. When the MAP falls below 60 mmHg during induction, the patient will be given the Trendelenburg position and the crystalloid infusion will be increased to 10 ml / kg / hour, and vasoconstrictor drug will be added if the hypotension does not improve within the following 10 minutes.

Detailed description: surgeries performed on patients participating in the study

minor elective ear nose throat surgery (microlaryngeal surgery, biyopsy for ENT malignancy, myringoplasty)

exclusion criteria;history of stroke, stupor, dementia, long-term use of central nervous system (CNS) activator drugs, benzodiazepines and/or opiates therapy, and pregnant females

Eligibility criteria: Inclusion Criteria:

The patients with a cardiovascular problem requiring ENT surgery lasting less than 2 hours

Exclusion Criteria:

Patients having history of stroke, stupor, dementia, long-term use of central nervous system (CNS) activator drugs, benzodiazepines and/or opiates therapy, and pregnant females were excluded from the study.

Primary outcomes:
measure: Propofol consumption
timeFrame: 30 minutes-2 hours
Secondary outcomes:
measure: Hemodynamic alterations
timeFrame: 30 minutes- 2 hours
Other outcomes:
Locations:
Study officials:
References: