Measurement of Blood Loss in Adenotonsillectomy During General Anesthesia According to the Application of Nondepolarizing Muscle Relaxants
The Effects of Nondepolarizing Muscle Relaxants During General Anesthesia on Perioperative and Postoperative Bleeding in Pediatric and Adult Patients Undergoing Tonsillectomy
University Hospital of Split
60 participants
Apr 18, 2024
INTERVENTIONAL
Conditions
Summary
Although tonsillectomy is one of the most commonly performed surgeries, a review of literature reveals no articles dealing with the study of intraoperative blood loss in tonsillectomy and adenotonsillectomy according to the use of nondepolarizing muscle relaxants. The primary aim of our trial will be to compare blood loss in the operating theatre and postoperatively in two groups of children having adenotonsillectomy. The trial numbers will be randomised in blocks.
Eligibility
Inclusion Criteria2
- conventional cold tonsillectomy and curettage adenoidectomy
- American Society of Anesthesiologists (ASA) physical status classification system: I, II aged between 3 and 7 years
Exclusion Criteria1
- Contraindications for general anesthesia, coagulation disorders, anemia,identification of an infection during systemic examinations
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Interventions
After entering the operating room, the children will be monitored (electrodes for ECG, blood pressure cuff and pulse oximeter). We will use gas mixture of O2/N20 50/50% and concentration of Sevoflurane set between 5% and 6 % with a dose of 6 L/min (1.0 -1.3 MAC) for 10 breaths, then we will set 4 % concentration of Sevoflurane. After loss of consciousness, intravenous line 22 G will be obtained and 0.9 % saline infuse with a dose of 4 ml/kg/hr, Fentanyl 1 mcg/kg iv. and Propofol 2 mg/kg. During stage III of anesthetic depth, we will perform orotracheal intubation.
After entering the operating room, chlidren will be monitored (electrodes for ECG, blood pressure cuff and pulse oximeter). We will use gas mixture of O2/N20 50/50% and concentration of Sevoflurane set between 5% and 6 % with a dose of 6 L/min (1.0 -1.3 MAC) for 10 breaths. After loss of consciousness, we will turn off Sevoflurane, intravenous line 22 G will be obtained and 0.9 % saline infuse with a dose of 4 ml/kg/hr, 1 mcg/kg Fentanyl, 2.5 mg/kg Propofol and 0.6 mg/kg Rocuronium bromide (esmeron). After 2 min, orotracheal intubation will be performed.
Locations(1)
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NCT06399445