Ultrasound Evaluation of Gastric Volume in Pediatric Patients Undergoing Adenotonsillectomy Surgery
Condition: Gastric Volume; Aspiration; Nausea; Bleeding
MeSH terms: Nausea
Study type: Interventional

Summary: 
      Adenoidectomy and/or tonsillectomy are performed for many reasons such as recurrent tonsil
      and adenoid infections, sleep apnea, symptomatic adenotonsillar hypertrophy, halitosis,
      peritonsillar abscess, and it is one of the most performed surgeries in the world. Passive
      blood loss from the surgical field into the gastric area may occur during the surgery.

      Investigators wonder whether the amount of blood and fluid accumulated in the stomach after
      tonsillectomy and/or adenoidectomy in children will increase the risk of aspiration. For this
      purpose, the aim is to compare the results with values considered risky for aspiration by
      evaluating the pre- and postoperative gastric volume with ultrasound in children who
      underwent elective adenoidectomy and /or tonsillectomy.
    

Detailed description: 
      Tonsillectomy and/or adenoidectomy are performed for many reasons such as recurrent tonsil
      and adenoid infections, sleep apnea, symptomatic adenotonsillar hypertrophy, halitosis,
      peritonsillar abscess, and it is one of the most performed surgeries in the world. During
      these operations, there may be fluid and blood accumulation in the stomach.

      Investigators wonder whether the amount of blood and fluid accumulated in the stomach after
      tonsillectomy and/or adenoidectomy in children will increase the risk of aspiration. For this
      purpose, the aim is to compare the results with values considered risky for aspiration by
      evaluating the pre- and postoperative gastric volume with ultrasound in children who
      underwent tonsillectomy and/or adenoidectomy.

      This study will include ASA 1,2,3 patients under the age of 18 who will undergo tonsillectomy
      and/or adenoidectomy in the operating rooms of Istanbul University, Istanbul Medical Faculty,
      Department of Otorhinolaryngology, after the approval of the ethics committee. All the
      patients will be given oral midazolam at a dose of 0.3 mg/kg as standard in the preoperative
      preparation room. After standard monitoring (ECG, NIBP, SpO2) is performed in the operating
      room, gastric volume will be evaluated by ultrasound in the right lateral position before the
      operation. After induction of general anesthesia (sevoflurane + 02 + NO2 inhalation, 1 mcg/kg
      fentanyl, 0.5 mg/kg rocuronium) patients will be intubated. After intubation, gastric volume
      will be re-evaluated by ultrasound in the right lateral position. anesthesia will be
      maintained with a mixture of sevoflurane + 40%/60% O2/NO2 for a MAC of 1.0. At the end of the
      surgery, before the patient is extubated, the gastric volume will be evaluated by ultrasound
      in the right lateral position. Afterwards, the patients will be extubated and taken to the
      postoperative recovery room. Nausea and vomiting of patients during awakening and for the
      next 24 hours will be recorded. Patients' age, gender, height, weight, duration of surgery
      will also be recorded in the follow-up form.
    

Intervention name(s): gastric assessment of gastric volume
Intervention type(s): Other
Intervention description(s): ultrasound assessment of gastric volume is going to bel evaluted in the Preoperative and postoperative period while the patients lay in right lateral decubitus position.
Intervention model: Single Group Assignment
Masking: None (Open Label)
Primary purpose: Other