Preoperative evaluation of stomach fullness with ultrasound in children who will undergo anesthesia outside the operating room
Determining the gastric contents and volume by preoperative gastric ultrasound in pediatric patients and defining its relationship with the risk of postoperative aspiration.
Study Type
OBSERVATIONAL
Enrollment
200
Erciyes University
Kayseri, Turkey (Türkiye)
RECRUITINGQualitative assessment of residual gastric fluid volume
Grade 0: Defined as no contents visible in the antrum, the stomach is empty and the volume of the contents approaches zero. Grade 1: Visible clear fluid with a fluid volume of \<1.5 mL/kg. Grade 2: Defined as visible clear fluid with a fluid volume of \>1.5 mL/kg in both the supine and lateral decubitus positions.
Time frame: preoperative evaluation in the operating room
Gastric content volume
It will be calculated using a mathematical model validated in children aged 11 months to 18 years. Volume(mL/kg) = \[-7.8 + 0.035 × antral area measured in lateral decubitus position (mm2) + 0.127 × age (months)\] / body weight (kg). The R² value for this model was 0.60.
Time frame: preoperative evaluation in the operating room
Antral cross-sectional area
In both supine and lateral decubitus positions, between antral contractions, serosa to serosa, measuring the length diameter (D1) and the anteroposterior diameter (D2); Antral area = (π × D1 × D2) / 4 will be measured using the formula.
Time frame: preoperative evaluation in the operating room
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