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Risk factors for hyperketonemia in cleft lip and palate infants during general anesthesia
Yoshinari Morimoto1, Mitsutaka Sugimura, Hiroshi Hanamoto
1Department of Dental Anesthesiology, Osaka University Graduate School of Dentistry, Osaka, Japan. ysn-mori@dent.osaka-u.ac.jp
Insights
Infants undergoing anesthesia are at risk for hyperketonemia. Older infants and afternoon surgeries increase this risk, even with glucose administration. Careful patient selection and timing are key for preventing high ketone levels.
Area of Science:
- Pediatric Anesthesiology
- Metabolic Disorders
- Infant Health
Background:
- Hyperketonemia in infants can result from lipid catabolism during anesthesia.
- Glucose administration is used to prevent hyperketonemia, but risk factors require further investigation.
Purpose of the Study:
- To identify risk factors for hyperketonemia in infants receiving glucose during general anesthesia.
- Investigate the impact of patient age, anesthesia start time, and preoperative fluid intake.
Main Methods:
- 147 healthy infants (2-24 months) were studied, divided into cleft lip and cleft palate groups.
- Preoperative fluid intake and intraoperative glucose infusion (195 mg/kg/hour) were standardized.
- Blood ketone bodies (β-hydroxybutyrate) and glucose levels were measured at anesthesia induction and 2 hours post-induction.
Main Results:
- Abnormally high ketone body concentrations (≥ 1.0 mmol/L) were found in 34 infants.
- Age (P = .001), specifically the cleft palate group (P < .001), and afternoon anesthesia start times (P = .003) were significantly associated with hyperketonemia.
- No significant difference in preoperative liquid intake was observed between groups.
Conclusions:
- Age group (cleft palate) and afternoon anesthesia start times are significant risk factors for hyperketonemia in infants.
- These findings aid in optimizing anesthetic management to prevent hyperketonemia in pediatric patients.
Purpose:
The purpose of the present study was to investigate the risk factors for hyperketonemia with respect to patient age, the starting time of anesthesia (morning or afternoon), and the preoperative liquid intake when glucose was administered to infants before and during general anesthesia to avoid the hyperketonemia resulting from lipid catabolism.
Patients And Methods:
The subjects were 147 healthy infants, including 55 infants 2 to 6 months old (cleft lip group) and 92 who were 10 to 24 months old (cleft palate [CP] group). For preoperative liquid intake, the infants were allowed to drink formula or breast milk for ≤ 5 hours before entering the operating room and 6.7% glucose solution for ≤ 2 hours before entering the operating room. As an intraoperative infusion, 195 mg/kg/hour of glucose was constantly administered. The levels of blood ketone bodies and glucose were measured at anesthesia induction and 2 hours after induction. Blood ketone body (β-hydroxybutyrate) concentrations of ≥ 1.0 mmol/L were considered abnormally high.
Results:
The ketone body concentrations were abnormally high in 34 infants and normal in 113 infants. Significant differences were present in relation to age (P = .001) and age group (CP group, P < .001), and starting time of anesthesia (afternoon cases, P = .003). However, no difference in preoperative liquid intake was seen between groups. Logistic regression analysis suggested age group (CP group) and starting time of anesthesia (afternoon cases) as factors associated with elevated blood ketone body concentrations.
Conclusions:
The risk factors for abnormally high ketone body concentrations were age group (CP group) and starting time of anesthesia (afternoon cases).
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