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Correlation between duration of preoperative fasting and emergence delirium in pediatric patients undergoing
Puneet Khanna1, Kulbhushan Saini1, Renu Sinha1
1Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India.
Insights
Longer preoperative fasting in children may increase the risk of postoperative emergence delirium. This study found a correlation between fasting duration and delirium scores in pediatric ophthalmic surgery patients.
Area of Science:
- Pediatric Anesthesiology
- Ophthalmology
- Surgical Patient Care
Background:
- Preoperative fasting in children can induce anxiety, potentially leading to postoperative emergence delirium.
- Limited data exists on the correlation between preoperative fasting duration and emergence delirium in pediatric patients.
Purpose of the Study:
- To investigate the relationship between the duration of preoperative fasting and the occurrence of emergence delirium in children undergoing ophthalmic examinations under anesthesia.
Main Methods:
- A prospective observational study included 100 children (2-6 years, ASA I/II) undergoing ophthalmic examination under general anesthesia.
- Preoperative fasting duration was recorded, and emergence delirium was assessed using the Pediatric Anesthesia Emergence Delirium (PAED) scale postoperatively.
- No premedication was administered, but parental presence was permitted.
Main Results:
- The mean fasting duration for clear liquids was 6.3 hours.
- 24% of children exhibited a PAED score greater than 10.
- PAED scores at 15 and 25 minutes post-anesthesia showed a significant correlation with preoperative fasting duration (p=0.02).
Conclusions:
- Extended preoperative fasting may be a contributing risk factor for postoperative emergence delirium in pediatric patients undergoing ophthalmic surgery.
- No correlation was found between fasting duration, blood glucose levels, and PAED scores.
Background:
Preoperative fasting in children can cause anxiety, which may ultimately lead to postoperative emergence delirium. However, no data are available whether duration of preoperative fasting correlates with postoperative emergence delirium.
Aims:
The aim of this study was to identify if there is any correlation between the duration of preoperative fasting and emergence delirium in children undergoing ophthalmic examination under anesthesia.
Methods:
In this prospective observational study, 100 children between the age group 2-6 years of American Society of Anesthesiologists physical status I or II, scheduled for examination of the eye under general anesthesia with sevoflurane were recruited. Data regarding preoperative fasting was recorded and presence of emergence delirium was assessed by the Pediatric Anesthesia Emergence Delirium (PAED) scale at 5 minute interval till 30 minutes from the time of leaving the operation theater. No premedication was used in any patients but parental presence was allowed in all of them.
Results:
Mean (standard deviation) duration of fasting to clear liquid was 6.3 (1.7) hrs. Twenty-four children (24%) had at least 1 recorded PAED score >10 at any time point in the postoperative period. PAED scores at 15 and 25 minutes were significantly correlated with duration of fasting (r2 [95% CI] = .24 [0.04, 0.41], P = .02, Pearsons's correlation and r2 [95% CI] = .23 [0.04, 0.41], P = .02, Pearsons's correlation, respectively). No correlation has been found between duration of fasting and blood glucose level (r2 [95% CI] = -.05 [-0.24, 0.15], P = .65, Pearsons's correlation) between fasting blood glucose and PAED score at any time point.
Conclusion:
Increased preoperative fasting duration may be a risk factor for postoperative emergence delirium in children undergoing ophthalmic examination under general anesthesia.
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