Comparative Assessment of Cortical Hemodynamic Activity in Children Undergoing Anesthesia With Sevoflurane and Propofol: A Functional Near Infrared Spectroscopy Based Randomized Controlled Trial
Abstract
Background: Sevoflurane and propofol, the common anesthetic agents, have been under evaluation for emergence delirium in children. This pilot study examined how frontal cortex blood flow during sevoflurane and propofol anesthesia relates to emergence delirium in children aged 3-10 using functional near-infrared spectroscopy (fNIRS).
Methods: Seventy-four children, undergoing urologic and orthopedic surgeries, were randomly assigned to either propofol (n = 37) or sevoflurane (n = 37) after obtaining approval from the institute ethics committee, written informed parental consent, assent, and registration in a clinical trial registry. Children with perinatal hypoxia, preterm birth, seizures, developmental disorders, psychiatric illness, or electrolyte imbalances were excluded. Anesthesia was induced and maintained per standard protocols, and pain was managed using paracetamol, ketorolac, and caudal analgesia. fNIRS readings were recorded at induction and reversal. Postoperatively, emergence delirium was assessed using the PAED and Cornell Assessment of Pediatric Delirium (CAPD) scales. Data were collected using a 20-channel fNIRS system and analyzed with NIRStar software.
Results: Frontal cortex fNIRS demonstrated agent-specific cortical patterns during anesthesia induction, with distinct neural activity differences related to ED. Under propofol, children without ED demonstrated greater left frontal activation (channel 4; t = 2.30, p < 0.005), whereas those with ED showed…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 37 participants or records.
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