Assessment of the antinociceptive effect of a single fentanyl bolus dose in children: A pharmacokinetic and pharmacodynamic analysis based on the nociception level index during sevoflurane general anesthesia

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dc.catalogadoryvc
dc.contributor.authorCruzat, Francisco
dc.contributor.authorIbacache, Mauricio
dc.contributor.authorGonzález, Alejandro
dc.contributor.authorPedemonte, Juan Cristobal
dc.contributor.authorContreras, Victor
dc.contributor.authorGiordano, Ady
dc.contributor.authorCortínez, Ignacio
dc.date.accessioned2024-11-22T19:54:22Z
dc.date.available2024-11-22T19:54:22Z
dc.date.issued2024
dc.description.abstractBackground The Nociception Level Index has shown benefits in estimating the nociception/antinociception balance in adults, but there is limited evidence in the pediatric population. Evaluating the index performance in children might provide valuable insights to guide opioid administration.AimsTo evaluate the Nociception Level Index ability to identify a standardized nociceptive stimulus and the analgesic effect of a fentanyl bolus. Additionally, to characterize the pharmacokinetic/pharmacodynamic relationship of fentanyl with the Nociception Level Index response during sevoflurane anesthesia.MethodsNineteen children, 5.3 (4.1-6.7) years, scheduled for lower abdominal or urological surgery, were studied. After sevoflurane anesthesia and caudal block, a tetanic stimulus (50 Hz, 60 mA, 5 s) was performed in the forearm. Following the administration of fentanyl 2 mu g/kg intravenous bolus, three similar consecutive tetanic stimuli were performed at 5-, 15-, and 30-min post-fentanyl administration. Changes in the Nociception Level Index, heart rate, mean arterial pressure, and bispectral index were compared in response to the tetanic stimuli. Fentanyl plasma concentrations and the Nociception Level Index data were used to elaborate a pharmacokinetic/pharmacodynamic model using a sequential modeling approach in NONMEM (R).ResultsAfter the first tetanic stimulus, both the Nociception Level Index and the heart rate increased compared to baseline (8 +/- 7 vs. 19 +/- 10; mean difference (CI95) -12(-18--6) and 100 +/- 10 vs. 102 +/- 10; -2(-4--0.1)) and decrease following fentanyl administration (19 +/- 10 vs. 8 +/- 8; 12 (5-18) and 102 +/- 10 vs. 91 +/- 11; 11 (7-16)). In subsequent tetanic stimuli, heart rate remained unchanged, while the Nociception Level Index progressively increased within 15 min to values similar to those before fentanyl. An allometric weight-scaled, 3-compartment model best characterized the pharmacokinetic profile of fentanyl. The pharmacokinetic/pharmacodynamic modeling analysis revealed hysteresis between fentanyl plasma concentrations and the Nociception Level Index response, characterized by plasma effect-site equilibration half-time of 1.69 (0.4-2.9) min. The estimated fentanyl C50 was 1.93 (0.73-4.2) ng/mL.ConclusionThe Nociception Level Index showed superior capability compared to traditional hemodynamic variables in discriminating different nociception-antinociception levels during varying fentanyl concentrations in children under sevoflurane anesthesia.
dc.description.funderDivision de Anestesiología
dc.fuente.origenWOS
dc.identifier.doi10.1111/pan.15013
dc.identifier.eissn1460-9592
dc.identifier.issn1155-5645
dc.identifier.urihttps://doi.org/10.1111/pan.15013
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/88656
dc.identifier.wosidWOS:001325923500001
dc.information.autorucEscuela de Medicina; Cruzat, Francisco; S/I; 179209
dc.information.autorucEscuela de Medicina; Ibacache, Mauricio; S/I; 817
dc.information.autorucEscuela de Medicina; Pedemonte, Juan Cristobal; 0000-0001-5729-065X; 119581
dc.information.autorucEscuela de Química; Giordano, Ady; 0000-0002-1867-6848; 207712
dc.information.autorucEscuela de Medicina; Cortínez, Ignacio; 0000-0001-8544-8768; 79356
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherWILEY
dc.revistaPEDIATRIC ANESTHESIA
dc.rightsacceso restringido
dc.subjectFentanyl
dc.subjectNociception
dc.subjectPediatric anesthesia
dc.subjectPharmacodynamics
dc.titleAssessment of the antinociceptive effect of a single fentanyl bolus dose in children: A pharmacokinetic and pharmacodynamic analysis based on the nociception level index during sevoflurane general anesthesia
dc.typeartículo
sipa.codpersvinculados179209
sipa.codpersvinculados817
sipa.codpersvinculados119581
sipa.codpersvinculados207712
sipa.codpersvinculados79356
sipa.trazabilidadWOS;2024-10-12
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