14 December 2014 : Original article
Effect of a Bolus Dose of Fentanyl on the ED50 and ED95 of Sevoflurane in Neonates
Ying-Jun SheABCDE, Huai-Zhen WangBDF, Jun-Xiang HuangBEF, Yong-Hong TanAE, Zi-Xing WangBF, Hang TianAF, Xing-Rong SongACDEGDOI: 10.12659/MSM.891276
Med Sci Monit 2014; 20:2658-2665
Abstract
BACKGROUND: The minimum alveolar concentration (MAC) of sevoflurane in neonates is 3.3%, but this value has not been verified in Chinese neonates and the effect of different doses of fentanyl on MAC in neonates has not been investigated. This study was designed to determine the ED50 and ED95 values of sevoflurane in Chinese neonates with and without fentanyl.
MATERIAL AND METHODS: Ninety-three neonates were randomly assigned to receive sevoflurane alone (control group, n=30), 1 µg/kg sevoflurane (group fent1, n=29), or 2 µg/kg fentanyl (group fent2, n=32). Following inhalational induction and tracheal intubation, the end-tidal concentration of sevoflurane was adjusted to achieve the designated concentration, which was determined using the modified Dixon’s up-and-down method starting with 3.0% in each group, with a 0.25% step size. Success was defined as no motor response within 60 s of skin incision.
RESULTS: The MAC (standard deviation) values of sevoflurane were 2.91% (0.27) in the control group, 2.53% (0.31) in the fent1 group, and 2.34% (0.33) in the fent2 group according to Dixon’s up-and-down method. Logistic probit regression analysis revealed that the ED50 and ED95 (95% CI) of sevoflurane in neonates were 2.82% (2.66–2.98) and 3.39% (2.89–3.89), respectively, in the control group; 2.44% (2.19–2.68) and 3.30% (2.51–4.09), respectively, in the fent1 group; and 2.21% (1.97–2.45) and 3.11% (2.35–3.88), respectively, in the fent2 group.
CONCLUSIONS: The MAC value of sevoflurane in Chinese neonates was lower than previously reported and was reduced by the addition of fentanyl.
Keywords: Dose-Response Relationship, Drug, Demography, Fentanyl - pharmacology, Infant, Newborn, Methyl Ethers - pharmacology
In Press
16 Mar 2024 : Clinical Research
Diagnostic Efficiency of ACR-TIRADS Score for Differentiating Benign and Malignant Thyroid Nodules of Vario...Med Sci Monit In Press; DOI: 10.12659/MSM.943228
08 May 2024 : Clinical Research
Effect of Individualized PEEP Guided by Driving Pressure on Diaphragm Function in Patients Undergoing Lapar...Med Sci Monit In Press; DOI: 10.12659/MSM.944022
21 Mar 2024 : Clinical Research
Impact of Serum Vitamin D, B6, and B12 and Cognitive Functions on Quality of Life in Peri- and Postmenopaus...Med Sci Monit In Press; DOI: 10.12659/MSM.943249
17 Mar 2024 : Clinical Research
Protective Role of TRPC3 Gene Polymorphism (rs10518289) in Obstructive Sleep Apnea Hypopnea Syndrome Among ...Med Sci Monit In Press; DOI: 10.12659/MSM.942667
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952