Analysis of Gentamicin Extended Interval Dosing Protocols in a Neonatal Population     

Persistent Link:
http://hdl.handle.net/10150/614587
Title:
Analysis of Gentamicin Extended Interval Dosing Protocols in a Neonatal Population     
Author:
Genzlinger, Kristin M.; Murphy, John
Affiliation:
College of Pharmacy, The University of Arizona
Issue Date:
2011
Rights:
Copyright © is held by the author.
Collection Information:
This item is part of the Pharmacy Student Research Projects collection, made available by the College of Pharmacy and the University Libraries at the University of Arizona. For more information about items in this collection, please contact Jennifer Martin, Associate Librarian and Clinical Instructor, Pharmacy Practice and Science, jenmartin@email.arizona.edu.
Publisher:
The University of Arizona.
Abstract:
OBJECTIVES: The purpose of this study was to analyze various published gentamicin dosing protocols in a neonate population to determine the percentage of patients that fell within defined concentration ranges, and determine which protocol was the most efficient at being within the desired concentration ranges. METHODS: Data from three published studies were used to create a database of 331 neonates who were up to seven days old and received gentamicin. Pharmacokinetic data was obtained and applied to specific dosing protocols from six published studies. The protocols were used to simulate peak and trough concentrations for each neonate. Desired trough concentrations include < 0.5 mg/L or < 1 mg/L and peak concentrations within 7-10 mg/L. Results were analyzed for frequency of achieving pre-specified concentration ranges based on dosing protocols from the study. RESULTS: The Begg protocol was adjusted for a desired Cmax of 8.5 mg/L and an estimated volume of distribution based on weight and was found to be the most efficient at achieving the highest percentage of patients achieving peaks of 7-10 mg/L and a trough of < 1 mg/L and < 0.5 mg/L, 63.0% and 61.5%, respectively. Also, other protocols which adjusted the dose based primarily on weight or gestational age such as the Fullas, Blackmer and Darmstadt protocols frequently achieved their desired trough however the average peak varied significantly, and was higher than the pre-specified concentration range. CONCLUSION: Achieving acceptable concentration ranges was suboptimal with much variability between each protocol requiring therapeutic drug monitoring and adjusting accordingly until a more efficient protocol is developed for this patient population.
Description:
Class of 2011 Absrtact
Keywords:
Gentamicin; Dosing; Protocols; Neonatal
Advisor:
Murphy, John

Full metadata record

DC FieldValue Language
dc.contributor.advisorMurphy, Johnen
dc.contributor.authorGenzlinger, Kristin M.en
dc.contributor.authorMurphy, Johnen
dc.date.accessioned2016-06-24T15:29:40Z-
dc.date.available2016-06-24T15:29:40Z-
dc.date.issued2011-
dc.identifier.urihttp://hdl.handle.net/10150/614587-
dc.descriptionClass of 2011 Absrtacten
dc.description.abstractOBJECTIVES: The purpose of this study was to analyze various published gentamicin dosing protocols in a neonate population to determine the percentage of patients that fell within defined concentration ranges, and determine which protocol was the most efficient at being within the desired concentration ranges. METHODS: Data from three published studies were used to create a database of 331 neonates who were up to seven days old and received gentamicin. Pharmacokinetic data was obtained and applied to specific dosing protocols from six published studies. The protocols were used to simulate peak and trough concentrations for each neonate. Desired trough concentrations include < 0.5 mg/L or < 1 mg/L and peak concentrations within 7-10 mg/L. Results were analyzed for frequency of achieving pre-specified concentration ranges based on dosing protocols from the study. RESULTS: The Begg protocol was adjusted for a desired Cmax of 8.5 mg/L and an estimated volume of distribution based on weight and was found to be the most efficient at achieving the highest percentage of patients achieving peaks of 7-10 mg/L and a trough of < 1 mg/L and < 0.5 mg/L, 63.0% and 61.5%, respectively. Also, other protocols which adjusted the dose based primarily on weight or gestational age such as the Fullas, Blackmer and Darmstadt protocols frequently achieved their desired trough however the average peak varied significantly, and was higher than the pre-specified concentration range. CONCLUSION: Achieving acceptable concentration ranges was suboptimal with much variability between each protocol requiring therapeutic drug monitoring and adjusting accordingly until a more efficient protocol is developed for this patient population.en
dc.language.isoen_USen
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author.en
dc.subjectGentamicinen
dc.subjectDosingen
dc.subjectProtocolsen
dc.subjectNeonatalen
dc.titleAnalysis of Gentamicin Extended Interval Dosing Protocols in a Neonatal Population     en_US
dc.typetexten
dc.typeElectronic Reporten
dc.contributor.departmentCollege of Pharmacy, The University of Arizonaen
dc.description.collectioninformationThis item is part of the Pharmacy Student Research Projects collection, made available by the College of Pharmacy and the University Libraries at the University of Arizona. For more information about items in this collection, please contact Jennifer Martin, Associate Librarian and Clinical Instructor, Pharmacy Practice and Science, jenmartin@email.arizona.edu.en
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