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World J Anesthesiol. Mar 27, 2014; 3(1): 119-123
Published online Mar 27, 2014. doi: 10.5313/wja.v3.i1.119
Published online Mar 27, 2014. doi: 10.5313/wja.v3.i1.119
Comparison of flow rate accuracy and consistency between the on-Q, baxter, and ambu pain infusion devices
Michelle LeRiger, Tarun Bhalla, David Martin, Jacob Bettesworth, Joseph D Tobias, Departments of Anesthesiology and Pain Medicine, Nationwide Children’s Hospital and the Ohio State University, Columbus, OH 43205, United States
Joseph D Tobias, Departments of Pediatrics, Nationwide Children’s Hospital and the Ohio State University, Columbus, OH 43205, United States
Author contributions: LeRiger M, Bhalla T and Bettesworth J performed a majority of the experiments; Martin D and Tobias JD provided vital analytical ideas and tools as well as were involved with editing the manuscript.
Correspondence to: Joseph D Tobias, MD, Department of Anesthesiology and Pain Medicine, Nationwide Children’s Hospital and the Ohio State University, 700 Children’s Drive, Columbus, OH 43205, United States. joseph.tobias@nationwidechildrens.org
Telephone: +1- 614-7225817 Fax: +1-614-7224203
Received: July 26, 2013
Revised: August 15, 2013
Accepted: August 28, 2013
Published online: March 27, 2014
Processing time: 228 Days and 1.1 Hours
Revised: August 15, 2013
Accepted: August 28, 2013
Published online: March 27, 2014
Processing time: 228 Days and 1.1 Hours
Core Tip
Core tip: This study demonstrates that three single use elastomeric infusion devices have rates that are significantly different from the set nominal delivery volume. These alterations in flow may be clinically significant, resulting in either inadequate analgesia, early exhaustion of the reservoir, excessive muscle weakness or the potential for toxicity, especially when used with pediatric patients. Therefore, in order to provide the best care, physicians must not only take into account the temperature at which the pump will be kept, viscosity of the solution used, and the height of the reservoir but also the infusion profile of the individual pump being used.