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Comparison of flow rate accuracy and consistency between the on-Q, baxter, and ambu pain infusion devices
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作者 Michelle Le Riger Tarun Bhalla +2 位作者 David Martin jacob bettesworth Joseph D Tobias 《World Journal of Anesthesiology》 2014年第1期119-123,共5页
AIM: Providing analgesia via peripheral nerve catheters attached to an infusion pump is an effective pain management option in children.METHODS: Portable infusion pumps are being used with increased frequency in pedia... AIM: Providing analgesia via peripheral nerve catheters attached to an infusion pump is an effective pain management option in children.METHODS: Portable infusion pumps are being used with increased frequency in pediatric patients. Because these pumps are infusing potentially toxic doses of medications, the accuracy and consistency of these devices becomes very important in this patient population. This study is a comparison of the actual delivery volume of local anesthetic of three elastomeric infusion devices approved for patient use in the ambulatory setting. Three brands of disposable elastomeric infusion devices were used(Five On-Q, Five Baxter, and Five Ambu pumps). Each was filled with 200 m L of Ropivicaine 0.1% and connected to a single, end hole infusion catheter and set to infuse at 12 m L/h. The devices were run simultaneously. The fluid delivered was measured every hour with a graduated column over a tenhour period. The ambient temperature was also recorded.RESULTS: There were statistically significant differences in the output from each elastomeric device over the 10 h infusion period when compared to the nominal rate of 12 m L/h. The output from the Ambu and Baxter pumps was less than that set on the regulator, while the output from the On-Q pump was greater than that set on the regulator. The results remained statistically significant after adjusting the nominal rate to correct for differences in temperature. The Ambu infusion device was the most consistent, while the Baxter infusion device was the most accurate. This emphasizes the importance of health care providers understanding the infusion profile of the pump being used for continuous peripheral nerve block, as these alterations in flow could result in inadequate analgesia, early reservoir exhaustion, excessive muscle weakness or potential toxicity, especially when used in pediatric patients.CONCLUSION: This investigation demonstrates that three modern elastomeric infusion pumps have significantly different output than the nominal rate set on the regulator. 展开更多
关键词 PEDIATRIC ANESTHESIA PAIN Regional ANESTHESIA PAIN PUMPS Acute PAIN
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