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Accuracy and Consistency of Modern Elastomeric Pumps
  1. Robyn S. Weisman, MD,
  2. Andres Missair, MD,
  3. Phung Pham, MD,
  4. Juan F. Gutierrez, MD and
  5. Ralf E. Gebhard, MD
  1. University of Miami Miller School of Medicine, Department of Anesthesiology, Perioperative Medicine, and Pain Management, Miami, FL
  1. Address correspondence to: Robyn S. Weisman, MD, Department of Anesthesiology, University of Miami, Miami, FL (e-mail: rweisman1{at}


Abstract Continuous peripheral nerve blockade has become a popular method of achieving postoperative analgesia for many surgical procedures. The safety and reliability of infusion pumps are dependent on their flow rate accuracy and consistency. Knowledge of pump rate profiles can help physicians determine which infusion pump is best suited for their clinical applications and specific patient population. Several studies have investigated the accuracy of portable infusion pumps. Using methodology similar to that used by Ilfeld et al, we investigated the accuracy and consistency of several current elastomeric pumps.

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  • The authors declare no conflict of interest.