Stanford University
The goal of the study is to compare continuous infusions and scheduled bolus infusions for peripheral nerve blocks and their effect on post-surgical pain.
Regional anesthetic techniques are an integral part to many anesthetic approaches, providing both intraoperative and postoperative anesthesia and analgesia. Regional anesthesia peripheral nerve blocks have been shown to reduce postoperative pain and improve measures such as opioid requirements and readiness for discharge. By using a catheter technique for continuous peripheral nerve blocks, analgesia can be extended well into post-operative days 2 and 3, further extending these benefits. Historically these catheters have implemented a continuous dosing regimen of local anesthetic, but increasi…
Inclusion Criteria: * Adult patients presenting for nerve block catheters for post-operative analgesia * ASA physical status I, II, or III. Exclusion Criteria: * Pregnancy * Incarceration * Age \<18 * BMI \>35 * Pre-operative opioid use \>30 mg morphine equivalents per day * Inability to communicate with investigators by telephone * Pre-existing neuropathy of the operative extremity.
Patient will be given a continuous infusion of local anesthetic.
Patient will be given a scheduled intermittent bolus of local anesthetic.
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