Jennifer J Davis

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The increasing use of ultrasound has allowed anesthesiologists to perform nerve blocks with a high success rate and without nerve stimulation or eliciting a paresthesia. The ability to visualize peripheral nerve catheters using ultrasound is limited. We present a novel method to confirm the position of an interscalene catheter tip using injection of(More)
UNLABELLED The purpose of this study was to demonstrate a method for increasing the precision and information yield of postoperative pain assessment. We recorded pain intensity ratings over 6 days after surgery in 502 elective surgery patients and examined individual pain trajectories. A linear fit of an individual patient's scores defines a trajectory with(More)
BACKGROUND Continuous peripheral nerve block (CPNB) is an optimal choice for analgesia after orthopedic procedures, but is not commonly used in outpatients because of concern regarding the possibility of catheter-related complications. In addition, it may be difficult to provide adequate patient access to physicians in this setting. We present 620(More)
BACKGROUND Although chronic obstructive pulmonary disease (COPD) has been considered a disease of Caucasian men, recent data show mortality rising faster among women and African-Americans. Some have suggested these groups are more susceptible to tobacco smoke. We examined this issue in our own population of COPD patients. METHODS Beginning in March 2003(More)
BACKGROUND AND OBJECTIVES Subcutaneous (SC) unfractionated heparin (UFH) administered 3 times daily (TID) is widely used for venous thromboembolism prophylaxis in the perioperative period. There are no data in the literature regarding the incidence of adverse outcomes with neuraxial analgesia in the setting of this regimen. In this retrospective review, we(More)
Recently, there has been a significant increase in the use of opioid analgesics for chronic pain in the outpatient setting. As a result, anesthesiologists are commonly presented with the dilemma of treating acute postoperative pain in patients who do not receive adequate analgesia with conventional doses of opioid. This article presents a practical approach(More)
STUDY OBJECTIVE To report the results of single and continuous interscalene blocks (ISB) performed using ultrasound (US) guidance only. DESIGN Prospective, observational study. SETTING Operating room of a university-affiliated orthopaedic hospital. PATIENTS 200 ASA physical status I, II, and III patients undergoing shoulder or elbow surgery. (More)
UNLABELLED When opioids are used for postoperative pain control, it is useful to define the dose-response relationship for analgesia and respiratory depression. We studied 20 chronically opioid-consuming patients having elective multilevel spine fusion. Preoperatively, each patient received a fentanyl infusion of 2 microg x kg(-1) x min(-1) until the(More)
OBJECTIVE This exploratory investigation compared patterns of postoperative pain over 6 days in normal patients recovering from surgery with those of patients using opioid medications for chronic pain. It tested the following hypotheses: 1) Chronic pain patients have a different pattern of postoperative pain than normals; 2) Women have a different pattern(More)