Timothy Morey

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BACKGROUND During the last decade, there has been a strong increase in the use of the mu-opioid receptor agonist fentanyl. The aim of these studies was to investigate the effects of fentanyl withdrawal on brain reward function and somatic withdrawal signs. METHODS Fentanyl and saline were chronically administered via minipumps. An intracranial(More)
UNLABELLED In this study, we investigated the efficacy of patient-controlled regional analgesia for outpatients undergoing moderately painful orthopedic surgery of the shoulder. Preoperatively, patients (n = 20) received an interscalene nerve block and perineural catheter. Postoperatively, patients were discharged home with both oral opioids and a portable(More)
BACKGROUND This randomized, double-blinded, placebo-controlled study investigated the efficacy of patient-controlled regional analgesia using a sciatic perineural catheter in the popliteal fossa and a portable infusion pump for outpatients having moderately painful, lower extremity orthopedic surgery. METHODS Preoperatively, patients (n = 30) received a(More)
BACKGROUND In this randomized, double-blind study, the authors investigated the efficacy of continuous and patient-controlled ropivacaine infusions via an infraclavicular perineural catheter in ambulatory patients undergoing moderately painful orthopedic surgery at or distal to the elbow. METHODS Preoperatively, patients (n = 30) received an(More)
OBJECTIVE To compare 3 types of noxious stimuli applied to various anatomic areas of anesthetized dogs and rabbits for determination of the minimum alveolar concentration (MAC). ANIMALS 10 dogs and 10 rabbits. PROCEDURE Dogs were anesthetized with isoflurane and halothane in a randomized order. Rabbits were anesthetized with isoflurane. The MAC was(More)
BACKGROUND This randomized, double-blind study investigated the efficacy of continuous and patient-controlled ropivacaine infusion via a popliteal sciatic perineural catheter in ambulatory patients undergoing moderately painful orthopedic surgery of the foot or ankle. METHODS Preoperatively, patients (n = 30) received a posterior popliteal sciatic(More)
STUDY OBJECTIVE To determine changes in the cross-sectional area of the right internal jugular vein (RIJV) in response to positive intrathoracic pressure and hepatic compression in mechanically ventilated patients during general anesthesia. DESIGN Prospective, nonrandomized study. SETTING A university medical center. PATIENTS 15 ASA physical status II(More)
OBJECTIVE To determine if preemptive analgesia with ropivacaine hydrochloride with or without clonidine hydrochloride decreases pain and hastens recovery after tonsillectomy. DESIGN Prospective, randomized, triple-blinded trial. SETTING University referral center; pediatric ambulatory practice. PARTICIPANTS Sixty-four children, aged 3 to 15 years,(More)
BACKGROUND The lipophilicity of propofol has required dispersion in a soybean macroemulsion. The authors hypothesized that the anesthetic properties of propofol are preserved when reformulated as a transparent microemulsion rather than as a turbid macroemulsion and that the dose-response relation can be selectively modified by altering the microemulsion's(More)