Document Detail


Continuous lumbar plexus block provides improved analgesia with fewer side effects compared with systemic opioids after hip arthroplasty: a randomized controlled trial.
MedLine Citation:
PMID:  17961837     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND OBJECTIVES: A single injection lumbar plexus block for acute pain management after hip surgery is usually limited to the immediate postoperative period. We conducted a randomized controlled trial to determine the effect of a continuous lumbar plexus block on perioperative opioid requirements and pain intensity. METHODS: Adult patients undergoing elective hip arthroplasty under general anesthesia were randomized to continuous lumbar plexus block combined with patient-controlled analgesia (PCA) or PCA only for postoperative pain. Patients allocated to the lumbar plexus block had the catheter placed before surgery. Patients were followed for 36 hours. Perioperative opioid requirement was the primary outcome; secondary outcomes included assessment of pain intensity, patient and surgeon satisfaction with the analgesic technique, and occurrence of nausea and vomiting. RESULTS: Seventeen patients were randomized to each treatment group. Compared with patients in the PCA group, patients in the continuous lumbar plexus block group required less morphine (12 mg) (95% CI, -12.9 to -3.9), had on average less pain (-2.1 units on a 0 to 10 scale) (95% CI, -3.8 to -1.1), were more satisfied with their analgesic technique, and experienced less nausea and vomiting. One patient in the continuous lumbar plexus block developed a delayed paresis and 1 patient in the PCA group developed respiratory depression. CONCLUSIONS: Continuous lumbar plexus block combined with PCA is superior to PCA alone for postoperative pain management following hip replacement. It reduces opioid requirements, opioid related side effects, and enhances patient satisfaction. However, additional research is required to determine its safety in light of the neurologic injury observed.
Authors:
Zafar I Siddiqui; M Soledad Cepeda; William Denman; Roman Schumann; Daniel B Carr
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Regional anesthesia and pain medicine     Volume:  32     ISSN:  1098-7339     ISO Abbreviation:  Reg Anesth Pain Med     Publication Date:    2007 Sep-Oct
Date Detail:
Created Date:  2007-10-26     Completed Date:  2008-01-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9804508     Medline TA:  Reg Anesth Pain Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  393-8     Citation Subset:  IM    
Affiliation:
Department of Anesthesia, Tufts-New England Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Aged, 80 and over
Analgesia, Patient-Controlled
Analgesics, Opioid / administration & dosage,  adverse effects,  therapeutic use
Anesthetics, Local / administration & dosage,  adverse effects,  therapeutic use
Arthroplasty, Replacement, Hip*
Bupivacaine / administration & dosage,  adverse effects,  therapeutic use
Female
Humans
Lumbosacral Plexus*
Male
Middle Aged
Morphine / administration & dosage,  adverse effects,  therapeutic use
Nerve Block* / adverse effects
Pain Measurement / drug effects
Pain, Postoperative / drug therapy*
Patient Satisfaction
Postoperative Nausea and Vomiting / epidemiology
Sample Size
Treatment Outcome
Chemical
Reg. No./Substance:
0/Analgesics, Opioid; 0/Anesthetics, Local; 2180-92-9/Bupivacaine; 57-27-2/Morphine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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