Document Detail

Parenteral ketorolac: opiate-sparing effect and lack of cardiorespiratory depression in the perioperative patient.
MedLine Citation:
PMID:  2127959     Owner:  NLM     Status:  MEDLINE    
Two studies evaluated the intraoperative and postoperative use of ketorolac, a nonopioid analgesic. Compared with the opioid analgesic alfentanil, ketorolac administered intraoperatively exerted no adverse effects on cardirespiratory functions (i.e., no changes in heart rate, arterial partial pressure of carbon dioxide, or mean arterial pressure, and no associated apnea). Analgesic efficacy of both agents was judged to be equal. The study of postoperative infusion of ketorolac in combination with patient-controlled administration of morphine confirmed the analgesic efficacy of ketorolac when used after upper abdominal surgery. The narcotic-sparing effect was demonstrated by the finding that patients who received placebo self-administered over 40% more morphine in the first 24 hours after surgery than those in the ketorolac group. The better pain scores with ketorolac may be associated with the reduction in unpleasant morphine-related side effects or with the provision of continuous background analgesia. The lack of respiratory depression with ketorolac, which would be anticipated from its inability to bind to central opioid receptors, was also demonstrated. In the placebo group, arterial partial pressure of carbon dioxide was significantly increased postoperatively, whereas a similar increase was not found in the ketorolac group. Results of the two investigations demonstrate the absence of opioid effects with ketorolac, and support its use for intraoperative and postoperative analgesia in patients undergoing major surgery.
G N Kenny; C S McArdle; H H Aitken
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pharmacotherapy     Volume:  10     ISSN:  0277-0008     ISO Abbreviation:  Pharmacotherapy     Publication Date:  1990  
Date Detail:
Created Date:  1991-05-09     Completed Date:  1991-05-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8111305     Medline TA:  Pharmacotherapy     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  127S-131S     Citation Subset:  IM    
Department of Anaesthesia, Glasgow Royal Infirmary, United Kingdom.
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MeSH Terms
Alfentanil / administration & dosage,  adverse effects,  therapeutic use*
Anti-Inflammatory Agents, Non-Steroidal / administration & dosage,  adverse effects,  therapeutic use*
Blood Pressure / drug effects*
Carbon Dioxide / blood
Depression, Chemical
Double-Blind Method
Drug Combinations
Heart Rate / drug effects*
Infusions, Parenteral
Ketorolac Tromethamine
Morphine / administration & dosage*,  adverse effects
Partial Pressure
Time Factors
Tolmetin / administration & dosage,  adverse effects,  analogs & derivatives*,  therapeutic use
Tromethamine / administration & dosage,  adverse effects,  therapeutic use*
Reg. No./Substance:
0/Anti-Inflammatory Agents, Non-Steroidal; 0/Drug Combinations; 124-38-9/Carbon Dioxide; 26171-23-3/Tolmetin; 57-27-2/Morphine; 71195-58-9/Alfentanil; 74103-07-4/Ketorolac Tromethamine; 77-86-1/Tromethamine

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

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