Document Detail


Opioids and cardioprotection: the impact of morphine and fentanyl on recovery of ventricular function after cardiopulmonary bypass.
MedLine Citation:
PMID:  16884978     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: Experimental studies have shown that opioids protect the myocardium from ischemic injury and that opioid cardioprotection is enhanced by the coadministration of volatile anesthetics. Previous data suggest that morphine produces a more potent cardioprotective effect than fentanyl. The present study investigated the effect of the choice of intraoperative opioid (morphine or fentanyl) on recovery of myocardial function after coronary artery bypass graft (CABG) surgery. DESIGN: Prospective, randomized study. SETTING: University hospital. PARTICIPANTS: Forty-six patients undergoing CABG surgery. INTERVENTIONS: Patients were randomly assigned to receive either morphine (40 mg) or fentanyl (1,000 mug) before cardiopulmonary bypass (CPB). Global cardiac function was assessed intraoperatively using the myocardial performance index (MPI), which combines echocardiographic parameters of both systolic and diastolic function. MEASUREMENTS AND MAIN RESULTS: The MPI (median [range]) was increased after CPB in the fentanyl group, indicating a significant worsening of global left ventricular function (0.43 [0.28-0.54] baseline; 0.49 [0.32-0.64] 15 minutes post-CPB; 0.51 [0.36-0.63] end of operation; p < 0.05 post-CPB compared with baseline). The MPI improved in the morphine group after CPB (0.44 [0.32-0.64] baseline; 0.36 [0.24-0.45] 15 minutes post-CPB; 0.34 [0.20-0.46] end of operation; p < 0.05 post-CPB compared with baseline and the fentanyl group). CONCLUSIONS: In patients undergoing CPB, global ventricular function is enhanced by the administration of morphine prior to the ischemic insult of cardioplegic arrest.
Authors:
Glenn S Murphy; Joseph W Szokol; Jesse H Marymont; Michael J Avram; Jeffery S Vender
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2006-01-27
Journal Detail:
Title:  Journal of cardiothoracic and vascular anesthesia     Volume:  20     ISSN:  1053-0770     ISO Abbreviation:  J. Cardiothorac. Vasc. Anesth.     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-08-03     Completed Date:  2007-01-11     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9110208     Medline TA:  J Cardiothorac Vasc Anesth     Country:  United States    
Other Details:
Languages:  eng     Pagination:  493-502     Citation Subset:  IM    
Affiliation:
Department of Anesthesiology, Evanston Northwestern Healthcare, Northwestern University Feinberg School of Medicine, Evanston, IL 60201, USA. gmurphy@enh.org
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MeSH Terms
Descriptor/Qualifier:
Aged
Analgesics, Opioid / pharmacology*
Anesthetics, Intravenous / pharmacology*
Cardiopulmonary Bypass*
Cardiovascular Physiological Phenomena
Coronary Artery Bypass
Double-Blind Method
Echocardiography
Female
Fentanyl / pharmacology*
Humans
Ischemic Preconditioning, Myocardial*
Male
Morphine / pharmacology*
Myocardial Reperfusion Injury / physiopathology,  prevention & control,  ultrasonography
Natriuretic Peptide, Brain / blood
Troponin I / blood
Ventricular Function*
Ventricular Function, Left / drug effects*
Chemical
Reg. No./Substance:
0/Analgesics, Opioid; 0/Anesthetics, Intravenous; 0/Troponin I; 114471-18-0/Natriuretic Peptide, Brain; 437-38-7/Fentanyl; 57-27-2/Morphine
Comments/Corrections
Comment In:
J Cardiothorac Vasc Anesth. 2007 Jun;21(3):474-5; author reply 475-6   [PMID:  17544914 ]
J Cardiothorac Vasc Anesth. 2006 Aug;20(4):473-6   [PMID:  16884975 ]

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