Document Detail


Analysis of the outcome for patients experiencing myocardial infarction and cardiopulmonary resuscitation refractory to conventional therapies necessitating extracorporeal life support rescue.
MedLine Citation:
PMID:  16484889     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To analyze the results of acute myocardial infarction (AMI) complicated with refractory shock necessitating extracorporeal life support (ECLS) rescue and to search for associated risk factors. DESIGN: Retrospective review of our 9-yr experience with patients initially presenting with AMI with shock necessitating ECLS rescue; analysis of patient outcomes. SETTING: A university-affiliated tertiary referral medical center. PATIENTS: Between 1994 and 2003 inclusively, 36 consecutive patients (age [mean +/- sd], 57 +/- 10 yrs) with AMI complicated by refractory shock and undergoing cardiopulmonary resuscitation (CPR) necessitating emergent ECLS rescue were enrolled in this study. INTERVENTION: All patients underwent CPR before ECLS, although 30 patients (83.3%) received ECLS during CPR because spontaneous circulation failed to return. All patients underwent intraaortic counterpulsation either before or following rescue. Seven patients underwent angioplasty only, and one underwent heart transplantation without any intervention. Twenty-eight patients underwent coronary artery bypass grafting (CABG), in which the beating-heart technique was used for 20 patients. MEASUREMENTS AND MAIN RESULTS: The pre-ECLS blood lactate level was high (13.4 +/- 8.5 mmol/L), as was the inotropic score (121.4 +/- 117.3 microg/kg/min). Twenty-five patients (69.4%) were successfully weaned off ECLS, and 12 (48%) survived to discharge (one had a neurologic deficit). The overall mortality rate was 66.7%. A lower inotropic score, reduced blood lactate level, shorter CPR duration, surgical revascularization, and a reduced total maximal Sepsis-related Organ Failure Assessment (SOFA) score were noted among survivors. Liver failure, central nervous system failure, and renal failure mainly occurred in nonsurvivors after ECLS. The technique used for surgical revascularization (beating heart or arrested heart) did not influence the outcome. ECLS is associated with a lower mortality rate than that expected (>90%) from the resultant total maximal SOFA score (16.6 +/- 3.0). CONCLUSIONS:: AMI complicated with refractory shock remains associated with a high mortality rate, even following ECLS rescue, although ECLS might afford a better chance of survival. The SOFA score can be applied to ECLS condition as a reference point for predicting outcome.
Authors:
Jer-Shen Chen; Wen-Je Ko; Hsi-Yu Yu; Lin-Ping Lai; Shu-Chein Huang; Nai-Hsin Chi; Chang-Her Tsai; Shoei-Shen Wang; Fang-Yu Lin; Yih-Sharng Chen
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Publication Detail:
Type:  Comment; Journal Article    
Journal Detail:
Title:  Critical care medicine     Volume:  34     ISSN:  0090-3493     ISO Abbreviation:  Crit. Care Med.     Publication Date:  2006 Apr 
Date Detail:
Created Date:  2006-03-23     Completed Date:  2006-05-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0355501     Medline TA:  Crit Care Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  950-7     Citation Subset:  AIM; IM    
Affiliation:
Division of Cardiovascular Surgery, Cardiovascular Center, Far Eastern Memorial Hospital, Taipei, Taiwan.
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MeSH Terms
Descriptor/Qualifier:
Advanced Cardiac Life Support
Cardiopulmonary Resuscitation*
Extracorporeal Circulation*
Female
Humans
Male
Middle Aged
Myocardial Infarction / complications*
Retrospective Studies
Shock, Cardiogenic / etiology,  therapy*
Treatment Outcome
Comments/Corrections
Comment On:
Crit Care Med. 2006 Apr;34(4):1248-9   [PMID:  16550075 ]

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


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