Document Detail

Application of impedance threshold devices during cardiopulmonary cerebral resuscitation.
MedLine Citation:
PMID:  21631704     Owner:  NLM     Status:  In-Data-Review    
Objective - To review the use of impedance threshold devices (ITD) during CPCR, their proposed mechanism of action, and their application in veterinary medicine. Data Sources - Data sources include scientific reviews and original research publications using the PubMed search engine with the following keywords: 'impedance threshold device' and 'resuscitation' and the Veterinary Information Network search function using the keywords 'impedance threshold device.' Human Data Synthesis - Studies in human medicine have demonstrated that the use of an ITD during CPCR in patients during out-of-hospital cardiac arrest improves coronary perfusion pressure and cerebral perfusion pressure. This improvement in vital organ blood flow results in increased cardiac output and faster return of spontaneous circulation. The use of an ITD has been studied in people and currently holds a class IIb level of recommendation according to the 2010 American Heart Association Guidelines for CPR and Emergency Cardiovascular Care. This device is recommended as a way to improve hemodynamics during CPCR by enhancing venous return and avoiding hyperventilation, thereby increasing the likelihood of a successful resuscitation. Veterinary Data Synthesis - Multiple controlled studies using pigs with ventricular fibrillation induced cardiopulmonary arrest have demonstrated increased myocardial and cerebral perfusion with the use of an ITD. These studies have emphasized the importance of decreasing intrathoracic pressures during the decompression phase of CPCR and avoiding hyperventilation in order to maximize vital organ blood flow. Conclusions - Use of an ITD during CPCR in human and animal studies has demonstrated improved vital organ perfusion and faster return of spontaneous circulation. However, the majority of these studies have been carried out in people during out-of-hospital cardiac arrest and ventricular fibrillation cardiopulmonary arrest pig models. Further studies evaluating the use of an ITD during CPCR in the veterinary hospital setting are warranted.
Megan B Seekins; Adam J Reiss
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Publication Detail:
Type:  Journal Article     Date:  2011-05-05
Journal Detail:
Title:  Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)     Volume:  21     ISSN:  1476-4431     ISO Abbreviation:  J Vet Emerg Crit Care (San Antonio)     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-06-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101152804     Medline TA:  J Vet Emerg Crit Care (San Antonio)     Country:  United States    
Other Details:
Languages:  eng     Pagination:  187-92     Citation Subset:  IM    
Copyright Information:
© Veterinary Emergency and Critical Care Society 2011.
Southern Oregon Veterinary Specialty Center, Medford, OR 97504.
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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