American Heart Journal
Volume 157, Issue 3 , Pages 402-411, March 2009

Measuring impedance in congestive heart failure: Current options and clinical applications

  • W.H. Wilson Tang, MD

      Affiliations

    • Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
    • Corresponding Author InformationReprint requests: W.H. Wilson Tang, MD, Heart and Vascular Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk J3, Cleveland, Ohio 44195.
    • ,
  • Wilson Tong, MSc

      Affiliations

    • University of Cincinnati School of Medicine, Cincinnati, OH

Received 30 April 2008; accepted 7 October 2008. published online 17 December 2008.

Measurement of impedance is becoming increasingly available in the clinical setting as a tool for assessing hemodynamics and volume status in patients with heart failure. The 2 major categories of impedance assessment are the band electrode method and the implanted device lead method. The exact sources of the impedance signal are complex and can be influenced by physiologic effects such as blood volume, fluid, and positioning. This article provides a critical review of our current understanding and promises of impedance measurements, the techniques that have evolved, as well as the evidence and limitations regarding their clinical applications in the setting of heart failure management.

To access this article, please choose from the options below

Login to an existing account or Register a new account.

  • Purchase this article for 31.50 USD (You must login/register to purchase this article)

    Online access for 24 hours. The PDF version can be downloaded as your permanent record.

  • Subscribe to this title

    Get unlimited online access to this article and all other articles in this title 24/7 for one year.

  • Claim access now

    For current subscribers with Society Membership or Account Number.

  • Visit SciVerse ScienceDirect to see if you have access via your institution.
 

 Dr. Tang is supported in part by the National Institutes of Health, National Center for Research Resources, CTSA 1UL1RR024989, Cleveland, OH.

PII: S0002-8703(08)00906-X

doi:10.1016/j.ahj.2008.10.016

American Heart Journal
Volume 157, Issue 3 , Pages 402-411, March 2009

Article Tools

* Image Usage & Resolution