alexa Noninvasive calibration of cardiac pressure transducers in patients with heart failure: an aid to implantable hemodynamic monitoring and therapeutic guidance.


Journal of Cardiovascular Diseases & Diagnosis

Author(s): McClean D, Aragon J, Jamali A, Kar S, RitzemaCarter J,

Abstract Share this page

Abstract BACKGROUND: Implantable cardiac pressure monitors require assurance of calibration. This study evaluated if airway pressure responses during Valsalva maneuver (VM) can be used for calibrating intracardiac pressure transducers. METHODS AND RESULTS: Thirty-eight heart failure patients performed VMs while cardiac and airway pressures were recorded. Patients were designated as Lower (L) if baseline PCW was <20 mm Hg (n = 17); otherwise, they were categorized as Higher (H) (n = 21). VMs were repeated in 9 H patients after nitroglycerin. Procedural success was 92\% and there were no complications. Differences between filling pressure and airway pressure (effective pressure) were eliminated during VM (RA(eff) = -0.9 +/- 1.3, RVED(eff) = 1.2 +/- 1.1, PCW(eff) = 2.1 +/- 2.8, and LVED(eff) = 0.9 +/- 1.6 mm Hg), and filling pressures were highly correlated with airway pressure r = 0.94. On average, group H had higher PCW(eff) and LVED(eff) than L patients by 1.8 and 2.5 mm Hg (P < or = .002), respectively, but after nitrates their responses were identical. CONCLUSION: The relationships between cardiac filling pressure and airway pressure during the Valsalva maneuver are sufficiently reliable to be considered as a new, noninvasive method for establishing the calibration of cardiac pressure sensors in patients with heart failure. This article was published in J Card Fail and referenced in Journal of Cardiovascular Diseases & Diagnosis

Relevant Expert PPTs

Relevant Speaker PPTs

  • Rohit A
    Cardiovascular risk prediction using WHO/ISH chart in urban and rural subjects attending diabetes screening clinic: A pilot study
    PPT Version | PDF Version
  • Myriam Isnard-Rouchon
    Cardiovascular risk factors evolution during 6 months intra dialytic aerobic cycling program in hemodaylais patients: Hypertension, hyperlipidemia, hemoglobin stability and cardiovascular morbidity in hemodaylais patients
    PPT Version | PDF Version
  • Mauricio Laerte Silva
    Cardiac Diastolic Function in Pediatric AIDS/HIV-carriers: Assessment, Treatment and Prevention of Future Cardiovascular Diseases
    PPT Version | PDF Version
  • Ishfaq A Bukhari
    Protective Effect of Diltiazem and Fenofibrate Against Ischemia-reperfusion Induced Cardiac Arrhythmias in the Isolated Rat Heart.
    PPT Version | PDF Version
  • Vladimir E. Bondarenko
    Mathematical model of β1-adrenergic signaling in mouse ventricular myocytes as an in silico tool for the cardiovascular drug test
    PPT Version | PDF Version
  • Pollen K F Yeung
    ATP Metabolism as Biomarker Target for Cardiovascular Protection and Toxicity
    PDF Version
  • Antonio Ferrari
    Spontaneous Ventricular Arrhythmias in Early Clinical Trials A Report from a Single and Repeated Ascending Dose Study
    PDF Version
  • Mohamed Chahine
    A novel mechanism of an SCN5A mutation causing mixed arrhythmias associated with dilated cardiomyopathy
    PDF Version
  • Maravic Stojkovic V
    Blood Loss and Intraoperative Salvage Procedure in Patients Underwent Re-operation Coronary Artery Bypass
    PDF Version
  • Saverio Gentile
    Ion channels phosphorylopathy: 3rd International Conference on Clinical & Experimental Cardiology April 15-17, 2013 A link between genomic variations and heart arrhythmia
    PDF Version

Recommended Conferences

  • 19th Annual Cardiology Congress
    August 31-September 01, 2017 Philadelphia, USA
  • 23rd International Conference on Heart Diseases & Angiology
    Oct 16-17, 2017 Budapest, Hungary
  • 20th European Cardiology Congress
    October 16-18, 2017 Budapest, Hungary
  • 3rd Global Summit on Heart Diseases
    November 02-04, 2017 Bangkok, Thailand
  • 22nd World Cardiology Congress
    December 11-12, 2017 Rome, Italy

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version