Evaluation of respiratory influences on left ventricular function by means of echocardiographic approach

A. Porta, G. Baselli, M. Turiel, C. Crema, L. Dalla Vecchia, D. Lucini, E. Caiani, A. Malliani, M. Pagani, S. Cerutti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A procedure to automatically extract the beat-to-beat series of well-known clinical parameters from the left ventricular volume signal obtained by the acoustic quantification technique is validated in normal subjects and chronic heart failure patients (NYHA class II-III). The end systolic and diastolic volume, the contribution of the atrial contraction to the ventricular filling and the ejection faction provide a vivid distinction between normal and pathological subjects. However a large amount of variability at the respiratory frequency is observed. The respiratory-related variability of the left ventricular volume parameters could be related to the capability of the heart to adapt to changes of the venous return and, therefore, could be used as an index of the cardiac mechanical efficiency.

Original languageEnglish
Title of host publicationComputers in Cardiology
PublisherIEEE Comp Soc
Pages403-406
Number of pages4
Publication statusPublished - 1997
EventProceedings of the 1997 24th Annual Meeting on Computers in Cardiology - Lund, Sweden
Duration: Sep 7 1997Sep 10 1997

Other

OtherProceedings of the 1997 24th Annual Meeting on Computers in Cardiology
CityLund, Sweden
Period9/7/979/10/97

ASJC Scopus subject areas

  • Software
  • Cardiology and Cardiovascular Medicine

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