Estimation of cardiac output from left ventricular pressure by a modified modelflow method

Sergio Valsecchi, G. B. Perego, F. Censi, J. J. Schreuder

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

Abstract

The Modelflow method (MM) requires the recording of the aortic pressure signal, to compute cardiac output (CO) by simulating a non-linear three-element model of aortic input impedance. We propose an extended MM to be applied to the intraventricular pressure signal, to obtain an independent estimation of CO in the setting of conductance measurements. Hemodynamic tests were performed in 21 patients with heart failure during atriobiventricular pacing. Comparing CO by extended MM simulation with standard MM, the bias was -0.04 (0.36) l/min, with limits of agreement of -0.77 and 0.70 l/min, and a coefficient of variation of 8.4%. In patients without mitral and aortic abnormalities, the continuous CO estimation with the proposed method seems reliable. This method presents an acceptable precision to replace conventional aortic MM estimation in subjects undergoing intraventricular pressure acquisition, such as during conductance catheter evaluation.

Original languageEnglish
Title of host publicationComputers in Cardiology
Pages873-876
Number of pages4
Volume33
Publication statusPublished - 2006
Event2006 Computers in Cardiology, CIC - Valencia, Spain
Duration: Sep 17 2006Sep 20 2006

Other

Other2006 Computers in Cardiology, CIC
CountrySpain
CityValencia
Period9/17/069/20/06

Fingerprint

Ventricular Pressure
Cardiac Output
Catheters
Hemodynamics
Electric Impedance
Arterial Pressure
Heart Failure

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Software

Cite this

Valsecchi, S., Perego, G. B., Censi, F., & Schreuder, J. J. (2006). Estimation of cardiac output from left ventricular pressure by a modified modelflow method. In Computers in Cardiology (Vol. 33, pp. 873-876). [4511991]

Estimation of cardiac output from left ventricular pressure by a modified modelflow method. / Valsecchi, Sergio; Perego, G. B.; Censi, F.; Schreuder, J. J.

Computers in Cardiology. Vol. 33 2006. p. 873-876 4511991.

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

Valsecchi, S, Perego, GB, Censi, F & Schreuder, JJ 2006, Estimation of cardiac output from left ventricular pressure by a modified modelflow method. in Computers in Cardiology. vol. 33, 4511991, pp. 873-876, 2006 Computers in Cardiology, CIC, Valencia, Spain, 9/17/06.
Valsecchi S, Perego GB, Censi F, Schreuder JJ. Estimation of cardiac output from left ventricular pressure by a modified modelflow method. In Computers in Cardiology. Vol. 33. 2006. p. 873-876. 4511991
Valsecchi, Sergio ; Perego, G. B. ; Censi, F. ; Schreuder, J. J. / Estimation of cardiac output from left ventricular pressure by a modified modelflow method. Computers in Cardiology. Vol. 33 2006. pp. 873-876
@inproceedings{96f6137a52814788850f1f8a220ff034,
title = "Estimation of cardiac output from left ventricular pressure by a modified modelflow method",
abstract = "The Modelflow method (MM) requires the recording of the aortic pressure signal, to compute cardiac output (CO) by simulating a non-linear three-element model of aortic input impedance. We propose an extended MM to be applied to the intraventricular pressure signal, to obtain an independent estimation of CO in the setting of conductance measurements. Hemodynamic tests were performed in 21 patients with heart failure during atriobiventricular pacing. Comparing CO by extended MM simulation with standard MM, the bias was -0.04 (0.36) l/min, with limits of agreement of -0.77 and 0.70 l/min, and a coefficient of variation of 8.4{\%}. In patients without mitral and aortic abnormalities, the continuous CO estimation with the proposed method seems reliable. This method presents an acceptable precision to replace conventional aortic MM estimation in subjects undergoing intraventricular pressure acquisition, such as during conductance catheter evaluation.",
author = "Sergio Valsecchi and Perego, {G. B.} and F. Censi and Schreuder, {J. J.}",
year = "2006",
language = "English",
isbn = "1424425328",
volume = "33",
pages = "873--876",
booktitle = "Computers in Cardiology",

}

TY - GEN

T1 - Estimation of cardiac output from left ventricular pressure by a modified modelflow method

AU - Valsecchi, Sergio

AU - Perego, G. B.

AU - Censi, F.

AU - Schreuder, J. J.

PY - 2006

Y1 - 2006

N2 - The Modelflow method (MM) requires the recording of the aortic pressure signal, to compute cardiac output (CO) by simulating a non-linear three-element model of aortic input impedance. We propose an extended MM to be applied to the intraventricular pressure signal, to obtain an independent estimation of CO in the setting of conductance measurements. Hemodynamic tests were performed in 21 patients with heart failure during atriobiventricular pacing. Comparing CO by extended MM simulation with standard MM, the bias was -0.04 (0.36) l/min, with limits of agreement of -0.77 and 0.70 l/min, and a coefficient of variation of 8.4%. In patients without mitral and aortic abnormalities, the continuous CO estimation with the proposed method seems reliable. This method presents an acceptable precision to replace conventional aortic MM estimation in subjects undergoing intraventricular pressure acquisition, such as during conductance catheter evaluation.

AB - The Modelflow method (MM) requires the recording of the aortic pressure signal, to compute cardiac output (CO) by simulating a non-linear three-element model of aortic input impedance. We propose an extended MM to be applied to the intraventricular pressure signal, to obtain an independent estimation of CO in the setting of conductance measurements. Hemodynamic tests were performed in 21 patients with heart failure during atriobiventricular pacing. Comparing CO by extended MM simulation with standard MM, the bias was -0.04 (0.36) l/min, with limits of agreement of -0.77 and 0.70 l/min, and a coefficient of variation of 8.4%. In patients without mitral and aortic abnormalities, the continuous CO estimation with the proposed method seems reliable. This method presents an acceptable precision to replace conventional aortic MM estimation in subjects undergoing intraventricular pressure acquisition, such as during conductance catheter evaluation.

UR - http://www.scopus.com/inward/record.url?scp=50149097734&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=50149097734&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:50149097734

SN - 1424425328

SN - 9781424425327

VL - 33

SP - 873

EP - 876

BT - Computers in Cardiology

ER -